Radio wave radiation system and radio wave radiation device

Abstract

Provided are a radio wave radiation system and a radio wave radiation device which enable reduction in introduction cost. The radio wave radiation system comprises the radio wave radiation device and one or more expansion radiation devices. The radio wave radiation device comprises: a signal generation unit which generates a first high frequency signal and one or more second high frequency signals having the same frequency band and the same phase; a first radio wave radiation unit which enables radiation of a first radio wave on the basis of the first high frequency signal; and an output unit which has one or more output terminals and outputs the one or more second high frequency signals from one or more second output terminals among the one or more output terminals. Each of the expansion radiation devices comprises: a second input unit which is connected to one of the one or more second output terminals via a coaxial cable and to which one of the one or more second high frequency signals is inputted; and a second radio wave radiation unit which enables radiation of a second radio wave on the basis of the second high frequency signal.

Description

Radio wave emission system, radio wave emission device

[0001] The present disclosure relates to a radio wave emitting system and a radio wave emitting device.

[0002] In Patent Document 1, a solid-state microwave generating system includes an exciter unit that provides a signal, and a microwave power amplifier module that is driven at least in part by the signal from the exciter unit. The microwave power amplifier module includes a plurality of power transistors operatively connected in parallel. In the solid-state microwave generating system, a plurality of microwave power amplifier modules are operatively connected in parallel to obtain a desired amount of output power.

[0003] U.S. Pat. No. 1,072,0310

[0004] Radio wave emission systems such as solid-state microwave generating systems have a variety of applications, but when used in industrial processing equipment, there is a strong possibility that the required specifications (e.g., output power, number of radiant power feeds) will change after the radio wave emission system is installed. Such specification changes are due to insufficient processing accuracy when the radio wave emission system is actually used, or changes in the processing algorithm.

[0005] To accommodate changes in the specifications of a radio wave emission system after its installation, it may be necessary to install a new radio wave emission system or to make major modifications to the existing radio wave emission system. Preliminary verification is sometimes performed to prevent such changes to the specifications of the radio wave emission system after its installation. However, in Patent Document 1, microwaves cannot be output unless the solid-state microwave generating system itself is constructed, so a separate microwave energy device must be secured for preliminary verification. This can lengthen the development schedule for the entire radio wave emission system and increase the scale of the development project, which can result in significant impacts on labor hours and costs, leading to increased implementation costs.

[0006] The present disclosure provides a radio wave emission system and a radio wave emission device that enable reduction in installation costs.

[0007] A radio wave emission system according to one aspect of the present disclosure includes a radio wave emission device and one or more extended radiation devices, wherein the radio wave emission device includes a signal generation unit that generates a plurality of high frequency signals having the same frequency band and phase, a first adjustment unit that adjusts a first high frequency signal among the plurality of high frequency signals with respect to at least one of phase and power, a first signal amplification unit that amplifies the first high frequency signal adjusted by the first adjustment unit, a first radio wave emission unit that can radiate a first radio wave based on the first high frequency signal amplified by the first signal amplification unit, and one or more output terminals that can be connected to a coaxial cable, and a first radio wave emission unit that can radiate a first radio wave based on the first high frequency signal amplified by the first signal amplification unit. and an output section that outputs one or more second high-frequency signals from one or more second output terminals among one or more output terminals, and each of the one or more extended radiation devices comprises: a second input section that is connected to one of the one or more second output terminals via a coaxial cable and to which one of the one or more second high-frequency signals is input; a second adjustment section that adjusts the second high-frequency signal input to the second input section with respect to at least one of the phase and power; a second signal amplification section that amplifies the second high-frequency signal adjusted by the second adjustment section; and a second radio wave radiation section that enables radiation of a second radio wave based on the second high-frequency signal amplified by the second signal amplification section.

[0008] A radio wave emission device according to one aspect of the present disclosure is a radio wave emission device to which one or more extended emission devices can be connected, and includes a signal generation unit that generates a plurality of high-frequency signals having the same frequency band and phase, a first adjustment unit that adjusts a first high-frequency signal among the plurality of high-frequency signals in terms of at least one of phase and power, a first signal amplification unit that amplifies the first high-frequency signal adjusted by the first adjustment unit, a first radio wave emission unit that can radiate a first radio wave based on the first high-frequency signal amplified by the first signal amplification unit, and one or more output terminals that can be connected to a coaxial cable, and and an output unit that outputs the second high-frequency signal from one or more second output terminals among the one or more output terminals, and each of the one or more extended radiation devices comprises: a second input unit that is connected to one of the one or more second output terminals via a coaxial cable and to which one of the one or more second high-frequency signals is input; a second adjustment unit that adjusts the second high-frequency signal input to the second input unit with respect to at least one of the phase and power; a second signal amplification unit that amplifies the second high-frequency signal adjusted by the second adjustment unit; and a second radio wave radiation unit that enables radiation of a second radio wave based on the second high-frequency signal amplified by the second signal amplification unit.

[0009] A radio wave emitting device according to one aspect of the present disclosure comprises an adjustment unit that adjusts a received high-frequency signal in terms of at least one of phase and power, a signal amplification unit that amplifies the high-frequency signal adjusted by the adjustment unit, a radio wave emitting unit that enables radio waves to be emitted based on the high-frequency signal amplified by the signal amplification unit, one or more circuit boards on which the adjustment unit, the signal amplification unit, and the radio wave emitting unit are mounted, and a casing that houses the one or more circuit boards, wherein the one or more circuit boards include a first mounting area capable of mounting at least a portion of a first signal generating unit that generates multiple high-frequency signals having the same frequency band and phase, or at least a portion of a second signal generating unit that generates a single high-frequency signal, and a second mounting area capable of mounting at least one of an output unit having one or more output terminals that can be connected to a coaxial cable and an input unit that can be connected to a coaxial cable.

[0010] Aspects of the present disclosure allow for reduced implementation costs.

[0011] Schematic diagram of a radio wave radiation system according to a first embodiment. Block diagram of a radio wave radiation system according to a first embodiment. Explanatory diagram of a circuit configuration common to a radio wave radiation device and an extended radiation device according to a first embodiment. Explanatory diagram of a radio wave radiation device according to a first embodiment. Perspective view of a radio wave radiation device according to a first embodiment. Explanatory diagram of an extended radiation device according to a first embodiment. Explanatory diagram of an individual radiation device according to a first embodiment. Schematic diagram of a radio wave radiation system according to a second embodiment. Block diagram of a radio wave radiation system according to a second embodiment. Explanatory diagram of a circuit configuration common to a radio wave radiation device and an extended radiation device according to a second embodiment. Explanatory diagram of a radio wave radiation device according to a second embodiment. Perspective view of a radio wave radiation device according to a second embodiment. Explanatory diagram of an extended radiation device according to a second embodiment. Explanatory diagram of an individual radiation device according to a second embodiment. Schematic diagram of a radio wave radiation system according to a third embodiment. Block diagram of a radio wave radiation system according to a third embodiment. Explanatory diagram of a circuit configuration common to a radio wave radiation device and an extended radiation device according to a third embodiment. Explanatory diagram of a radio wave radiation device according to a third embodiment.

[0012] [1. Embodiments] Hereinafter, embodiments of the present disclosure will be described, with reference to the drawings where appropriate. However, the following embodiments are merely examples for explaining the present disclosure, and are not intended to limit the present disclosure to the following content (e.g., the shape, dimensions, and arrangement of each component). Positional relationships, such as up, down, left, and right, are based on the positional relationships shown in the drawings unless otherwise specified. Each figure described in the following embodiments is a schematic diagram, and the ratios of the size and thickness of each component in each figure do not necessarily reflect the actual dimensional ratios. Furthermore, the dimensional ratios of each element are not limited to the ratios shown in the drawings.

[0013] In the following description, when it is necessary to distinguish between multiple components, prefixes such as "first" and "second" are added to the names of the components. However, when the components can be distinguished from each other by the symbols attached to them, the prefixes such as "first" and "second" may be omitted in consideration of readability of the text.

[0014] In the following description, when it is necessary to distinguish between multiple components, suffixes such as "-1" and "-2" are added to the symbols of the components. However, when it is not necessary to distinguish between multiple components, the suffixes "-1" and "-2" may be omitted to improve readability.

[0015] [1.1 First Embodiment] [1.1.1 Configuration] FIG. 1 is a schematic diagram of a radio wave emission system 1 according to a first embodiment. The radio wave emission system 1 is used to emit radio waves of a desired output power to an object to be irradiated. The radio wave emission system 1 includes a radio wave emission device 11 and one or more extended radiation devices 12 (12-1 to 12-7). Seven extended radiation devices 12-1 to 12-7 are illustrated in FIG. 1. In the radio wave emission system 1, the radio wave emission device 11 and the extended radiation device 12 have the function of enabling radio wave emission. As an example, the radio wave emission device 11 and the extended radiation device 12 can emit radio waves with an output power of 250 W. In the radio wave emission system 1, the maximum output power of radio waves that can be emitted from the radio wave emission system 1 can be changed by changing the number of extended radiation devices 12. If there are seven extended radiation devices 12, the maximum output of radio waves is 250 W × (1 + 7) = 2 kW, and if there is one extended radiation device 12, the maximum output of radio waves is 250 W × (1 + 1) = 500 W. In the radio wave radiation system 1, the radio wave radiation device 11 is a master-type radio wave radiation device that can emit radio waves independently, and the extended radiation device 12 is a slave-type radio wave radiation device that cannot emit radio waves without the master-type radio wave radiation device.

[0016] FIG. 2 is a block diagram of the radio wave emission system 1 according to the first embodiment.

[0017] The radio wave emitting device 11 includes a signal generating unit 2, a first adjustment unit 31, a first signal amplifier 41, a first radio wave emitting unit 51, an output unit 61, a first input unit 71, a first communication unit 81, and a first control unit 91.

[0018] The signal generating unit 2 generates, for example, a high-frequency signal for generating radio waves to be irradiated onto an irradiation target. The frequency of the high-frequency signal is set appropriately depending on the application of the radio wave emission system 1. Applications of the radio wave emission system 1 include consumer applications, industrial applications, medical applications, scientific applications, etc. When the radio wave emission system 1 is used for consumer applications, particularly for heaters such as microwave ovens, the frequency of the high-frequency signal may be, for example, 1 MHz to 10 GHz. By irradiating a dielectric with radio waves using a high-frequency signal of such a frequency, dielectric loss occurs inside the dielectric, and heat is generated in the dielectric. This allows the dielectric to be heated.

[0019] The signal generating section 2 generates a plurality of high frequency signals having the same frequency band and phase. In this embodiment, the signal generating section 2 is configured to be able to generate a maximum of eight high frequency signals.

[0020] The signal generating unit 2 includes an oscillator circuit 21, a power adjusting unit 22, and a distributor 23. The signal generating unit 2 may be configured, for example, with an FPGA (Field-Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), or the like.

[0021] The oscillator circuit 21 generates a reference high-frequency signal. For example, the oscillator circuit 21 converts a commercial AC voltage into a DC voltage and generates the reference high-frequency signal by voltage control using a semiconductor supplied with the DC voltage. The oscillator circuit 21 may also be equipped with a frequency synthesizer that generates a reference clock using a quartz oscillator or a ceramic oscillator, thereby generating the reference high-frequency signal.

[0022] The power adjustment unit 22 is used, for example, to adjust the power of the high-frequency signal from the oscillation circuit 21. The power adjustment unit 22 includes, for example, a digital attenuator or an analog attenuator.

[0023] The divider 23 outputs multiple high-frequency signals by equally dividing the reference high-frequency signal. That is, the frequency bands and phases of the multiple high-frequency signals are equal to the frequency bands and phases of the reference high-frequency signal. The divider 23 includes an input terminal 231 and multiple output terminals 232 (232-1 to 232-8). The divider 23 outputs, from each output terminal 232, a high-frequency signal having the same frequency band and phase as the reference high-frequency signal input to the input terminal 231. In this embodiment, the divider 23 is configured to be able to output up to eight high-frequency signals. One of the eight high-frequency signals is used as a first high-frequency signal, and the remaining seven are used as second high-frequency signals. In this embodiment, the high-frequency signal output from output terminal 232-8 is used as the first high-frequency signal. The remaining high-frequency signals output from output terminals 232-1 to 232-7 are used as second high-frequency signals. The number of second high-frequency signals is set according to the number of extended radiating devices 12.

[0024] The first adjustment unit 31 adjusts at least one of the phase and power of a first high-frequency signal among the multiple high-frequency signals. The phase of the first high-frequency signal serves as a reference for the phase of the second high-frequency signal. Hereinafter, the phase of the first high-frequency signal will be referred to as a reference phase. The first adjustment unit 31 includes a phase adjuster 311 and a variable amplifier 312. In this embodiment, the first adjustment unit 31 is configured to be able to adjust both the phase and power of the first high-frequency signal.

[0025] The first signal amplifier 41 is a signal amplifier that amplifies the first high-frequency signal adjusted by the first adjustment unit 31. The first signal amplifier 41 may have one or more amplifiers. At least one of the one or more amplifiers may include a transistor. The transistor may be, for example, a field-effect transistor. The transistor may be, for example, a normally-on type. An amplifier including a transistor may be a common-source circuit in which the source terminal of the transistor is grounded, and such an amplifier outputs an amplified high-frequency signal from the drain terminal in response to a high-frequency signal input to the gate terminal of the transistor.

[0026] In this embodiment, the first signal amplification unit 41 includes a plurality of amplifiers connected in series to form a multistage amplifier. The multistage amplifier allows the first high-frequency signal to be amplified multiple times. For example, a driver stage (input stage) amplifier may amplify 0.1 mW to 10 W, and a final stage (output stage) amplifier may amplify 10 W to 250 W. A multistage amplifier can distribute heat generation locations and reduce heat density, allowing heat to be dissipated with a simple cooling structure. Thus, in this embodiment, the first signal amplification unit 41 forms a high-power amplifier (HPA).

[0027] The first radio wave emitting section 51 is capable of emitting a first radio wave based on the first high frequency signal amplified by the first signal amplifier 41. The first radio wave emitting section 51 is, for example, an antenna that radiates radio waves.

[0028] The output unit 61 outputs a high-frequency signal from the radio wave emission device 11 to the outside. The output unit 61 has a plurality of output terminals 611 (611-1 to 611-8). Each output terminal 611 can be connected to a coaxial cable. The output terminals 611-1 to 611-8 of the output unit 61 are connected to the plurality of output terminals 232-1 to 232-8 of the distributor 23, respectively. The output terminal 611-8 is used as a first output terminal that outputs a first high-frequency signal. The remaining output terminals 611-1 to 611-7 are used as second output terminals that output second high-frequency signals, respectively. In this manner, the output unit 61 outputs the first high-frequency signal from the first output terminal 611-8 of the plurality of output terminals 611. The output unit 61 outputs one or more second high-frequency signals from one or more second output terminals 611-1 to 611-7 of the plurality of output terminals 611, respectively.

[0029] In this embodiment, seven extended radiating devices 12-1 to 12-7 can be connected to the second output terminals 611-1 to 611-7 via coaxial cables C1-1 to C1-7, respectively.

[0030] The first input unit 71 can be connected to a coaxial cable. The first input unit 71 is connected to the first output terminal 611-8 of the output unit 61 via the coaxial cable C2. Therefore, a first high-frequency signal is input to the first input unit 71. The first input unit 71 is connected to the first adjustment unit 31, and inputs the received first high-frequency signal to the first adjustment unit 31.

[0031] In this way, a plurality of coaxial cables C1-1 to C1-7, C2 can be connected to the plurality of output terminals 611 of the output unit 61. In the radio wave emission system 1, it is preferable that the phases of the radio waves emitted from the radio wave emission device 11 and the extended emission device 12 are synchronized and matched. The lengths of the coaxial cables C1, C2 can affect the phases of the radio waves. Therefore, in this embodiment, the lengths of the plurality of coaxial cables C1, C2 connected to the plurality of output terminals 611 of the output unit 61 are equal to each other.

[0032] The first communication unit 81 transmits a communication signal. The communication signal is, for example, a serial signal. A communication terminal 81 a is connected to the first communication unit 81. The communication signal from the first communication unit 81 is transmitted to the extended radiation device 12.

[0033] The first control unit 91 controls the signal generating unit 2 , the first adjusting unit 31 , and the first signal amplifying unit 41 .

[0034] The first control unit 91 controls the power adjustment unit 22 of the signal generation unit 2. In the radio wave emission system 1, the maximum output of radio waves can be adjusted depending on the number of extended emission devices 12. Here, the number of second high-frequency signals is determined according to the number of extended emission devices 12. For the same power of the reference high-frequency signal, the power of each high-frequency signal decreases as the number of distributed high-frequency signals (particularly the number of second high-frequency signals) increases. Therefore, the first control unit 91 adjusts the power of the reference high-frequency signal based on the number of multiple high-frequency signals so that each of the multiple high-frequency signals has a predetermined power. The predetermined power is, for example, 0.1 mW. Assuming there is no power loss in the distributor 23, if the number of second high-frequency signals is 1, the power of the reference high-frequency signal is set to 0.1 mW × (1 + 1) = 0.2 mW. If the number of second high-frequency signals is 7, the power of the reference high-frequency signal is set to 0.1 mW × (1 + 7) = 0.8 mW.

[0035] The first control unit 91 adjusts the phase of the first high-frequency signal using the phase adjuster 311 of the first adjustment unit 31. For example, the first control unit 91 adjusts the phase of the first high-frequency signal to a phase target value using the first adjustment unit 31. In the radio wave emission system 1, it is preferable that the phases of the radio waves emitted from the radio wave emission device 11 and the extended radiation device 12 match. In order to match the phases of the first high-frequency signal and the second high-frequency signal, the first control unit 91 transmits the phase target value to the extended radiation device 12 by a communication signal via the first communication unit 81.

[0036] The first control unit 91 adjusts the power of the first high-frequency signal using the variable amplifier 312 of the first adjustment unit 31. For example, the first control unit 91 refers to a first lookup table indicating the relationship between the output power of the radio wave emission system 1 and the power of the first high-frequency signal, and performs feedback control of the first adjustment unit 31 (variable amplifier 312) so that the power of the first high-frequency signal becomes a power corresponding to a given target value of output power. In the first lookup table, the target value of the output power of the radio wave emission system 1 and the adjusted value of the power of the first high-frequency signal are appropriately set based on the output power of the first radio wave corresponding to the target value of the output power of the radio wave emission system 1, the number of extended radiation devices 12, and the amplification factor of the first signal amplifier 41. The first lookup table is changed depending on at least one of the number of extended radiation devices 12 and the difference in length between the coaxial cables C1 and C2. As an example, when the length of the coaxial cable C2 transmitting the first high-frequency signal to the input unit 71 is different from the length of the coaxial cable C1 transmitting the second high-frequency signal to the extended radiating device 12, the first lookup table is changed according to the difference in loss between the coaxial cables C1 and C2. For example, the first lookup table is changed so that the output power of the first radio wave and the output power of the second radio wave are equal, taking into account the difference in loss between the coaxial cables C1 and C2. As an example, when the number of extended radiating devices 12 exceeds the upper limit of the adjustment range of the power adjustment unit 22, the first lookup table is changed according to the excess number. For example, if the upper limit of the adjustment range of the power adjustment unit 22 is 5 in the current first lookup table, in order to use seven extended radiating devices 12, the first lookup table is changed so that the upper limit of the adjustment range of the power adjustment unit 22 is 7 or more. In order to match the power of the first high-frequency signal and the second high-frequency signal, the first control unit 91 transmits the target value of the output power of the radio wave radiation system 1 to the extended radiation device 12 via a communication signal via the first communication unit 81.

[0037] The first control unit 91 may be configured, for example, by a microcontroller having one or more microprocessors and a memory. The first control unit 91 may be configured, for example, by a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC).

[0038] The extended radiation device 12 includes a second adjustment unit 32 , a second signal amplification unit 42 , a second radio wave radiation unit 52 , a second input unit 72 , a second communication unit 82 , and a second control unit 92 .

[0039] The second input unit 72 is connectable to a coaxial cable. The second input unit 72 is connected to one of the second output terminals 611 of the output unit 61 via the coaxial cable C1. Therefore, one of the second high-frequency signals is input to the second input unit 72. The second input unit 72 is connected to the second adjustment unit 32, and inputs the received second high-frequency signal to the second adjustment unit 32.

[0040] The second adjustment unit 32 adjusts at least one of the phase and power of a second high-frequency signal among the multiple high-frequency signals. The phase of the second high-frequency signal is adjusted so that the difference from the phase (reference phase) of the first high-frequency signal becomes small. That is, the second adjustment unit 32 can be used to adjust the phase difference between the first high-frequency signal and the second high-frequency signal. Like the first adjustment unit 31, the second adjustment unit 32 includes a phase adjuster 311 and a variable amplifier 312. In this embodiment, the second adjustment unit 32 is configured to be able to adjust both the phase and power of the second high-frequency signal.

[0041] The second signal amplifier 42 is a signal amplifier that amplifies the second high-frequency signal adjusted by the second adjustment unit 32. Similar to the first signal amplifier 41, the second signal amplifier 42 may have one or more amplifiers. At least one of the one or more amplifiers may include a transistor. In the present embodiment, the second signal amplifier 42 constitutes a high power amplifier (HPA).

[0042] The second radio wave radiating section 52 is capable of radiating a second radio wave based on the second high frequency signal amplified by the second signal amplifying section 42. The second radio wave radiating section 52 is, for example, an antenna that radiates a radio wave.

[0043] The second communication unit 82 receives a communication signal. The communication signal is, for example, a serial signal. A communication terminal 82 a is connected to the second communication unit 82. The second communication unit 82 receives the communication signal from the first communication unit 81 of the radio wave emission device 11.

[0044] The second control unit 92 controls the second adjustment unit 32 and the second signal amplification unit 42 .

[0045] The second control unit 92 adjusts the phase of the second high-frequency signal using the phase adjuster 311 of the second adjustment unit 32. For example, the second control unit 92 adjusts the phase of the second high-frequency signal to a phase target value using the second adjustment unit 32. The phase target value is provided by a communication signal from the radio wave emission device 11.

[0046] The second control unit 92 adjusts the power of the second high-frequency signal using the variable amplifier 312 of the second adjustment unit 32. For example, the second control unit 92 refers to a second lookup table indicating the relationship between the output power of the radio wave emission system 1 and the power of the second high-frequency signal, and performs feedback control of the second adjustment unit 32 (variable amplifier 312) so that the power of the second high-frequency signal becomes a power corresponding to a given target value of output power. The target value of the output power of the radio wave emission system 1 is provided by a communication signal from the radio wave emission device 11. In the second lookup table, the target value of the output power of the radio wave emission system 1 and the adjusted value of the power of the second high-frequency signal are appropriately set based on the output power of the second radio wave corresponding to the target value of the output power of the radio wave emission system 1, the number of extended radiation devices 12, and the amplification factor of the second signal amplifier 42. The second lookup table is changed depending on at least one of the number of extended radiation devices 12 and the difference in length between the coaxial cables C1 and C2. As an example, when the lengths of the coaxial cables C1-1 to C1-7 that transmit the second high-frequency signal to the extended radiating device 12 are different, the second lookup table is changed according to the difference in loss in the coaxial cable C1. For example, the second lookup table is changed so that the output powers of the second radio waves are equal to each other, taking into account the difference in loss in the coaxial cable C1. As an example, when the number of extended radiating devices 12 exceeds the upper limit of the adjustment range of the power adjustment unit 22, the second lookup table is changed according to the exceeded number. For example, if the upper limit of the adjustment range of the power adjustment unit 22 is 5 in the current second lookup table, in order to use seven extended radiating devices 12, the second lookup table is changed so that the upper limit of the adjustment range of the power adjustment unit 22 is 7 or more.

[0047] The second control unit 92 may be configured, for example, by a microcontroller having one or more microprocessors and a memory, or may be configured, for example, by a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC).

[0048] The radio wave emission system 1 described above includes a radio wave emission device 11. The radio wave emission device 11 is capable of emitting a first radio wave. Because the radio wave emission device 11 alone can be used to perform pre-installation testing of the radio wave emission system 1, there is no need to use a separate radio wave emission device not used in the radio wave emission system 1 for the pre-test. This reduces implementation costs. By connecting a required number of extended radiation devices 12 to the second output terminals 611-1 to 611-7 of the output section 61 of the radio wave emission device 11, the required number of second radio waves can be combined and emitted in addition to the first radio wave, thereby allowing the output power to be increased as desired. The configuration of the radio wave emission system 1 (the number of extended radiation devices 12) can be easily changed depending on the required output power. This reduces implementation costs.

[0049] Furthermore, in this embodiment, the radio wave emitting device 11 and the extended emitting device 12 have a partially common configuration. Such a partial common configuration can improve the mass productivity of the radio wave emitting system 1, which enables a reduction in the introduction cost of the radio wave emitting system 1.

[0050] Specifically, the radio wave emitting device 11 and the extended emitting device 12 are formed using a common circuit configuration and casing.

[0051] 3 is an explanatory diagram of a circuit configuration 100 common to the radio wave emission device 11 and the extended emission device 12. The circuit configuration 100 shown in FIG. 3 includes an adjustment unit 30, a signal amplification unit 40, a radio wave emission unit 50, a communication unit 80, a control unit 90, and a circuit board 110.

[0052] The adjustment unit 30 adjusts the received high-frequency signal with respect to at least one of the phase and power. The adjustment unit 30 has a configuration similar to that of the first adjustment unit 31 or the second adjustment unit 32. Like the first adjustment unit 31 or the second adjustment unit 32, the adjustment unit 30 includes a phase adjuster 311 and a variable amplifier 312. The adjustment unit 30 is used as the first adjustment unit 31 or the second adjustment unit 32.

[0053] The signal amplifier 40 amplifies the high-frequency signal adjusted by the adjustment unit 30. The signal amplifier 40 has the same configuration as the first signal amplifier 41 or the second signal amplifier 42. The signal amplifier 40 is used as the first signal amplifier 41 or the second signal amplifier 42.

[0054] The radio wave emitting unit 50 is capable of emitting radio waves based on the high-frequency signal amplified by the signal amplifier 40. The radio wave emitting unit 50 has the same configuration as the first radio wave emitting unit 51 or the second radio wave emitting unit 52. The radio wave emitting unit 50 is used as the first radio wave emitting unit 51 or the second radio wave emitting unit 52.

[0055] The communication unit 80 has the same configuration as the first communication unit 81 or the second communication unit 82. The communication unit 80 is used as the first communication unit 81 or the second communication unit 82. The communication terminal 80a connected to the communication unit 80 is also used as the communication terminal 81a or the communication terminal 82a.

[0056] The control unit 90 is configured with a microcontroller having one or more microprocessors and memories, similar to the first control unit 91 or the second control unit 92. The control unit 90 is programmed to operate as the first control unit 91 or the second control unit 92, for example.

[0057] The circuit board 110 includes a first mounting region R1, second mounting regions R21 and R22, a third mounting region R3, and a fourth mounting region R4.

[0058] The first mounting region R1 is a region on the circuit board 110 in which at least a portion of the signal generating unit 2 can be mounted. As described above, the signal generating unit 2 includes the oscillator circuit 21, the power adjusting unit 22, and the divider 23, and the first mounting region R1 is configured to be able to mount all of the oscillator circuit 21, the power adjusting unit 22, and the divider 23 of the signal generating unit 2. The first mounting region R1 includes spaces for arranging the oscillator circuit 21, the power adjusting unit 22, and the divider 23, and also includes conductor patterns for electrically connecting the oscillator circuit 21, the power adjusting unit 22, and the divider 23 as necessary.

[0059] The second mounting regions R21, R22 are regions on the circuit board 110 in which at least one of an output unit 61 having one or more output terminals 611 connectable to a coaxial cable and an input unit 70 connectable to a coaxial cable can be mounted. The second mounting region R21 corresponds to the output unit 61. The second mounting region R21 includes a space for arranging the output unit 61 and, if necessary, includes a conductor pattern for electrical connection with the output unit 61. The second mounting region R22 corresponds to the input unit 70. The second mounting region R22 includes a space for arranging the input unit 70 and, if necessary, includes a conductor pattern for electrical connection with the input unit 70.

[0060] The third mounting region R3 is a region on the circuit board 110 in which the adjustment unit 30, the signal amplification unit 40, and the radio wave emission unit 50 can be mounted. The third mounting region R3 includes spaces for arranging the adjustment unit 30, the signal amplification unit 40, and the radio wave emission unit 50, and also includes conductor patterns for electrically connecting the adjustment unit 30, the signal amplification unit 40, and the radio wave emission unit 50 as necessary.

[0061] The fourth mounting region R4 is a region on the circuit board 110 in which the communication unit 80, the communication terminals 80a, and the control unit 90 can be mounted. The fourth mounting region R4 includes spaces for arranging the communication unit 80, the communication terminals 80a, and the control unit 90, and also includes a conductor pattern for electrically connecting the communication unit 80, the communication terminals 80a, and the control unit 90 as necessary.

[0062] The circuit board 110 includes regions for forming the first transmission path P1, the second transmission path P2, and the third transmission path P3. The first transmission path P1 connects the power adjustment unit 22 to the input terminal 231 of the divider 23. The second transmission path P2 connects the input unit 70 to the adjustment unit 30. The third transmission path P3 connects the power adjustment unit 22 to the adjustment unit 30. Only one of the first transmission path P1 and the third transmission path P3 is available. Only one of the second transmission path P2 and the third transmission path P3 is available. The first transmission path P1, the second transmission path P2, and the third transmission path P3 may be conductor patterns formed on the circuit board 110, or may be configured using circuit elements such as short-circuit resistors. The first transmission path P1, the second transmission path P2, and the third transmission path P3 may be formed on the circuit board 110 in advance and then blocked to prevent them from functioning if they are not needed, or they may be formed on the circuit board 110 afterward.

[0063] In the circuit configuration 100, the adjustment unit 30, the signal amplifier 40, and the radio wave emitter 50 may be pre-mounted in the third mounting region R3. The communication unit 80, the communication terminal 80a, and the control unit 90 may be pre-mounted in the fourth mounting region R4.

[0064] On the other hand, the components mounted in the first mounting region R1 and the second mounting regions R21 and R22 differ between the radio wave emitting device 11 and the extended emitting device 12.

[0065] Fig. 4 is an explanatory diagram of the radio wave emitting device 11. The radio wave emitting device 11 is formed using the common circuit configuration 100 shown in Fig. 3. In the case of the radio wave emitting device 11, the adjustment unit 30, the signal amplification unit 40, the radio wave emitting unit 50, the communication unit 80, the communication terminal 80a, and the control unit 90 of the circuit board 110 are used as a first adjustment unit 31, a first signal amplification unit 41, a first radio wave emitting unit 51, a first communication unit 81, a communication terminal 81a, and a first control unit 91.

[0066] To form the radio wave emitting device 11, the signal generating unit 2, the output unit 61, and the input unit 70 (first input unit 71) are further mounted on the circuit board 110. More specifically, the oscillator circuit 21 of the signal generating unit 2, the power adjustment unit 22, and the distributor 23 are all mounted in the first mounting region R1. The output unit 61 and the input unit 70 used as the first input unit 71 are both mounted in the second mounting regions R21 and R22. The radio wave emitting device 11 uses a first transmission path P1 and a second transmission path P2.

[0067] 4 , the oscillator circuit 21 is connected to the divider 23 via the power adjustment unit 22 and the first transmission path P1, and the divider 23 outputs a plurality of high-frequency signals to the output unit 61. The output unit 61 outputs a plurality of high-frequency signals generated by the signal generating unit 2 from a plurality of output terminals 611, respectively. The first input unit 71 is connected to one of the plurality of output terminals 611 of the output unit 61 via a coaxial cable C2, and one of the plurality of high-frequency signals is input thereto. The first adjustment unit 31 is connected to the first input unit 71 via the second transmission path P2 so as to receive the high-frequency signal input to the first input unit 71.

[0068] In this manner, the radio wave emitting device 11 is formed using the circuit configuration 100 .

[0069] FIG. 5 is a perspective view of the radio wave emission device 11. The radio wave emission device 11 has a first casing 210. The first casing 210 houses the circuit board 110. That is, the first casing 210 houses at least a portion (in this embodiment, the entirety) of the signal generating unit 2, the first adjustment unit 31, the first signal amplifier 41, the first radio wave emission unit 51, and the output unit 61. The first casing 210 also houses the first input unit 71, the first communication unit 81, and the first control unit 91. In FIG. 5, the first casing 210 has a rectangular parallelepiped shape. The first radio wave emission unit 51, the output unit 61, and the first input unit 71 are located on different sides of the first casing 210. The first casing 210 may have a cooling structure. Examples of the cooling structure include heat dissipation fins for air cooling and a base plate for water cooling. Providing a cooling structure makes it possible to cool circuit elements (for example, the first signal amplifier 41) mounted on the circuit board 110 that are prone to becoming hot.

[0070] In the radio wave emission device 11, the first high-frequency signal is input from the signal generating unit 2 to the first adjustment unit 31 via the outside of the first casing 210, and one or more second high-frequency signals are input from the signal generating unit 2 to the output unit 61 within the first casing 210.

[0071] Fig. 6 is an explanatory diagram of the extended radiation device 12. The extended radiation device 12 is formed using the common circuit configuration 100 shown in Fig. 3. In the case of the extended radiation device 12, the adjustment unit 30, the signal amplification unit 40, the radio wave radiation unit 50, the communication unit 80, the communication terminal 80a, and the control unit 90 of the circuit board 110 are used as a second adjustment unit 32, a second signal amplification unit 42, a second radio wave radiation unit 52, a second communication unit 82, a communication terminal 82a, and a second control unit 92.

[0072] When forming the extended radiating device 12, an input unit 70 (second input unit 72) is further mounted on the circuit board 110. More specifically, the signal generating unit 2 is not mounted in the first mounting region R1. The output unit 61 is not mounted in the second mounting regions R21 and R22, and only the input unit 70 used as the second input unit 72 is mounted. In the extended radiating device 12, a second transmission path P2 is used.

[0073] In FIG. 6, the second adjustment unit 32 is connected to the second input unit 72 via a second transmission path P2 so as to receive the high-frequency signal input to the second input unit 72.

[0074] In this manner, the circuit configuration 100 is used to form the extended radiating device 12 .

[0075] FIG. 7 is a perspective view of the extended radiating device 12. The extended radiating device 12 includes a second casing 220. The second casing 220 houses the circuit board 110. Specifically, the second casing 220 houses the second adjustment unit 32, the second signal amplifier 42, the second radio wave radiating unit 52, and the second input unit 72. The second casing 220 also houses the second communication unit 82 and the second control unit 92. In FIG. 7, the second casing 220 is rectangular. The second radio wave radiating unit 52 and the second input unit 72 are located on different sides of the second casing 220. The second casing 220 may include a cooling structure. Examples of the cooling structure include heat dissipation fins for air cooling and a base plate for water cooling. The cooling structure allows cooling of circuit elements (e.g., the second signal amplifier 42) mounted on the circuit board 110 that tend to become hot.

[0076] The second casing 220 houses the circuit board 110, just like the first casing 210. Therefore, the first casing 210 and the second casing 220 may have the same shape and dimensions. This makes it possible to use the same mold for manufacturing the first casing 210 and the second casing 220, thereby reducing the manufacturing costs of the first casing 210 and the second casing 220.

[0077] The radio wave emitting device 11 and the extended emitting device 12 described above are basically not used alone, but are master or slave type radio wave emitting devices intended for use in the radio wave emitting system 1. In addition to master or slave type radio wave emitting devices, radio wave emitting devices may also be standalone type radio wave emitting devices intended for use alone (hereinafter referred to as standalone emitting devices). The circuit configuration 100 can also be used to form a standalone emitting device.

[0078] 8 is an explanatory diagram of the single radiating device 13. The single radiating device 13 is formed using the common circuit configuration 100 shown in FIG.

[0079] Unlike the radio wave emitting device 11, the independent emitting device 13 does not need to generate multiple high-frequency signals with the same frequency band and phase. Instead, it is sufficient to generate a single high-frequency signal. In the signal generating unit 2 of the radio wave emitting device 11, the divider 23 outputs multiple high-frequency signals based on a reference high-frequency signal generated by the oscillator circuit 21. If the divider 23 is not used, the reference high-frequency signal generated by the oscillator circuit 21 can be used as a single high-frequency signal. In other words, the oscillator circuit 21, the power adjusting unit 22, and the divider 23 constitute a first signal generating unit (signal generating unit 2) that generates multiple high-frequency signals with the same frequency band and phase, and the oscillator circuit 21 and the power adjusting unit 22 constitute a second signal generating unit 2a that generates a single high-frequency signal. From this perspective, at least a portion of the first signal generating unit 2 or the second signal generating unit 2a can be mounted in the first mounting region R1.

[0080] Therefore, when forming the individual radiating device 13, a second signal generating unit 2a (oscillating circuit 21) is further mounted on the circuit board 110. More specifically, the oscillator circuit 21 is mounted in the first mounting region R1. Neither the output unit 61 nor the input unit 70 is mounted in the second mounting regions R21 and R22. The individual radiating device 13 utilizes a third transmission path P3.

[0081] In the case of the single radiation device 13, the adjustment unit 30, signal amplification unit 40, radio wave radiation unit 50, communication unit 80, communication terminal 80a, and control unit 90 of the circuit configuration 100 are used as a third adjustment unit 33, a third signal amplification unit 43, a third radio wave radiation unit 53, a third communication unit 83, a communication terminal 83a, and a third control unit 93.

[0082] 8, the oscillator circuit 21 is connected to the third adjustment unit 33 via the third transmission path P3. As a result, the third adjustment unit 33 is connected to the second signal generating unit 2a so as to receive the single high-frequency signal generated by the second signal generating unit 2a.

[0083] The third adjustment unit 33 adjusts at least one of the phase and power of the high frequency signal from the second signal generating unit 2 a. Unlike the first adjustment unit 31 or the second adjustment unit 32, the third adjustment unit 33 includes only a variable amplifier 312.

[0084] The third signal amplifier 43 is a signal amplifier that amplifies the high-frequency signal adjusted by the third adjustment unit 33. Similar to the first signal amplifier 41 or the second signal amplifier 42, the third signal amplifier 43 may have one or more amplifiers. At least one of the one or more amplifiers may include a transistor. In the present embodiment, the third signal amplifier 43 constitutes a high power amplifier (HPA).

[0085] The third radio wave emitting section 53 is capable of emitting a third radio wave based on the high frequency signal amplified by the third signal amplifier 43. The third radio wave emitting section 53 is, for example, an antenna that radiates a radio wave.

[0086] The third communication unit 83 receives a communication signal. The communication signal is, for example, a serial signal. A communication terminal 83 a is connected to the third communication unit 83. The third communication unit 83 receives the communication signal from, for example, an external device.

[0087] The third control unit 93 controls the second signal generating unit 2 a, the third adjusting unit 33 and the third signal amplifying unit 43 .

[0088] The third control unit 93 adjusts the power of the high-frequency signal using the variable amplifier 312 of the third adjustment unit 33. For example, the third control unit 93 references a third lookup table that indicates the relationship between the output power of the third radio wave and the power of the high-frequency signal, and controls the third adjustment unit 33 (variable amplifier 312) so that the power of the high-frequency signal becomes a power that corresponds to a given target value of output power. The target value of the output power of the third radio wave is provided by a communication signal from an external device. In the third lookup table, the target value of the output power of the third radio wave and the adjustment value of the power of the high-frequency signal are set as appropriate based on the amplification factor of the third signal amplifier 43.

[0089] In this manner, the circuit configuration 100 is used to form a single radiating device 13 .

[0090] FIG. 9 is a perspective view of the single radiation device 13. The single radiation device 13 has a fourth casing 230. The fourth casing 230 houses the circuit board 110. That is, the fourth casing 230 houses the second signal generating unit 2a, the third adjustment unit 33, the third signal amplifier 43, and the third radio wave emitting unit 53. The fourth casing 230 also houses the third communication unit 83 and the third control unit 93. In FIG. 9, the fourth casing 230 is rectangular parallelepiped-shaped. The third radio wave emitting unit 53 is located on one side of the fourth casing 230. The fourth casing 230 may have a cooling structure. Examples of the cooling structure include heat dissipation fins for air cooling and a base plate for water cooling. The cooling structure enables cooling of circuit elements mounted on the circuit board 110 that tend to become hot (e.g., the third signal amplifier 43).

[0091] The fourth casing 230 houses the circuit board 110, similar to the first casing 210 and the second casing 220. Therefore, the first casing 210, the second casing 220, and the fourth casing 230 may have the same shape and dimensions. This makes it possible to use the same mold for manufacturing the first casing 210, the second casing 220, and the fourth casing 230, thereby reducing the manufacturing costs of the first casing 210, the second casing 220, and the fourth casing 230.

[0092] As described above, radio wave emitting devices are classified into three functional types: master type, slave type, and standalone type. Each of these three functional types of radio wave emitting devices has a similar circuit configuration 100. The radio wave emitting system 1 uses two simple configurations: a master type radio wave emitting device and a slave type radio wave emitting device. In product production, the standalone type radio wave emitting device operates singly as a module using the same mechanism and circuit structure, while the master type and slave type radio wave emitting devices are used in multiple applications. By standardizing these devices, mass merit can be leveraged, enabling efficient modularization for mass production and reducing manufacturing costs. Furthermore, the compact modular structure of the product allows for flexible layout and placement in factory equipment. It also facilitates scalability and the easy addition of modules to accommodate specification changes after installation, shortening the equipment development schedule and reducing backtracking. In particular, the master type and slave type radio wave emitting devices used in the radio wave emitting system facilitate the construction of a multi-system from the development stage, allowing the same product to be used from pre-verification to final setup. Therefore, the radio wave emitting devices (radio wave emitting device 11, extended radiating device 12, and single radiating device 13) and the radio wave emitting system 1 according to this embodiment are highly suitable for mass production and have a cost reduction effect.

[0093] [1.1.2 Effects, etc.] The radio wave emission system 1 described above includes a radio wave emission device 11 and one or more extended emission devices 12. The radio wave emission device 11 includes a signal generating unit 2 that generates a plurality of high-frequency signals having the same frequency band and phase, a first adjustment unit 31 that adjusts at least one of the phase and power of a first high-frequency signal among the plurality of high-frequency signals, a first signal amplification unit 41 that amplifies the first high-frequency signal adjusted by the first adjustment unit 31, a first radio wave emission unit 51 that can emit a first radio wave based on the first high-frequency signal amplified by the first signal amplification unit 41, and an output unit 61 that has one or more output terminals 611 connectable to coaxial cables C1, C2 and outputs one or more second high-frequency signals different from the first high-frequency signal among the plurality of high-frequency signals from one or more second output terminals 611-1 to 611-7 of the one or more output terminals 611. Each of the one or more extended radiating devices 12 includes a second input unit 72 connected to one of the one or more second output terminals 611-1 to 611-7 via coaxial cables C1-1 to C1-7 and receiving one of the one or more second high-frequency signals, a second adjustment unit 32 that adjusts the second high-frequency signal input to the second input unit 72 with respect to at least one of the phase and power, a second signal amplification unit 42 that amplifies the second high-frequency signal adjusted by the second adjustment unit 32, and a second radio wave radiating unit 52 that can radiate a second radio wave based on the second high-frequency signal amplified by the second signal amplification unit 42. This configuration enables a reduction in implementation costs.

[0094] In the radio wave emission system 1 described above, the radio wave emission device 11 includes a first casing 210 that houses at least a part of the signal generating unit 2, the first adjustment unit 31, the first signal amplification unit 41, the first radio wave emission unit 51, and the output unit 61. Each of the one or more extended emission devices 12 includes a second casing 220 that houses the second input unit 72, the second adjustment unit 32, the second signal amplification unit 42, and the second radio wave emission unit 52. This configuration enables a reduction in implementation costs.

[0095] In the radio wave emission system 1 described above, the signal generating unit 2 includes an oscillator circuit 21 that generates a reference high-frequency signal, and a divider 23 that outputs a plurality of high-frequency signals by equally dividing the reference high-frequency signal. This configuration enables the configuration of the signal generating unit 2 to be simplified.

[0096] In the radio wave emission system 1 described above, the first casing 210 houses the signal generating unit 2, the first adjusting unit 31, the first signal amplifying unit 41, the first radio wave emitting unit 51, and the output unit 61. This configuration makes it easy to handle the radio wave emission device 11 and enables reduction in introduction costs.

[0097] In the radio wave emission system 1 described above, the radio wave emission device 11 includes a power adjustment unit 22 for adjusting the power of the reference radio frequency signal based on the number of multiple radio frequency signals so that the power of each of the multiple radio frequency signals becomes a predetermined power. This configuration can reduce the influence of a decrease in power due to the number of extended emission devices 12.

[0098] In the radio wave emission system 1 described above, the radio wave emission device 11 includes a first control unit 91 that controls the first adjustment unit 31. The first control unit 91 references a first lookup table showing the relationship between the output power of the radio wave emission system 1 and the power of the first high-frequency signal, and performs feedback control of the first adjustment unit 31 so that the power of the first high-frequency signal corresponds to a given target output power value. Each of the one or more extended emission devices 12 includes a second control unit 92 that controls the second adjustment unit 32. The second control unit 92 references a second lookup table showing the relationship between the output power and the power of the second high-frequency signal, and performs feedback control of the second adjustment unit 32 so that the power of the second high-frequency signal corresponds to a given target output power value. The first lookup table and the second lookup table are changed depending on at least one of the number of the one or more extended emission devices 12 and the difference in length between the multiple coaxial cables C1 and C2 connected to the multiple output terminals 611 of the output unit 61. This configuration enables improved accuracy in setting the output power of the radio wave emission system 1.

[0099] In the radio wave emission system 1 described above, the lengths of the multiple coaxial cables C1, C2 connected to the multiple output terminals 611 of the output unit 61 are equal to each other. This configuration makes it possible to reduce the phase shift of the high frequency signal caused by the coaxial cables C1, C2.

[0100] In the radio wave emission system 1 described above, the radio wave emission device 11 includes a first communication unit 81 that transmits a communication signal, and each of the one or more extended emission devices 12 includes a second communication unit 82 that receives the communication signal, and in each of the one or more extended emission devices 12, the second adjustment unit 32 adjusts the second high-frequency signal based on the communication signal received by the second communication unit 82. This configuration can adjust at least one of the phase and power of the second high-frequency signal to match the first high-frequency signal.

[0101] The radio wave emission device 11 described above comprises: a signal generating unit 2 to which one or more extended emission devices 12 can be connected, and which generates a plurality of high-frequency signals having the same frequency band and phase; a first adjustment unit 31 which adjusts a first high-frequency signal of the plurality of high-frequency signals in terms of at least one of phase and power; a first signal amplification unit 41 which amplifies the first high-frequency signal adjusted by the first adjustment unit 31; a first radio wave emission unit 51 which enables emission of a first radio wave based on the first high-frequency signal amplified by the first signal amplification unit 41; and an output unit 61 which has one or more output terminals 611 connectable to coaxial cables C1, C2, and which outputs one or more second high-frequency signals different from the first high-frequency signal of the plurality of high-frequency signals from one or more second output terminals 611-1 to 611-7 of the one or more output terminals 611, respectively. Each of the one or more extended radiating devices 12 includes a second input unit 72 connected to one of the one or more second output terminals 611-1 to 611-7 via coaxial cables C1-1 to C1-7 and receiving one of the one or more second high-frequency signals, a second adjustment unit 32 that adjusts the second high-frequency signal input to the second input unit 72 with respect to at least one of the phase and power, a second signal amplification unit 42 that amplifies the second high-frequency signal adjusted by the second adjustment unit 32, and a second radio wave radiating unit 52 that can radiate a second radio wave based on the second high-frequency signal amplified by the second signal amplification unit 42. This configuration enables a reduction in implementation costs.

[0102] The radio wave emitting devices (radio wave emitting device 11, extended radiating device 12, and single radiating device 13) described above include an adjustment unit 30 that adjusts at least one of the phase and power of a received high-frequency signal, a signal amplifier 40 that amplifies the high-frequency signal adjusted by the adjustment unit 30, a radio wave emitting unit 50 that enables radio waves to be emitted based on the high-frequency signal amplified by the signal amplifier 40, and one or more circuit boards 110 on which the adjustment unit 30, the signal amplifier 40, and the radio wave emitting unit 50 are mounted. The one or more circuit boards 110 include a first mounting region R1 that can mount at least a portion of a first signal generating unit 2 that generates multiple high-frequency signals having the same frequency band and phase, or a second signal generating unit 2a that generates a single high-frequency signal, and second mounting regions R21, R22 that can mount at least one of an output unit 61 having one or more output terminals 611 connectable to coaxial cables C1, C2, and an input unit 70 connectable to the coaxial cables C1, C2. This configuration enables reduction in implementation costs.

[0103] In the radio wave emission device (radio wave emission device 11) described above, at least a part of the first signal generating unit (signal generating unit 2) is mounted in the first mounting region R1, and both the output unit 61 and the input unit 70 are mounted in the second mounting regions R21, R22, the output unit 61 outputs a plurality of high-frequency signals generated by the first signal generating unit (signal generating unit 2) from a plurality of output terminals 611, respectively, the input unit 70 is connected to one of the plurality of output terminals 611 of the output unit 61 via a coaxial cable C2 and receives one of the plurality of high-frequency signals as input, and the adjustment unit 30 is connected to the input unit 70 so as to receive the high-frequency signal input to the input unit 70. With this configuration, a master-type radio wave emission device can be easily obtained.

[0104] In the radio wave emitting device (single emitting device 13) described above, the second signal generating unit 2a is mounted in the first mounting region R1, neither the output unit 61 nor the input unit 70 is mounted in the second mounting regions R21, R22, and the adjustment unit 30 is connected to the second signal generating unit 2a so as to receive the single high-frequency signal generated by the second signal generating unit 2a. With this configuration, a standalone radio wave emitting device can be easily obtained.

[0105] In the radio wave emission device (extended emission device 12) described above, neither the first signal generating unit 2 nor the second signal generating unit 2a is mounted in the first mounting region R1, but the input unit 70 is mounted in the second mounting regions R21 and R22, and the adjustment unit 30 is connected to the input unit 70 so as to receive the high-frequency signal input to the input unit 70. With this configuration, a slave-type radio wave emission device can be easily obtained.

[0106] [1.2 Second Embodiment] [1.2.1 Configuration] Fig. 10 is a schematic diagram of a radio wave emission system 1A according to a second embodiment. The radio wave emission system 1A includes a radio wave emission device 11A and one or more extended radiation devices 12A (12A-1 to 12A-7). Seven extended radiation devices 12A-1 to 12A-7 are illustrated in Fig. 10. In the radio wave emission system 1A, the maximum output of radio waves that can be emitted from the radio wave emission system 1A can be changed by changing the number of extended radiation devices 12A.

[0107] FIG. 11 is a block diagram of a radio wave emission system 1A according to the second embodiment.

[0108] The radio wave emitting device 11A includes a signal generating unit 2, a first adjusting unit 31, a first signal amplifying unit 41, a first radio wave emitting unit 51, an output unit 61A, a first communication unit 81, and a first control unit 91.

[0109] The first adjustment unit 31 is connected to the signal generating unit 2 so as to receive one (first high-frequency signal) of the multiple high-frequency signals generated by the signal generating unit 2. More specifically, the first adjustment unit 31 is connected to the output terminal 232-8 of the distributor 23.

[0110] The output unit 61A has a plurality of output terminals 611 (611-1 to 611-7). The output terminals 611-1 to 611-7 are connected to the plurality of output terminals 232-1 to 232-7 of the distributor 23, respectively. The output unit 61A does not have an output terminal 611-8 used as a first output terminal for outputting a first high-frequency signal, but has output terminals 611-1 to 611-7 used as second output terminals for outputting a second high-frequency signal. In this way, the output unit 61A outputs one or more second high-frequency signals from one or more second output terminals 611-1 to 611-7 of the plurality of output terminals 611, respectively.

[0111] Similar to the extended radiation device 12, the extended radiation device 12A includes a second adjustment unit 32, a second signal amplification unit 42, a second radio wave radiation unit 52, a second input unit 72, a second communication unit 82, and a second control unit 92.

[0112] In this embodiment, the radio wave emitting device 11A and the extended emitting device 12A are formed using a common circuit configuration and casing.

[0113] Fig. 12 is an explanatory diagram of a circuit configuration 100A common to the radio wave emission device 11A and the extended emission device 12A. The circuit configuration 100A shown in Fig. 12 includes an adjustment unit 30, a signal amplification unit 40, a radio wave emission unit 50, a communication unit 80, a control unit 90, and a circuit board 110A.

[0114] The circuit board 110A includes a first mounting region R1, second mounting regions R21A and R22, a third mounting region R3, and a fourth mounting region R4.

[0115] The second mounting regions R21A and R22 are regions on the circuit board 110 where at least one of an output unit 61A having one or more output terminals 611 connectable to a coaxial cable and an input unit 70 connectable to a coaxial cable can be mounted. The second mounting region R21A corresponds to the output unit 61A.

[0116] The circuit board 110A includes an area for forming a fourth transmission path P4 in addition to the first transmission path P1, the second transmission path P2, and the third transmission path P3. The fourth transmission path P4 connects one of the output terminals 232 of the distributor 23 to the adjustment unit 30. Only one of the first transmission path P1 and the third transmission path P3 is available. Only one of the second transmission path P2, the third transmission path P3, and the fourth transmission path P4 is available. The fourth transmission path P4 may be a conductor pattern formed on the circuit board 110A, or may be configured using a circuit element such as a short-circuit resistor. The fourth transmission path P4 may be formed on the circuit board 110A in advance and then blocked to prevent its function if unnecessary, or may be formed on the circuit board 110A afterward. When the high-frequency signal is connected to the adjustment unit 30 via the fourth transmission path P4, the electrical length of the transmission path connecting the high-frequency signal is significantly different from the transmission path input to the extended radiation device 12A. Therefore, it is preferable to correct the phase versus frequency characteristics for the frequency band of the extended radiation device 12A using the fourth transmission path P4 and a coaxial cable by the phase adjuster 311 of the radio wave radiation device 11A or the phase adjuster 311 of the extended radiation device 12A.

[0117] Fig. 13 is an explanatory diagram of the radio wave emission device 11A. The radio wave emission device 11A is formed using the common circuit configuration 100A shown in Fig. 12. In the case of the radio wave emission device 11A, the adjustment unit 30, signal amplification unit 40, radio wave emission unit 50, communication unit 80, communication terminal 80a, and control unit 90 of the circuit board 110A are used as a first adjustment unit 31, a first signal amplification unit 41, a first radio wave emission unit 51, a first communication unit 81, a communication terminal 81a, and a first control unit 91.

[0118] To form the radio wave emission device 11A, the signal generating unit 2 and the output unit 61A are further mounted on the circuit board 110A. More specifically, the oscillator circuit 21 of the signal generating unit 2, the power adjustment unit 22, and the distributor 23 are all mounted in the first mounting region R1. The output unit 61A is mounted in the second mounting region R21A. The radio wave emission device 11A uses the first transmission path P1 and the fourth transmission path P4.

[0119] 13 , the oscillator circuit 21 is connected to the divider 23 via the power adjustment unit 22 and the first transmission path P1, one of the output terminals 232 of the divider 23 is connected to the adjustment unit 30 via the fourth transmission path P4, and the remaining is connected to the output unit 61A. That is, the adjustment unit 30 is connected to the signal generating unit 2 so as to receive one of the plurality of high-frequency signals generated by the signal generating unit 2. The output unit 61A is connected to the signal generating unit 2 so as to output one or more of the remaining high-frequency signals of the plurality of high-frequency signals generated by the signal generating unit 2 from one or more output terminals 611-1 to 611-7 of the plurality of output terminals 611, respectively.

[0120] In this manner, the radio wave emitting device 11A is formed using the circuit configuration 100A.

[0121] FIG. 14 is a perspective view of the radio wave emission device 11A. The radio wave emission device 11A has a first casing 210A. The first casing 210A houses the circuit board 110A. That is, the first casing 210A houses at least a portion (in this embodiment, the entirety) of the signal generating unit 2, the first adjustment unit 31, the first signal amplifier 41, the first radio wave emission unit 51, and the output unit 61A. The first casing 210A also houses the first communication unit 81 and the first control unit 91. In FIG. 14, the first casing 210A has a rectangular parallelepiped shape. The first radio wave emission unit 51 and the output unit 61A are located on different sides of the first casing 210A. The first casing 210A may be provided with a cooling structure. Examples of the cooling structure include heat dissipation fins for air cooling and a base plate for water cooling. Providing a cooling structure makes it possible to cool circuit elements (for example, the first signal amplifier 41) mounted on the circuit board 110A that are prone to becoming hot.

[0122] In the radio wave emission device 11A, a first high-frequency signal is input from the signal generating unit 2 to the first adjustment unit 31 within the first casing 210A, and one or more second high-frequency signals are input from the signal generating unit 2 to the output unit 61A within the first casing 210A.

[0123] Fig. 15 is an explanatory diagram of an extended radiation device 12A. The extended radiation device 12A is formed using the common circuit configuration 100A shown in Fig. 12. In the case of the extended radiation device 12A, the adjustment unit 30, the signal amplification unit 40, the radio wave radiation unit 50, the communication unit 80, the communication terminal 80a, and the control unit 90 of the circuit board 110A are used as a second adjustment unit 32, a second signal amplification unit 42, a second radio wave radiation unit 52, a second communication unit 82, a communication terminal 82a, and a second control unit 92.

[0124] When forming the extended radiating device 12A, an input unit 70 (second input unit 72) is further mounted on the circuit board 110A. More specifically, the signal generating unit 2 is not mounted in the first mounting region R1. The output unit 61A is not mounted in the second mounting regions R21A and R22, and only the input unit 70 used as the second input unit 72 is mounted. The extended radiating device 12A uses a second transmission path P2.

[0125] In FIG. 15, the second adjustment unit 32 is connected to the second input unit 72 via a second transmission path P2 so as to receive the high-frequency signal input to the second input unit 72.

[0126] In this manner, circuit configuration 100A is used to form extended radiating device 12A.

[0127] The extended radiating device 12A has a second casing 220 similar to that of the extended radiating device 12. The second casing 220 houses the circuit board 110A, similar to the first casing 210A. Therefore, the first casing 210A and the second casing 220 may have the same shape and dimensions. This allows for a reduction in manufacturing costs for the first casing 210A and the second casing 220. As described above, the second casing 220 may include a cooling structure.

[0128] Circuit configuration 100A can also be used to form a standalone radiating device.

[0129] 16 is an explanatory diagram of a single radiating device 13A. The single radiating device 13A is formed using the common circuit configuration 100A shown in FIG.

[0130] When forming the single radiating device 13A, the second signal generating unit 2a (oscillating circuit 21) is mounted in the first mounting region R1. Neither the output unit 61A nor the input unit 70 is mounted in the second mounting regions R21A and R22. The single radiating device 13A utilizes the third transmission path P3.

[0131] In the case of the single radiation device 13A, the adjustment unit 30, signal amplification unit 40, radio wave radiation unit 50, communication unit 80, communication terminal 80a, and control unit 90 of the circuit configuration 100A are used as a third adjustment unit 33, a third signal amplification unit 43, a third radio wave radiation unit 53, a third communication unit 83, a communication terminal 83a, and a third control unit 93.

[0132] 16, the oscillator circuit 21 is connected to the third adjustment unit 33 via the third transmission path P3. As a result, the third adjustment unit 33 is connected to the second signal generating unit 2a so as to receive the single high-frequency signal generated by the second signal generating unit 2a.

[0133] In this manner, circuit configuration 100A is used to form a single radiating device 13A.

[0134] The single radiating device 13A has a fourth casing 230 similar to that of the single radiating device 13. The fourth casing 230 houses the circuit board 110A, similar to the first casing 210A and the second casing 220. Therefore, the first casing 210A, the second casing 220, and the fourth casing 230 may have the same shape and dimensions. This allows for a reduction in manufacturing costs for the first casing 210A, the second casing 220, and the fourth casing 230. As described above, the fourth casing 230 may be provided with a cooling structure.

[0135] [1.2.2 Effects, etc.] In the radio wave emission system 1A described above, the first high-frequency signal is input from the signal generating unit 2 to the first adjustment unit 31 inside the first casing 210, and one or more second high-frequency signals are input from the signal generating unit 2 to the output unit 61A inside the first casing 210. This configuration eliminates the need for the coaxial cable C2 for inputting the first high-frequency signal from the signal generating unit 2 to the first adjustment unit 31, thereby reducing costs.

[0136] In the radio wave emission device 11A described above, at least a part of the first signal generating unit (signal generating unit 2) is mounted in the first mounting region R1, the output unit 61A is mounted in the second mounting regions R21A and R22, the adjustment unit 30 is connected to the first signal generating unit (signal generating unit 2) to receive one of the multiple high-frequency signals generated by the first signal generating unit (signal generating unit 2), and the output unit 61A is connected to the first signal generating unit (signal generating unit 2) to output one or more of the remaining multiple high-frequency signals generated by the first signal generating unit (signal generating unit 2) from one or more output terminals 611-1 to 611-7, respectively, of the multiple output terminals 611. This configuration eliminates the need for a coaxial cable C2 for inputting the high-frequency signals from the first signal generating unit (signal generating unit 2) to the adjustment unit 30, thereby reducing costs.

[0137] 17 is a schematic diagram of a radio wave emission system 1B according to a third embodiment. The radio wave emission system 1B includes a radio wave emission device 11B and one or more extended radiation devices 12B (12B-1 to 12B-7). In the radio wave emission system 1B, the maximum output of radio waves that can be emitted from the radio wave emission system 1B can be changed by changing the number of extended radiation devices 12B.

[0138] The radio wave emitting device 11B includes a main body 111B and a distribution section 112B that is separate from the main body 111B.

[0139] FIG. 18 is a block diagram of a radio wave emission system 1B according to the third embodiment.

[0140] The radio wave emitting device 11B includes a signal generating unit 2, a first adjustment unit 31, a first signal amplifier 41, a first radio wave emitting unit 51, an output unit 61, a first input unit 71, a first communication unit 81, a first control unit 91, a second output unit 62, and a third input unit 73.

[0141] A part of the signal generating unit 2 is in the main body 111B, and another part of the signal generating unit 2 is in the distributor 112B. Of the oscillator circuit 21, power adjustment unit 22, and distributor 23 that constitute the signal generating unit 2, a part of the signal generating unit 2 is the oscillator circuit 21 and the power adjustment unit 22, and another part of the signal generating unit 2 is the distributor 23.

[0142] The main body 111B includes the oscillator circuit 21 and power adjustment unit 22 of the signal generating unit 2, a first adjustment unit 31, a first signal amplification unit 41, a first radio wave emission unit 51, a first input unit 71, a first communication unit 81, a first control unit 91, and a second output unit 62.

[0143] The second output section 62 can be connected to a coaxial cable and is connected to the power adjustment section 22 to output the reference high-frequency signal adjusted by the power adjustment section 22.

[0144] The distributor 112B includes the distributor 23 of the signal generating unit 2 , the output unit 61 , and the third input unit 73 .

[0145] The third input unit 73 can be connected to a coaxial cable. The third input unit 73 is connected to the second output unit 62 via the coaxial cable C3. Therefore, a reference high-frequency signal is input to the third input unit 73. The third input unit 73 is connected to the input terminal 231 of the divider 23, and inputs the received reference high-frequency signal to the input terminal 231 of the divider 23.

[0146] In the radio wave emission device 11B, the main body 111B has the function of generating a reference high-frequency signal and the function of enabling the emission of a first radio wave based on a first high-frequency signal, and the distribution unit 112B has the function of outputting multiple high-frequency signals (a first high-frequency signal and one or more second high-frequency signals) based on the reference high-frequency signal.

[0147] In the radio wave emission device 11B, the main body 111B that enables emission of the first radio wave and the distribution unit 112B that outputs multiple high-frequency signals can be arranged separately. This allows for improved flexibility in the arrangement of the radio wave emission system 1B. In particular, when the area around the main body 111B is small, arranging the distribution unit 112B in a larger area makes it easier to connect the extended radiation device 12B. This simplifies the installation work of the radio wave emission system 1B. Furthermore, by separating the main body 111B and the distribution unit 112B, restrictions on the physical size of the casing of the radio wave emission device 11B are eliminated, allowing for maximum expansion.

[0148] Like the extended radiation device 12, the extended radiation device 12B includes a second adjustment unit 32, a second signal amplification unit 42, a second radio wave radiation unit 52, a second input unit 72, a second communication unit 82, and a second control unit 92.

[0149] In this embodiment, the radio wave emitting device 11B and the extended emitting device 12B are formed using a common circuit configuration and casing.

[0150] Fig. 19 is an explanatory diagram of a circuit configuration 100B common to the radio wave emission device 11B and the extended emission device 12B. The circuit configuration 100B is used in the main body 111B of the radio wave emission device 11B. The circuit configuration 100B shown in Fig. 19 includes an adjustment unit 30, a signal amplification unit 40, a radio wave emission unit 50, a communication unit 80, a control unit 90, and a circuit board 110B.

[0151] The circuit board 110B includes a first mounting region R1B, second mounting regions R21B and R22, a third mounting region R3, and a fourth mounting region R4.

[0152] The first mounting region R1B is a region on the circuit board 110B in which a portion of the signal generating unit 2 can be mounted. As described above, the portion of the signal generating unit 2 is a portion of the signal generating unit 2 that is provided in the main body 111B, and includes the oscillator circuit 21 and the power adjusting unit 22. The first mounting region R1B includes a space for arranging the oscillator circuit 21 and the power adjusting unit 22, and includes a conductor pattern for electrically connecting the oscillator circuit 21 and the power adjusting unit 22 as necessary.

[0153] The second mounting regions R21B and R22 are regions on the circuit board 110B in which at least one of the second output unit 62 connectable to a coaxial cable and the input unit 70 connectable to a coaxial cable can be mounted. The second mounting region R21B corresponds to the second output unit 62.

[0154] The circuit board 110B includes regions for forming a first transmission path P1B, a second transmission path P2, and a third transmission path P3. The first transmission path P1B connects the power adjustment unit 22 to the second output unit 62.

[0155] Fig. 20 is an explanatory diagram of a radio wave emission device 11B. The radio wave emission device 11B is formed using the common circuit configuration 100B shown in Fig. 19. In the case of the radio wave emission device 11B, the adjustment unit 30, signal amplification unit 40, radio wave emission unit 50, communication unit 80, communication terminal 80a, and control unit 90 of the circuit board 110B are used as a first adjustment unit 31, a first signal amplification unit 41, a first radio wave emission unit 51, a first communication unit 81, a communication terminal 81a, and a first control unit 91.

[0156] To form the radio wave emission device 11B, a part of the signal generating unit 2 (oscillating circuit 21, power adjusting unit 22), the second output unit 62, and the input unit 70 (first input unit 71) are further mounted on the circuit board 110B. More specifically, the oscillator circuit 21 and power adjusting unit 22 of the signal generating unit 2 are mounted in the first mounting region R1B. Both the second output unit 62 and the input unit 70 used as the first input unit 71 are mounted in the second mounting regions R21B, R22. The radio wave emission device 11B uses a first transmission path P1B and a second transmission path P2.

[0157] The distributor 112B of the radio wave emitting device 11B is configured by mounting the distributor 23, output unit 61, and third input unit 73 of the signal generating unit 2 on a circuit board 120B separate from the circuit board 110B.

[0158] 20 , the oscillator circuit 21 is connected to the second output unit 62 via the power adjustment unit 22 and the first transmission path P1B. The second output unit 62 is connected to the third input unit 73 via the coaxial cable C3. As a result, the reference high-frequency signal from the oscillator circuit 21 of the main body unit 111B is input to the distributor 23 of the distributor 112B via the coaxial cable C3. The distributor 23 outputs multiple high-frequency signals to the output unit 61. The output unit 61 outputs multiple high-frequency signals generated by the signal generating unit 2 from multiple output terminals 611, respectively. The first input unit 71 is connected to one of the multiple output terminals 611 of the output unit 61 via the coaxial cable C2, and one of the multiple high-frequency signals is input thereto. The first adjustment unit 31 is connected to the first input unit 71 via the second transmission path P2 so as to receive the high-frequency signal input to the first input unit 71.

[0159] In this manner, the main body 111B of the radio wave emission device 11B is formed using the circuit configuration 100B.

[0160] 21 is a perspective view of the radio wave emission device 11B. The radio wave emission device 11B includes a first casing 211B for the main body 111B and a third casing 212B for the distribution unit 112B.

[0161] The first casing 211B and the third casing 212B are separate bodies. More specifically, the first casing 211B houses the circuit board 110B. That is, the first casing 211B houses the oscillator circuit 21 and power adjustment unit 22 of the signal generating unit 2, the first adjustment unit 31, the first signal amplifier 41, the first radio wave emitting unit 51, the first input unit 71, the first communication unit 81, the first control unit 91, and the second output unit 62, which constitute the main body 111B. In FIG. 21 , the first casing 211B has a rectangular parallelepiped shape. The first radio wave emitting unit 51, the second output unit 62, and the first input unit 71 are located on different sides of the first casing 211B. The first casing 211B may include a cooling structure. Examples of the cooling structure include heat dissipation fins for air cooling and a base plate for water cooling. Providing a cooling structure makes it possible to cool circuit elements (for example, the first signal amplifier 41) mounted on the circuit board 110B that are prone to becoming hot.

[0162] The third casing 212B accommodates the distributor 23 of the signal generating unit 2 that constitutes the distributor 112B, the output unit 61, and the third input unit 73. In Fig. 21, the third casing 212B has a rectangular parallelepiped shape. The output unit 61 and the third input unit 73 are located on different sides of the third casing 212B.

[0163] In the radio wave emission device 11B, the reference high-frequency signal is input from the oscillator circuit 21 in the first casing 211B to the distributor 23 in the third casing 212B via the first coaxial cable (coaxial cable C3). The first high-frequency signal is input from the distributor 23 in the third casing 212B to the first adjustment unit 31 in the first casing 211B via the second coaxial cable (coaxial cable C2).

[0164] Fig. 22 is an explanatory diagram of an extended radiation device 12B. The extended radiation device 12B is formed using the common circuit configuration 100B shown in Fig. 19. In the case of the extended radiation device 12B, the adjustment unit 30, the signal amplification unit 40, the radio wave radiation unit 50, the communication unit 80, the communication terminal 80a, and the control unit 90 of the circuit board 110B are used as a second adjustment unit 32, a second signal amplification unit 42, a second radio wave radiation unit 52, a second communication unit 82, a communication terminal 82a, and a second control unit 92.

[0165] When forming the extended radiating device 12B, an input unit 70 (second input unit 72) is further mounted on the circuit board 110B. More specifically, the signal generating unit 2 is not mounted in the first mounting region R1B. The second mounting regions R21B and R22 are not mounted with the second output unit 62, and only the input unit 70 used as the second input unit 72 is mounted. The extended radiating device 12B uses a second transmission path P2.

[0166] In FIG. 22, the second adjustment unit 32 is connected to the second input unit 72 via a second transmission path P2 so as to receive the high-frequency signal input to the second input unit 72.

[0167] In this manner, circuit configuration 100B is used to form extended radiating device 12B.

[0168] The extended radiating device 12B has a second casing 220 similar to that of the extended radiating device 12. The second casing 220 houses the circuit board 110B, similar to the first casing 211B. Therefore, the first casing 211B and the second casing 220 may have the same shape and dimensions. This allows for a reduction in the manufacturing costs of the first casing 211B and the second casing 220. As described above, the second casing 220 may be provided with a cooling structure.

[0169] Circuit configuration 100B can also be used to form a single radiating device.

[0170] 23 is an explanatory diagram of a single radiating device 13B, which is formed using the common circuit configuration 100B shown in FIG.

[0171] When forming the single radiating device 13B, the second signal generating unit 2a (oscillating circuit 21) is mounted in the first mounting region R1B. Neither the output unit 61 nor the input unit 70 is mounted in the second mounting regions R21B and R22. The single radiating device 13B utilizes the third transmission path P3.

[0172] In the case of the single radiation device 13B, the adjustment unit 30, signal amplification unit 40, radio wave radiation unit 50, communication unit 80, communication terminal 80a, and control unit 90 of the circuit configuration 100B are used as a third adjustment unit 33, a third signal amplification unit 43, a third radio wave radiation unit 53, a third communication unit 83, a communication terminal 83a, and a third control unit 93.

[0173] 23, the oscillator circuit 21 is connected to the third adjustment unit 33 via the third transmission path P3. As a result, the third adjustment unit 33 is connected to the second signal generating unit 2a so as to receive the single high-frequency signal generated by the second signal generating unit 2a.

[0174] In this manner, circuit configuration 100B is used to form a single radiating device 13B.

[0175] The single radiating device 13B has a fourth casing 230 similar to that of the single radiating device 13. The fourth casing 230 houses the circuit board 110B, similar to the first casing 211B and the second casing 220. Therefore, the first casing 211B, the second casing 220, and the fourth casing 230 may have the same shape and dimensions. This allows for a reduction in manufacturing costs for the first casing 211B, the second casing 220, and the fourth casing 230. As described above, the fourth casing 230 may be provided with a cooling structure.

[0176] The first mounting area R1B of the circuit board 110B can be smaller than the first mounting area R1 of the circuit boards 110 and 110A by the amount that does not mount the distributor 23. Therefore, the circuit board 110B can be made smaller than the circuit boards 110 and 110A, which enables the first casing 211B, the second casing 220, and the fourth casing 230 to be made smaller.

[0177] [1.3.2 Effects, etc.] In the radio wave emission system 1B described above, the first casing 211B houses the oscillator circuit 21, the first adjustment unit 31, the first signal amplifier 41, and the first radio wave emission unit 51. The radio wave emission device 11B is separate from the first casing 211B and includes a third casing 212B that houses the distributor 23 and the output unit 61. The reference high-frequency signal is input from the oscillator circuit 21 in the first casing 211B to the distributor 23 in the third casing 212B via the first coaxial cable (coaxial cable C3). The first high-frequency signal is input from the distributor 23 in the third casing 212B to the first adjustment unit 31 in the first casing 211B via the second coaxial cable (coaxial cable C2). This configuration allows for increased flexibility in the arrangement of the radio wave emission system 1B.

[0178] 24 is a block diagram of a radio wave emission system 1C according to a fourth embodiment. The radio wave emission system 1C includes a radio wave emission device 11C and one or more extended radiation devices 12C (12C-1 to 12C-7). In the radio wave emission system 1C, the maximum output of radio waves that can be emitted from the radio wave emission system 1C can be changed by changing the number of extended radiation devices 12C.

[0179] The radio wave emitting device 11C includes a signal generating unit 2C, a first adjusting unit 31, a first signal amplifying unit 41, a first radio wave emitting unit 51, an output unit 61, a first communication unit 81, and a first control unit 91C.

[0180] The signal generating unit 2C generates a plurality of high-frequency signals having the same frequency band and phase. In this embodiment, the signal generating unit 2C is configured to be able to generate up to eight high-frequency signals. The signal generating unit 2C includes an oscillation circuit 24 and a multi-output frequency synthesizer 25.

[0181] The oscillator circuit 24 generates a reference signal. The reference signal is a signal in a frequency band lower than the multiple high-frequency signals. As an example, the frequency band of the reference signal is about several tens of MHz, and the frequency band of the high-frequency signals is about 2400 MHz to 2500 MHz. The oscillator circuit 24 converts commercial AC power into DC power, for example, and generates the reference signal by voltage control using a semiconductor supplied with DC power.

[0182] The multi-output frequency synthesizer 25 generates a plurality of high-frequency signals having the same frequency band and phase based on a reference signal. The multi-output frequency synthesizer 25 includes an input terminal 251 and a plurality of output terminals 252 (252-1 to 252-8). The multi-output frequency synthesizer 25 outputs high-frequency signals having the same frequency band and phase from each output terminal 252 based on the reference signal input to the input terminal 251. In this embodiment, the multi-output frequency synthesizer 25 is configured to be able to output a maximum of eight high-frequency signals. One of the eight high-frequency signals is used as a first high-frequency signal, and the remaining seven are used as second high-frequency signals. In this embodiment, the high-frequency signal output from the output terminal 252-8 is used as the first high-frequency signal. The remaining high-frequency signals output from the output terminals 252-1 to 252-7 are used as second high-frequency signals. The number of second high-frequency signals is set according to the number of extended radiating devices 12C.

[0183] In this embodiment, output terminals 611-1 to 611-8 of output unit 61 are connected to a plurality of output terminals 252-1 to 252-8, respectively, of multi-output frequency synthesizer 25. Output terminal 611-8 is used as a first output terminal that outputs a first high-frequency signal. The remaining output terminals 611-1 to 611-7 are used as second output terminals that output second high-frequency signals, respectively.

[0184] The first communication unit 81C receives a first communication signal from the external device 14. The first communication signal is, for example, a serial signal. The external device 14 is a device external to the radio wave emission system 1C. The external device 14 may be, for example, an application controller unit (ACU). The first communication signal is used to adjust the phase and output power of the first radio wave of the radio wave emission device 11C.

[0185] The first control unit 91C controls the first adjustment unit 31 based on the first communication signal received by the first communication unit 81C, so that the first adjustment unit 31 adjusts the first high-frequency signal based on the first communication signal received by the first communication unit 81C.

[0186] The extended radiation device 12C includes a second adjustment unit 32, a second signal amplification unit 42, a second radio wave radiation unit 52, a second input unit 72, a second communication unit 82C, and a second control unit 92C.

[0187] The second communication unit 82C receives a second communication signal from the external device 14. The second communication signal is, for example, a serial signal. The second communication signal is used to adjust the phase and output power of the second radio wave of the extended radiating device 12C.

[0188] The second control unit 92C controls the second adjustment unit 32 based on the second communication signal received by the second communication unit 82C, so that the second adjustment unit 32 adjusts the second high-frequency signal based on the second communication signal received by the second communication unit 82C.

[0189] In the radio wave emission system 1C, the external device 14 can adjust the phase and output power of the first radio wave of the radio wave emission device 11C and the phase and output power of the second radio wave of the extended emission device 12C.

[0190] [1.4.2 Effects, etc.] In the radio wave emission system 1C described above, the signal generating unit 2C includes an oscillator circuit 24 that generates a reference signal in a frequency band lower than the multiple high-frequency signals, and a multi-output frequency synthesizer 25 that generates the multiple high-frequency signals based on the reference signal. This configuration makes it possible to simplify the configuration of the signal generating unit 2C.

[0191] In the radio wave emission system 1C described above, the radio wave emission device 11C includes a first communication unit 81 that receives a first communication signal from the external device 14. The first adjustment unit 31 adjusts the first high-frequency signal based on the first communication signal received by the first communication unit 81. Each of the one or more extended radiation devices 12C includes a second communication unit 82 that receives a second communication signal from the external device. In each of the one or more extended radiation devices 12C, the second adjustment unit 32 adjusts the second high-frequency signal based on the second communication signal received by the second communication unit 82. This configuration makes it possible to adjust at least one of the phase and power of each of the first high-frequency signal and the second high-frequency signal using an external device.

[0192] [2. Modifications] The embodiments of the present disclosure are not limited to the above-described embodiments. The above-described embodiments can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. Modifications of the above-described embodiments are listed below. The modifications described below can be applied in appropriate combinations.

[0193] In the following, reference will be made to the symbols used in embodiment 1, even though they are applicable to any of the above embodiments 1 to 4. However, this is merely to simplify the description and is not intended to exclude application to embodiments 2 to 4.

[0194] In one modification, there is no particular limitation on the number of extended radiation devices 12 that can be connected to the radio wave radiation device 11. That is, there is no particular limitation on the number of high-frequency signals generated by the signal generating unit 2, the number of output terminals 611 of the output unit 61, etc.

[0195] In one modification, the signal generating section 2 may not include the power adjusting section 22 .

[0196] In the first embodiment, the divider 23 outputs a plurality of high-frequency signals by equally dividing a reference high-frequency signal. As a result, the divider 23 outputs, from each output terminal 232, a high-frequency signal having the same frequency band and phase as the reference high-frequency signal input to the input terminal 231. However, the divider 23 does not necessarily divide the reference high-frequency signal equally. As a modification, the phases of the reference high-frequency signal input to the input terminal 231 and the high-frequency signal output from the output terminal 232 may be different. Furthermore, when connecting to a phased array antenna or the like via the first radio wave emitting unit 51 and the second radio wave emitting unit 52 to perform beamforming or the like, the phases of the high-frequency signals output from each output terminal 232-1 to 232-8 or 611-1 to 611-8 or the first radio wave emitting unit 51 and the second radio wave emitting unit 52 may be set to be different from each other.

[0197] In one modified example, the first adjustment unit 31 and the second adjustment unit 32 may automatically adjust the phase and / or power. In the single radiation device 13 shown in FIG. 8 , the third adjustment unit 33 does not include the phase adjuster 311. However, the third adjustment unit 33 may include the phase adjuster 311, similar to the first adjustment unit 31 or the second adjustment unit 32. This allows the first adjustment unit 31, the second adjustment unit 32, and the third adjustment unit 33 to have the same configuration. In this case, the third control unit 93 may adjust the phase of the high-frequency signal using the phase adjuster 311 of the third adjustment unit 33. For example, the third control unit 93 adjusts the phase of the high-frequency signal to a phase target value using the third adjustment unit 33. The phase target value may be provided by a communication signal from an external device.

[0198] In one modified example, the first radio wave emitting portion 51, the second radio wave emitting portion 52, and the third radio wave emitting portion 53 may be configured to be able to radiate radio waves. For example, they do not necessarily need to be antennas, but may be terminals that can be connected to elements that radiate radio waves. An example of such a terminal is a terminal to which a coaxial cable can be connected. As an example, if the first radio wave emitting portion 51, the second radio wave emitting portion 52, and the third radio wave emitting portion 53 are terminals to which a coaxial cable can be connected, the first radio wave emitting portion 51, the second radio wave emitting portion 52, and the third radio wave emitting portion 53 may be connected to a combiner via the coaxial cable, and a combined high-frequency signal may be radiated.

[0199] In the first embodiment, the output unit 61 outputs a first high-frequency signal from a first output terminal 611-8 of one or more output terminals 611, and the first high-frequency signal is input to the first adjustment unit 31 via the coaxial cable C2. In one variation, the first adjustment unit 31 may adjust at least one of the phase and power of the high-frequency band of the first high-frequency signal by an amount corresponding to the length of the coaxial cable C2 connected to the first output terminal 611-8. This configuration makes it possible to reduce the influence of the coaxial cable C1 on the high-frequency signal.

[0200] In the first embodiment, the multiple coaxial cables C1-1 to C1-7 and C2 are set to the same length to match the phases of the radio waves radiated from the radio wave radiating device 11 and the extended radiating device 12, but this configuration is not limited to this. As a modified example, the phases may be adjusted appropriately depending on the configuration of the antennas and systems connected to the radio wave radiating device 11 and the extended radiating device 12. For example, in a case where separate antennas are connected to the radio wave radiating device 11 and the extended radiating device 12 and the antennas are installed in different locations within a single large processing chamber, the phases of the radio waves output from the radio wave radiating device 11 and the extended radiating device 12 may be controlled individually, and the multiple coaxial cables C1-1 to C1-7 and C2 may be set to different lengths depending on the installation locations.

[0201] In one modified example, in each of the one or more extended radiating devices 12, the second adjustment unit 32 may adjust at least one of the phase and power of the high-frequency band of the second high-frequency signal by an amount corresponding to the length of the coaxial cable C1 connected to the second input unit 72. This configuration makes it possible to reduce the influence of the coaxial cable C1 on the high-frequency signal. In the first embodiment, the radio wave radiating device 11 and each of the one or more extended radiating devices 12 are connected by coaxial cables C1 of the same length. However, in one modified example, the coaxial cables C1 may be different in length between the first radio wave radiating unit 51 of the radio wave radiating device 11 and the second radio wave radiating unit 52 of each of the one or more extended radiating devices 12, in cases where strict phase adjustment is not required or where adjustment is possible by the first adjustment unit 31 and the second adjustment unit 32.

[0202] In the first embodiment, the first communication unit 81 is configured to transmit a communication signal to the second communication unit 82, but this configuration is not limited to this. As a modified example, the first communication unit 81 and the second communication unit 82 may transmit and receive signals to and from the external device 14, or the first communication unit 81 and the second communication unit 82 may transmit and receive signals to and from the external device 14.

[0203] In one modified example, the first communication unit 81 and the second communication unit 82 may be wireless communication rather than wired communication, and this is not necessarily required.

[0204] In one modified example, the shapes of the first casing 210 and the second casing 220 are not particularly limited. For example, in the first embodiment, the first casing 210 and the second casing 220 are rectangular parallelepiped-shaped, but they may also be cubic-shaped, or may have an irregular shape in which recesses are formed in the wall surfaces of the first casing 210 and the second casing 220 to accommodate the first radio wave emitting portion 51 or the second radio wave emitting portion 52, etc., so that they do not protrude too far outward. In this way, the shapes of the first casing 210 and the second casing 220 can be changed as appropriate depending on the shape of the circuit board 110 or the desired design.

[0205] In the first embodiment, in the radio wave emission device 11, the first radio wave emission unit 51, the output unit 61, and the first input unit 71 are arranged on different side surfaces of the first casing 210, but this arrangement is not limited to this. As a modified example, the first radio wave emission unit 51 and the output unit 61 may be arranged on the same side surface, and the arrangement of the first input unit 71 and the output unit 61 may be changed as appropriate depending on the positional relationship with the external device 14 or the arrangement of the radio wave emission device 11 and the extended radiation device 12. This also applies to the extended radiation device 12.

[0206] In one variation, the circuit configuration 100 may include one or more circuit boards 110. For example, the circuit configuration 100 may include multiple circuit boards, and the first to fourth mounting regions R1 to R4 may be distributed across the multiple circuit boards. Furthermore, the first mounting region R1 may not be a single, continuous region, but may instead be composed of multiple discrete regions. This also applies to the second mounting regions R21 and R22, the third mounting region R3, and the fourth mounting region R4.

[0207] [3. Aspects] As is clear from the above-described embodiment and modifications, the present disclosure includes the following aspects.

[0208] [Aspect 1] A radio wave emission device comprising: a radio wave emission device; and one or more extended radiation devices, wherein the radio wave emission device comprises: a signal generation unit that generates a plurality of high frequency signals having the same frequency band and phase; a first adjustment unit that adjusts a first high frequency signal of the plurality of high frequency signals in terms of at least one of phase and power; a first signal amplification unit that amplifies the first high frequency signal adjusted by the first adjustment unit; a first radio wave emission unit that is able to radiate a first radio wave based on the first high frequency signal amplified by the first signal amplification unit; and an output unit having one or more output terminals connectable to a coaxial cable, and outputting one or more second high frequency signals different from the first high frequency signal of the plurality of high frequency signals from one or more second output terminals of the one or more output terminals, respectively, wherein each of the one or more extended radiation devices comprises: a second input unit that is connected to one of the one or more second output terminals via a coaxial cable, and to which one of the one or more second high frequency signals is input; and a second adjustment unit that adjusts the second high frequency signal input to the second input unit in terms of at least one of phase and power. a second signal amplifier that amplifies the second high-frequency signal adjusted by the second adjustment unit; and a second radio wave emitter that enables a second radio wave to be emitted based on the second high-frequency signal amplified by the second signal amplifier.

[0209] [Aspect 2] The radio wave radiation system of Aspect 1, wherein the radio wave radiation device includes a first casing that houses at least a portion of the signal generating unit, the first adjustment unit, the first signal amplification unit, the first radio wave radiation unit, and the output unit, and each of the one or more extended radiation devices includes a second casing that houses the second input unit, the second adjustment unit, the second signal amplification unit, and the second radio wave radiation unit.

[0210] [Aspect 3] The radio wave emission system of Aspect 2, wherein the signal generating unit includes: an oscillator circuit that generates a reference high-frequency signal; and a divider that outputs the plurality of high-frequency signals by equally dividing the reference high-frequency signal.

[0211] [Aspect 4] The radio wave emission system of Aspect 2 or 3, wherein the signal generation unit comprises: an oscillator circuit that generates a reference signal in a frequency band lower than the plurality of high-frequency signals; and a multi-output frequency synthesizer that generates the plurality of high-frequency signals based on the reference signal.

[0212] [Aspect 5] The radio wave emission system of Aspect 3 or 4, wherein the first casing accommodates the signal generating unit, the first adjusting unit, the first signal amplifying unit, the first radio wave emitting unit, and the output unit.

[0213] [Aspect 6] The radio wave emission system of Aspect 5, wherein the first high-frequency signal is input from the signal generating unit to the first adjustment unit within the first casing, and the one or more second high-frequency signals are input from the signal generating unit to the output unit within the first casing.

[0214] [Aspect 7] The radio wave radiation system of Aspect 3, wherein the first casing houses the oscillator circuit, the first adjustment unit, the first signal amplification unit, and the first radio wave radiation unit; the radio wave radiation device is separate from the first casing and includes a third casing that houses the distributor and the output unit; the reference high-frequency signal is input from the oscillator circuit in the first casing to the distributor in the third casing via a first coaxial cable; and the first high-frequency signal is input from the distributor in the third casing to the first adjustment unit in the first casing via a second coaxial cable.

[0215] [Aspect 8] The radio wave emission system of Aspect 3, wherein the radio wave emission device includes a power adjustment unit that adjusts the power of the reference radio frequency signal based on the number of the plurality of radio frequency signals so that the power of each of the plurality of radio frequency signals becomes a predetermined power.

[0216] [Aspect 9] The radio wave radiation system of any one of Aspects 1 to 8, wherein the radio wave radiation device comprises a first control unit that controls the first adjustment unit, and the first control unit refers to a first lookup table indicating the relationship between the output power of the radio wave radiation system and the power of the first high-frequency signal, and feedback-controls the first adjustment unit so that the power of the first high-frequency signal becomes power corresponding to the given target value of the output power, and each of the one or more extended radiation devices comprises a second control unit that controls the second adjustment unit, and the second control unit refers to a second lookup table indicating the relationship between the output power and the power of the second high-frequency signal, and feedback-controls the second adjustment unit so that the power of the second high-frequency signal becomes power corresponding to the given target value, and the first lookup table and the second lookup table are changed according to at least one of the number of the one or more extended radiation devices or a difference in length of the plurality of coaxial cables connected to the plurality of output terminals of the output unit.

[0217] [Aspect 10] The radio wave radiation system according to any one of Aspects 1 to 9, wherein the coaxial cables connected to the output terminals of the output section have the same length.

[0218] [Aspect 11] The radio wave radiation system according to any one of Aspects 1 to 10, wherein in each of the one or more extended radiation devices, the second adjustment unit adjusts at least one of the phase and power of the high frequency band of the second high frequency signal by an amount corresponding to the length of a coaxial cable connected to the second input unit.

[0219] [Aspect 12] The radio wave emission system of Aspect 11, wherein the output unit outputs the first high-frequency signal from a first output terminal of the one or more output terminals, the first high-frequency signal is input to the first adjustment unit via a coaxial cable, and the first adjustment unit adjusts at least one of the phase and power of a high-frequency band of the first high-frequency signal by an amount according to the length of the coaxial cable connected to the first output terminal.

[0220] [Aspect 13] The radio wave radiation system according to any one of Aspects 1 to 12, wherein the radio wave radiation device includes a first communication unit that transmits a communication signal, each of the one or more extended radiation devices includes a second communication unit that receives the communication signal, and in each of the one or more extended radiation devices, the second adjustment unit adjusts the second high-frequency signal based on the communication signal received by the second communication unit.

[0221] [Aspect 14] The radio wave radiation system of any one of Aspects 1 to 13, wherein the radio wave radiation device includes a first communication unit that receives a first communication signal from an external device, and the first adjustment unit adjusts the first high-frequency signal based on the first communication signal received by the first communication unit, and each of the one or more extended radiation devices includes a second communication unit that receives a second communication signal from an external device, and in each of the one or more extended radiation devices, the second adjustment unit adjusts the second high-frequency signal based on the second communication signal received by the second communication unit.

[0222] [Aspect 15] A radio wave radiation device to which one or more extended radiation devices can be connected, comprising: a signal generation unit that generates a plurality of high frequency signals having the same frequency band and phase; a first adjustment unit that adjusts a first high frequency signal of the plurality of high frequency signals in terms of at least one of phase and power; a first signal amplification unit that amplifies the first high frequency signal adjusted by the first adjustment unit; a first radio wave radiation unit that can radiate a first radio wave based on the first high frequency signal amplified by the first signal amplification unit; and an output unit that has one or more output terminals connectable to a coaxial cable and outputs one or more second high frequency signals different from the first high frequency signal of the plurality of high frequency signals from one or more second output terminals of the one or more output terminals, respectively; wherein each of the one or more extended radiation devices comprises: a second input unit that is connected to one of the one or more second output terminals via a coaxial cable and to which one of the one or more second high frequency signals is input; and a second adjustment unit that adjusts the second high frequency signal input to the second input unit in terms of at least one of phase and power. a second signal amplifier that amplifies the second high-frequency signal adjusted by the second adjustment unit; and a second radio wave emitter that can emit a second radio wave based on the second high-frequency signal amplified by the second signal amplifier.

[0223] [Aspect 16] A radio wave emitting device comprising: an adjustment unit that adjusts a received high frequency signal with respect to at least one of phase and power; a signal amplification unit that amplifies the high frequency signal adjusted by the adjustment unit; a radio wave emitting unit that enables radio waves to be emitted based on the high frequency signal amplified by the signal amplification unit; and one or more circuit boards on which the adjustment unit, the signal amplification unit, and the radio wave emitting unit are mounted, wherein the one or more circuit boards include: a first mounting area in which at least a part of a first signal generating unit that generates a plurality of high frequency signals having the same frequency band and phase, or a second signal generating unit that generates a single high frequency signal, can be mounted; and a second mounting area in which at least one of an output unit having one or more output terminals connectable to a coaxial cable and an input unit connectable to a coaxial cable can be mounted.

[0224] [Aspect 17] A radio wave emitting device of Aspect 16, wherein at least a portion of the first signal generating unit is mounted in the first mounting area, and both the output unit and the input unit are mounted in the second mounting area, the output unit outputs the multiple high-frequency signals generated by the first signal generating unit from the multiple output terminals, respectively, the input unit is connected to one of the multiple output terminals of the output unit via a coaxial cable and receives one of the multiple high-frequency signals as input, and the adjustment unit is connected to the input unit so as to receive the high-frequency signal input to the input unit.

[0225] [Aspect 18] The radio wave emission device of Aspect 16, wherein at least a portion of the first signal generating unit is mounted in the first mounting area, the output unit is mounted in the second mounting area, the adjustment unit is connected to the first signal generating unit to receive one of the plurality of high-frequency signals generated by the first signal generating unit, and the output unit is connected to the first signal generating unit to output one or more of the remaining high-frequency signals of the plurality of high-frequency signals generated by the first signal generating unit from one or more of the plurality of output terminals, respectively.

[0226] [Aspect 19] The radio wave emitting device of Aspect 16, wherein the second signal generating unit is mounted in the first mounting area, neither the output unit nor the input unit is mounted in the second mounting area, and the adjustment unit is connected to the second signal generating unit so as to receive the single high-frequency signal generated by the second signal generating unit.

[0227] [Aspect 20] The radio wave emission device of Aspect 16, wherein neither the first signal generating unit nor the second signal generating unit is mounted in the first mounting area, the input unit is mounted in the second mounting area, and the adjustment unit is connected to the input unit so as to receive a high-frequency signal input to the input unit.

[0228] Aspects 2 to 14 are optional elements and are not essential. Aspects 2 to 14 can be appropriately combined with Aspects 15 to 20.

[0229] The present disclosure is applicable to radio wave emitting systems and radio wave emitting devices, particularly to radio wave emitting systems that emit multiple radio waves, and to radio wave emitting devices that constitute a radio wave emitting system or that can be used independently.

[0230] 1, 1A, 1B, 1C Radio wave radiation system 11, 11A, 11B, 11C Radio wave radiation device 12, 12A, 12B, 12C Extended radiation device 13, 13A, 13B Single radiation device 14 External device 2, 2C Signal generation unit (first signal generation unit) 2a Signal generation unit (second signal generation unit) 21 Oscillator circuit 22 Power adjustment unit 23 Distributor 24 Oscillator circuit 25 Multi-output frequency synthesizer 30 Adjustment unit 31 First adjustment unit 32 Second adjustment unit 40 Signal amplification unit 41 First signal amplification unit 42 Second signal amplification unit 50 Radio wave radiation unit 51 First radio wave radiation unit 52 Second radio wave radiation unit 61, 61A Output unit 611 Output terminal 611-1 to 611-7 Output terminal (second output terminal) 611-8 Output terminal (first output terminal) 70 Input section 71 First input section 72 Second input section 80 Communication section 81, 81C First communication section 82, 82C Second communication section 90 Control section 91, 91C First control section 92, 92C Second control section 100, 100A, 100B Circuit configuration 110, 110A, 110B Circuit board R1, R1B First mounting area R21, R21A, R21B, R22 Second mounting area 210, 210A, 211B First casing 212B Third casing 220 Second casing C1 Coaxial cable C2 Coaxial cable (second coaxial cable) C3 Coaxial cable (first coaxial cable)

Claims

1. A radio wave emitting device comprising: a radio wave emitting device; and one or more extended emitting devices; wherein the radio wave emitting device comprises: a signal generating unit which generates a plurality of high frequency signals having the same frequency band and phase; a first adjusting unit which adjusts a first high frequency signal of the plurality of high frequency signals in at least one of phase and power; a first signal amplifying unit which amplifies the first high frequency signal adjusted by the first adjusting unit; a first radio wave emitting unit which enables a first radio wave to be radiated based on the first high frequency signal amplified by the first signal amplifying unit; and an output unit which has one or more output terminals connectable to a coaxial cable and outputs one or more second high frequency signals different from the first high frequency signal of the plurality of high frequency signals from one or more second output terminals of the one or more output terminals; wherein each of the one or more extended emitting devices comprises: a second input unit which is connected to one of the one or more second output terminals via a coaxial cable and into which one of the one or more second high frequency signals is input; and a second adjusting unit which adjusts the second high frequency signal input to the second input unit in at least one of phase and power. a second signal amplifier that amplifies the second high frequency signal adjusted by the second adjustment unit; and a second radio wave emitting unit that enables a second radio wave to be radiated based on the second high frequency signal amplified by the second signal amplifier.

2. The radio wave radiation system of claim 1, wherein the radio wave radiation device comprises a first casing that houses at least a portion of the signal generating section, the first adjustment section, the first signal amplification section, the first radio wave radiation section, and the output section, and each of the one or more extended radiation devices comprises a second casing that houses the second input section, the second adjustment section, the second signal amplification section, and the second radio wave radiation section.

3. The radio wave emission system according to claim 2, wherein the signal generating section comprises: an oscillator circuit that generates a reference high-frequency signal; and a distributor that outputs the plurality of high-frequency signals by equally dividing the reference high-frequency signal.

4. The radio wave radiation system of claim 2, wherein the signal generating section comprises: an oscillator circuit that generates a reference signal in a frequency band lower than the multiple high-frequency signals; and a multi-output frequency synthesizer that generates the multiple high-frequency signals based on the reference signal.

5. The radio wave radiation system according to claim 3 or 4, wherein the first casing accommodates the signal generating section, the first adjusting section, the first signal amplifying section, the first radio wave radiating section, and the output section.

6. The radio wave radiation system of claim 5, wherein the first high frequency signal is input from the signal generating unit to the first adjustment unit within the first casing, and the one or more second high frequency signals are input from the signal generating unit to the output unit within the first casing.

7. The radio wave radiation system of claim 3, wherein the first casing houses the oscillator circuit, the first adjustment unit, the first signal amplifier, and the first radio wave radiation unit, the radio wave radiation device comprises a third casing separate from the first casing and housing the distributor and the output unit, the reference high frequency signal is input from the oscillator circuit in the first casing to the distributor in the third casing via a first coaxial cable, and the first high frequency signal is input from the distributor in the third casing to the first adjustment unit in the first casing via a second coaxial cable.

8. The radio wave radiation system according to claim 3, wherein said radio wave radiation device comprises a power adjustment section for adjusting the power of said reference radio frequency signal based on the number of said multiple radio frequency signals so that the power of each of said multiple radio frequency signals becomes a predetermined power.

9. The radio wave radiation system of claim 1, wherein the radio wave radiation device comprises a first control unit that controls the first adjustment unit, and the first control unit refers to a first lookup table showing the relationship between the output power of the radio wave radiation system and the power of the first high-frequency signal, and feedback-controls the first adjustment unit so that the power of the first high-frequency signal becomes a power corresponding to the given target value of the output power, and each of the one or more extended radiation devices comprises a second control unit that controls the second adjustment unit, and the second control unit refers to a second lookup table showing the relationship between the output power and the power of the second high-frequency signal, and feedback-controls the second adjustment unit so that the power of the second high-frequency signal becomes a power corresponding to the given target value, and the first lookup table and the second lookup table are changed according to at least one of the number of the one or more extended radiation devices or the difference in length of the multiple coaxial cables connected to the multiple output terminals of the output unit.

10. The radio wave radiation system according to claim 1, wherein the lengths of the coaxial cables connected to the output terminals of the output section are equal to each other.

11. The radio wave radiation system of claim 1, wherein in each of the one or more extended radiating devices, the second adjustment section adjusts at least one of the phase and power of the high frequency band of the second high frequency signal by an amount corresponding to the length of a coaxial cable connected to the second input section.

12. The radio wave radiation system of claim 11, wherein the output unit outputs the first high frequency signal from a first output terminal of the one or more output terminals, the first high frequency signal is input to the first adjustment unit via a coaxial cable, and the first adjustment unit adjusts at least one of the phase and power of the high frequency band of the first high frequency signal by an amount corresponding to the length of the coaxial cable connected to the first output terminal.

13. The radio wave radiation system of claim 1, wherein the radio wave radiation device comprises a first communication unit that transmits a communication signal, each of the one or more extended radiation devices comprises a second communication unit that receives the communication signal, and in each of the one or more extended radiation devices, the second adjustment unit adjusts the second high-frequency signal based on the communication signal received by the second communication unit.

14. The radio wave radiation system of claim 1, wherein the radio wave radiation device comprises a first communication unit that receives a first communication signal from an external device, the first adjustment unit adjusts the first high-frequency signal based on the first communication signal received by the first communication unit, each of the one or more extended radiation devices comprises a second communication unit that receives a second communication signal from an external device, and in each of the one or more extended radiation devices, the second adjustment unit adjusts the second high-frequency signal based on the second communication signal received by the second communication unit.

15. A radio wave radiation device to which one or more extended radiation devices can be connected, comprising: a signal generating unit that generates a plurality of high frequency signals having the same frequency band and phase; a first adjusting unit that adjusts a first high frequency signal of the plurality of high frequency signals in at least one of phase and power; a first signal amplifying unit that amplifies the first high frequency signal adjusted by the first adjusting unit; a first radio wave radiation unit that enables a first radio wave to be radiated based on the first high frequency signal amplified by the first signal amplifying unit; and an output unit having one or more output terminals that can be connected to a coaxial cable, and outputting one or more second high frequency signals different from the first high frequency signal of the plurality of high frequency signals from one or more second output terminals of the one or more output terminals, respectively; wherein each of the one or more extended radiation devices comprises: a second input unit that is connected to one of the one or more second output terminals via a coaxial cable, and to which one of the one or more second high frequency signals is input; and a second adjusting unit that adjusts the second high frequency signal input to the second input unit in at least one of phase and power. a second signal amplifier that amplifies the second high frequency signal adjusted by the second adjustment unit; and a second radio wave emitter that enables a second radio wave to be emitted based on the second high frequency signal amplified by the second signal amplifier.

16. A radio wave emitting device comprising: an adjustment unit that adjusts a received high frequency signal with respect to at least one of phase and power; a signal amplification unit that amplifies the high frequency signal adjusted by the adjustment unit; a radio wave emitting unit that enables radio waves to be emitted based on the high frequency signal amplified by the signal amplification unit; and one or more circuit boards on which the adjustment unit, the signal amplification unit, and the radio wave emitting unit are mounted, wherein the one or more circuit boards include: a first mounting area capable of mounting at least a part of a first signal generating unit that generates multiple high frequency signals having the same frequency band and phase, or a second signal generating unit that generates a single high frequency signal; and a second mounting area capable of mounting at least one of an output unit having one or multiple output terminals connectable to a coaxial cable and an input unit connectable to a coaxial cable.

17. The radio wave emitting device of claim 16, wherein at least a portion of the first signal generating unit is mounted in the first mounting area, and both the output unit and the input unit are mounted in the second mounting area, the output unit outputs the multiple high-frequency signals generated by the first signal generating unit from the multiple output terminals, respectively, the input unit is connected to one of the multiple output terminals of the output unit via a coaxial cable and receives one of the multiple high-frequency signals, and the adjustment unit is connected to the input unit so as to receive the high-frequency signal input to the input unit.

18. The radio wave emitting device of claim 16, wherein at least a portion of the first signal generating unit is mounted in the first mounting area, the output unit is mounted in the second mounting area, the adjustment unit is connected to the first signal generating unit so as to receive one of the multiple high frequency signals generated by the first signal generating unit, and the output unit is connected to the first signal generating unit so as to output one or more of the remaining high frequency signals of the multiple high frequency signals generated by the first signal generating unit from one or more of the multiple output terminals, respectively.

19. The radio wave emitting device of claim 16, wherein the second signal generating unit is mounted in the first mounting area, neither the output unit nor the input unit is mounted in the second mounting area, and the adjustment unit is connected to the second signal generating unit so as to receive the single high frequency signal generated by the second signal generating unit.

20. The radio wave emitting device of claim 16, wherein neither the first signal generating unit nor the second signal generating unit is mounted in the first mounting area, the input unit is mounted in the second mounting area, and the adjustment unit is connected to the input unit so as to receive a high frequency signal input to the input unit.

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