An omnidirectional indoor antenna system

Abstract

An embodiment of the present application provides an omnidirectional indoor antenna system, comprising a satellite gateway, a multi-system combining access platform, a power splitter or coupler, an adjustable radio frequency control unit, and an omnidirectional antenna. The satellite gateway converts the received multi-band satellite signal into a multi-band electrical signal and transmits it to the multi-system combining access platform. The platform combines and outputs the multi-band electrical signal to the power splitter or coupler. The power splitter or coupler distributes the multi-band electrical signal output by the multi-system combining access platform to the omnidirectional antenna through the adjustable radio frequency control unit. The adjustable radio frequency control unit is used to adjust the delay of the received multi-band electrical signal according to a preset delay parameter, and / or adjust the gain according to a preset gain parameter, and transmit the adjusted signal to the omnidirectional antenna. The present application can improve the coverage and signal quality of the multi-band signal in the indoor environment, realize the delay adjustment and gain adjustment of the signals in different frequency bands, and improve the flexibility and adaptability of the antenna.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of antenna technology, and in particular to an omnidirectional indoor antenna system. Background Art

[0002] With the advancement of communication technology, the demand for indoor communications and satellite signal coverage is increasing. Indoor distributed antenna systems utilize distributed antennas to evenly distribute signals to every corner of the room, ensuring coverage for all indoor areas. Existing indoor distributed antenna systems primarily support access from signal sources such as repeaters, macrocells, and microcells. Due to limitations in antenna firmware, access to multi-band satellite signals is limited. Furthermore, indoor distributed antenna systems and satellite relay systems lack the ability to flexibly configure multi-band signal gain and latency. Summary of the Invention

[0003] In view of this, an object of the embodiments of the present application is to provide an omnidirectional indoor antenna system.

[0004] Based on the above objectives, the embodiment of the present application provides an omnidirectional indoor antenna system, comprising: a satellite gateway, a multi-system combining access platform, a power splitter or coupler, an adjustable radio frequency control unit, and an omnidirectional antenna;

[0005] The satellite gateway converts the received multi-band satellite signals into multi-band electrical signals, and transmits the multi-band electrical signals to the multi-system combined access platform;

[0006] The multi-system combining access platform combines and outputs electrical signals of multiple frequency bands to at least one power splitter or coupler;

[0007] The power splitter or coupler distributes the multi-band electrical signals output by the multi-system combined access platform to the omnidirectional antenna through the adjustable radio frequency control unit;

[0008] The adjustable radio frequency control unit is used to adjust the delay of the received multi-band electrical signals according to the preset delay parameters, and / or adjust the gain of the received multi-band electrical signals according to the preset gain parameters, and transmit the adjusted signals to the omnidirectional antenna.

[0009] Optionally, the satellite gateway is used to set multi-frequency programmable parameters, which include gain parameter adjustment ranges for satellite signals in different frequency bands and delay parameter adjustment ranges for satellite signals in different frequency bands, and send the multi-frequency programmable parameters to the adjustable RF control unit.

[0010] Optionally, the adjustable radio frequency control unit includes a fixed gain amplifier and at least one variable gain amplifier;

[0011] The fixed gain amplifier is used to amplify the received multi-band electrical signal according to a preset fixed gain parameter to obtain an amplified multi-band electrical signal;

[0012] The at least one variable gain amplifier is used to amplify the amplified multi-band electrical signal according to a preset variable gain parameter; wherein the variable gain parameter is set based on the gain parameter adjustment range.

[0013] Optionally, the variable gain parameter includes multiple variable gain parameters for different frequency bands;

[0014] The at least one variable gain amplifier is used to amplify the amplified electrical signal of the corresponding frequency band according to each variable gain parameter.

[0015] Optionally, the adjustable radio frequency control unit includes a phase shifter and at least one delay circuit;

[0016] The phase shifter is used to perform phase modulation on the received multi-band electrical signal to obtain a phase-modulated multi-band electrical signal;

[0017] The delay circuit is used to perform delay adjustment on the phase-modulated multi-band electrical signal according to a preset delay parameter; wherein the delay parameter is set based on the delay parameter adjustment range.

[0018] Optionally, the delay parameter includes multiple delay parameters for different frequency bands;

[0019] The time delay circuit is used to perform time delay adjustment on the phase-modulated electrical signal of the corresponding frequency band according to each time delay parameter.

[0020] Optionally, the adjustable radio frequency control unit includes a communication control unit, and the communication control unit is used to configure variable gain parameters and delay parameters of electrical signals in different frequency bands based on the multi-frequency programmable parameters.

[0021] Optionally, the adjustable radio frequency control unit includes a communication control unit, a phase shifter, a first-stage amplifier, a first-stage delay line, a second-stage amplifier, a second-stage delay line, a third-stage amplifier, and a third-stage delay line;

[0022] The phase shifter is used to perform phase modulation processing on the received multi-band electrical signal, the phase-modulated multi-band electrical signal is amplified by the first-stage amplifier according to a fixed gain parameter, and the amplified multi-band electrical signal is delayed by the first-stage delay line according to a preset first-stage delay parameter;

[0023] For electrical signals of a specific frequency, the electrical signals are amplified by the second-stage amplifier according to the preset second-stage gain parameters, and the amplified electrical signals of the specific frequency band are delayed by the second-stage delay line according to the preset second-stage delay parameters. If the electrical signals of the specific frequency band meet the requirements after amplification and delay processing, they are output to the omnidirectional antenna. If the requirements are not met, the electrical signals are amplified by the three-stage amplifier according to the preset three-stage gain parameters, and the amplified electrical signals of the specific frequency band are delayed by the three-stage delay line according to the preset three-stage delay parameters.

[0024] Optionally, the system further includes a multi-band extension unit for frequency band extension, and the feeding end of the omnidirectional antenna is connected to the multi-band extension unit.

[0025] As can be seen from the above description, the omnidirectional indoor antenna system provided in the embodiment of the present application includes a satellite gateway, a multi-system combining access platform, a power splitter or coupler, an adjustable RF control unit and an omnidirectional antenna, etc., which can support omnidirectional amplification of multi-band satellite signals and signals of major mobile communication frequency bands, and can improve the coverage range and signal quality of multi-band signals in indoor environments. The adjustable RF control unit can realize delay adjustment and gain adjustment of signals in different frequency bands, thereby improving the flexibility and adaptability of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a block diagram of the antenna structure of an embodiment of the present application;

[0028] Figure 2 This is a structural block diagram of an adjustable radio frequency control unit according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] In related technologies, the coverage of mobile communications and satellite signals can be expanded by configuring pico base stations or other devices, which adds additional costs. It is still difficult to support multi-band satellite signals in complex indoor environments. Moreover, the related indoor antenna systems and satellite forwarding systems are unable to adjust the delay and gain of multi-band signals, making it difficult to flexibly adjust according to actual needs.

[0032] In view of this, an embodiment of the present application provides an omnidirectional indoor antenna system that can achieve coverage of multi-band signals in an indoor environment, and can adjust the delay and gain of multi-band signals to meet the application requirements of signals in different frequency bands.

[0033] The technical solution of the present application is further described in detail below through specific examples.

[0034] like Figure 1 As shown, an embodiment of the present application provides an omnidirectional indoor antenna system, comprising: a satellite gateway, a multi-system combining access platform, a power splitter or coupler, an adjustable radio frequency control unit, and an omnidirectional antenna;

[0035] The satellite gateway converts the received multi-band satellite signals into multi-band electrical signals and transmits the multi-band electrical signals to the multi-system combined access platform;

[0036] The multi-system combining access platform combines and outputs multi-band electrical signals to at least one power splitter or coupler;

[0037] The power splitter or coupler distributes the multi-band electrical signals output by the multi-system combined access platform to the omnidirectional antenna through the adjustable radio frequency control unit;

[0038] The adjustable RF control unit is used to adjust the delay of the received multi-band electrical signals according to the preset delay parameters, and / or adjust the gain of the received multi-band electrical signals according to the preset gain parameters, and transmit the adjusted signals to the omnidirectional antenna.

[0039] The omnidirectional indoor antenna system provided in this embodiment uses a satellite gateway to receive multi-band satellite signals and convert them into multi-band electrical signals, which are then transmitted to a multi-system combining access platform. The multi-system combining access platform combines the received multi-band electrical signals and outputs them to multiple power splitters or couplers. The power splitters or couplers transmit the multi-band electrical signals to a frequency-adjustable control unit. The frequency-adjustable control unit performs delay adjustment and / or gain adjustment on the multi-band electrical signals, and then transmits the adjusted signals to the omnidirectional antenna.

[0040] Among them, the satellite gateway forwards multi-band satellite signals to the multi-system combined access platform to achieve wide-range satellite signal coverage. In some methods, the satellite gateway amplifies the received multi-band satellite signals, converts the amplified satellite signals into electrical signals, transmits the electrical signals to the multi-system combined access platform, and filters the amplified satellite signals to remove invalid signals or low-quality signals to ensure the signal quality of subsequent transmission and processing. The satellite gateway analyzes the satellite observation data through the storage and program control module to obtain observation parameters such as clock error, and sets multi-frequency program control parameters. The multi-frequency program control parameters include the frequency band of the satellite signal selected for use, the gain parameter adjustment range for satellite signals in different frequency bands, and the delay parameter adjustment range for satellite signals in different frequency bands. The clock error, multi-frequency program control parameters and other related information are forwarded to the adjustable radio frequency control unit.

[0041] In some embodiments, the adjustable radio frequency control unit includes a fixed gain amplifier and at least one variable gain amplifier;

[0042] The fixed gain amplifier is used to amplify the received multi-band electrical signal according to a preset fixed gain parameter to obtain an amplified multi-band electrical signal;

[0043] At least one variable gain amplifier is used to amplify the amplified multi-band electrical signal according to a preset variable gain parameter; wherein the variable gain parameter is set based on a gain parameter adjustment range.

[0044] In this embodiment, the adjustable RF control unit can be used to adjust the gain of multi-band electrical signals, ensuring their strength and quality during transmission, achieving satellite signal coverage, and providing assisted positioning. The adjustable RF control unit includes a fixed-gain amplifier and one or more variable-gain amplifiers. The fixed-gain amplifiers initially amplify received multi-band electrical signals according to fixed gain parameters to ensure that the signal strength meets transmission requirements. The variable-gain amplifiers then amplify the signals according to the configured variable gain parameters to achieve signal gain adjustment.

[0045] In some embodiments, the variable gain parameter includes a plurality of variable gain parameters for different frequency bands;

[0046] At least one variable gain amplifier is used to amplify the amplified electrical signal of the corresponding frequency band according to each variable gain parameter.

[0047] In this embodiment, corresponding variable gain parameters can be set for electrical signals in multiple frequency bands, that is, the gains of electrical signals in different frequency bands are adjusted according to different variable gain parameters, thereby optimizing the coverage and reception effects of signals in different frequency bands to adapt to complex indoor environments.

[0048] In some embodiments, the communication control unit is used to configure variable gain parameters and delay parameters of electrical signals in different frequency bands based on multi-frequency programmable parameters received from a satellite gateway.

[0049] In this embodiment, according to the signal quality and indoor coverage requirements, the communication control circuit can be used to set variable gain parameters for electrical signals in different frequency bands based on the gain parameter adjustment range in the multi-frequency programmable parameters, that is, the variable gain parameters suitable for the electrical signals in a specific frequency band are selected from the gain parameter adjustment range of the electrical signals in the frequency band. For example, a first gain parameter is set for the electrical signals in the first frequency band, and the first gain parameter is within the gain parameter adjustment range of the electrical signals in the first frequency band (corresponding to the gain parameter adjustment range of the satellite signals in the corresponding frequency band); a second gain parameter is set for the electrical signals in the second frequency band, and the second gain parameter is within the gain parameter adjustment range of the electrical signals in the second frequency band; the setting method and value of the variable gain parameters are not specifically limited.

[0050] In some embodiments, the adjustable radio frequency control unit includes a phase shifter and at least one delay circuit;

[0051] The phase shifter is used to phase-modulate the received multi-band electrical signal to obtain a phase-modulated multi-band electrical signal;

[0052] The delay circuit is used to perform delay adjustment on the phase-modulated multi-band electrical signals according to a preset delay parameter; wherein the delay parameter is set based on a delay parameter adjustment range.

[0053] In this embodiment, the adjustable RF control unit can be used to adjust the delay of multi-band electrical signals, ensuring synchronization during transmission and providing assisted positioning. The adjustable RF control unit includes a phase shifter and one or more delay circuits. For received multi-band electrical signals, the phase shifter first performs phase adjustment based on the clock error received from the satellite gateway. Phase adjustment is then used to correct the phase of signals in different frequency bands. Delay adjustment is then performed based on the phase-corrected signals to ensure that subsequent delays are consistent. The delay circuit then adjusts the delay of the electrical signals according to the configured delay parameters.

[0054] In some embodiments, the delay parameter includes a plurality of delay parameters for different frequency bands;

[0055] The time delay circuit is used to perform time delay adjustment on the electrical signal of the corresponding frequency band after phase modulation according to each time delay parameter.

[0056] In this embodiment, corresponding delay parameters can be set for electrical signals in multiple frequency bands, that is, the delay of electrical signals in different frequency bands can be adjusted according to different delay parameters. By delaying electrical signals in different frequency bands to different degrees, the auxiliary positioning function can be achieved by utilizing the delay of multi-frequency electrical signals with time differentiation. In some methods, in delay difference positioning, the distance and position of the signal source can be calculated by measuring the arrival time difference of signals from different receivers. Due to the different signal propagation characteristics of different frequency bands, low-frequency signals propagate farther, and high-frequency signals are more suitable for ranging. Combining the delays of signals in different frequency bands can improve the accuracy of positioning in multi-path and complex environments.

[0057] In some embodiments, a communication control circuit can be used to set delay parameters for electrical signals in different frequency bands based on the delay parameter adjustment range in the multi-frequency programmable parameters. That is, a delay parameter suitable for the electrical signal in a specific frequency band is selected from the delay parameter adjustment range of the electrical signal in that frequency band. For example, a first delay parameter is set for the electrical signal in the first frequency band, and the first delay parameter is within the delay parameter adjustment range of the electrical signal in the first frequency band (corresponding to the delay parameter adjustment range of the satellite signal in the corresponding frequency band). A second delay parameter is set for the electrical signal in the second frequency band, and the second delay parameter is within the delay parameter adjustment range of the electrical signal in the second frequency band. The setting method and value of the delay parameters are not specifically limited. The delay circuit can be implemented based on a variable delay line. For different delay parameters, corresponding multi-stage delay lines can be set to achieve corresponding delay adjustment.

[0058] like Figure 2As shown, in some embodiments, the adjustable RF control unit includes a power supply unit, a communication control unit, a phase shifter, a first-stage amplifier, a first-stage delay line, a second-stage amplifier, a second-stage delay line, a third-stage amplifier, and a third-stage delay line, and the power supply unit is used to supply power to the adjustable RF control unit. The adjustable RF control unit receives multi-band electrical signals from a power divider or coupler, as well as clock errors, multi-frequency programmable parameters, and other parameters from a satellite gateway. The received multi-band electrical signals are phase-modulated using a phase shifter. The phase-modulated multi-band electrical signals are amplified by a first-stage amplifier according to a fixed gain parameter. The amplified multi-band electrical signals are then delayed by a first-stage delay line according to a preset first-stage delay parameter. Based on the application scenario and actual needs, electrical signals of specific frequencies are amplified by a second-stage amplifier according to a set second-stage gain parameter. The amplified electrical signals of the specific frequency band are then delayed by a second-stage delay line according to a preset second-stage delay parameter. If the amplified and delayed electrical signals of the specific frequency band meet the requirements, they are output to the omnidirectional antenna. If they still do not meet the requirements, they are amplified by a third-stage amplifier according to a set third-stage gain parameter. The amplified electrical signals of the specific frequency band are then delayed by a third-stage delay line according to a preset third-stage delay parameter. The amplified and delayed electrical signals of the specific frequency band are then output to the omnidirectional antenna. The above is only an exemplary structural description of the adjustable RF control unit. The number and configuration of amplifiers and delay lines can be configured according to the application scenario. This example is not intended to limit the structural configuration of the adjustable RF control unit.

[0059] In some embodiments, the omnidirectional indoor antenna system further includes a multi-band extension unit for frequency band expansion, with the feed end of the omnidirectional antenna connected to the multi-band extension unit. When the omnidirectional antenna's environment requires frequency band expansion, the multi-band extension unit can be used to perform frequency band expansion and further processing of the signal using parasitic branches, thereby supporting access and transmission of signals in more frequency bands and improving the antenna's applicability and coverage.

[0060] In some implementations, omnidirectional antennas are used to omnidirectionally radiate signals processed by the adjustable RF control unit, ensuring that the signal is radiated with approximately equal gain in all horizontal directions, achieving omnidirectional coverage and supporting the same directivity pattern for multi-band signals. Depending on the application scenario and multi-band requirements, different omnidirectional antenna models can be selected to achieve optimal performance and coverage.

[0061] Omnidirectional antennas include radiating elements and matching networks. The radiating elements, composed of multiple vertically arranged antenna elements, achieve uniform, omnidirectional signal radiation in the horizontal direction. The antenna elements are precisely designed to ensure that signals in different frequency bands are radiated with approximately equal gain. The matching network adjusts the impedance matching between the antenna and the RF signal, optimizing it based on the requirements of different frequency bands to improve transmission quality and ensure optimal signal transmission efficiency.

[0062] In some embodiments, a modular design can be employed. Based on an adjustable RF control unit and a multi-band expansion unit, the antenna can be configured with the same directivity pattern to support signals in different frequency bands. Customizable models can be tailored to the application scenario and actual needs, enhancing the antenna's adaptability and configuration flexibility. This modular system integration approach can reduce deployment and maintenance costs, improve system affordability and scalability, and provide an effective solution for communication and assisted positioning in complex indoor environments.

[0063] In some embodiments, the omnidirectional indoor antenna system can support multi-band signals of multiple satellite positioning systems, such as GPS (Global Positioning System), Beidou Navigation Satellite System (BDS), Galileo, GLONASS, etc. The multi-band signals include but are not limited to L1, L2, L5, B1, B2, B3 and other bands. Different frequency bands can be selected according to the application scenario, supporting multi-band signal coverage and indoor auxiliary positioning functions, which can improve the adaptability and stability of the antenna in complex indoor environments.

[0064] In some embodiments, the omnidirectional indoor antenna also supports major mobile communication frequency bands, as shown in Table 1.

[0065] Table 1 Supported mobile communication frequency bands

[0066]

[0067] The omnidirectional indoor antenna system provided in the embodiment of the present application can access multi-band satellite signals and mobile communication bands through a satellite gateway, a multi-system combining access platform, an adjustable radio frequency control unit, etc., and uses the adjustable radio frequency control unit to perform delay adjustment and / or gain adjustment on the received multi-band signals. This can improve the coverage range and signal quality of multi-band signals in indoor environments, reduce blind spots and weak signal areas in signal coverage, perform personalized gain adjustment and delay adjustment for signals in different frequency bands, improve the flexibility and adaptability of the antenna in different application environments, and realize auxiliary positioning functions in indoor environments, ensuring that the system can operate efficiently and stably within the coverage range of different satellite positioning systems.

[0068] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present disclosure, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0069] In addition, to simplify the description and discussion, and in order not to make the embodiment of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the accompanying drawings provided. In addition, the device can be shown in the form of a block diagram to avoid making the embodiment of the present application difficult to understand, and this also takes into account the following fact, that is, the details of the implementation method of these block diagram devices are highly dependent on the platform to be implemented in the embodiment of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). When specific details (for example, circuits) are set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that the embodiment of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0070] Although the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art based on the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0071] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of this disclosure.

Claims

1. An omnidirectional indoor antenna system, characterized in that: include: Satellite gateway, multi-system combining access platform, power splitter or coupler, adjustable radio frequency control unit and omnidirectional antenna; The satellite gateway converts the received multi-band satellite signals into multi-band electrical signals, and transmits the multi-band electrical signals to the multi-system combined access platform; The multi-system combining access platform combines and outputs electrical signals of multiple frequency bands to at least one power splitter or coupler; The power splitter or coupler distributes the multi-band electrical signals output by the multi-system combined access platform to the omnidirectional antenna through the adjustable radio frequency control unit; The adjustable radio frequency control unit is used to adjust the delay of the received multi-band electrical signals according to the preset delay parameters, and / or adjust the gain of the received multi-band electrical signals according to the preset gain parameters, and transmit the adjusted signals to the omnidirectional antenna.

2. The system according to claim 1, wherein: The satellite gateway is used to set multi-frequency program-controlled parameters, which include gain parameter adjustment ranges for satellite signals in different frequency bands and delay parameter adjustment ranges for satellite signals in different frequency bands, and send the multi-frequency program-controlled parameters to the adjustable radio frequency control unit.

3. The system according to claim 1, wherein: The adjustable radio frequency control unit includes a fixed gain amplifier and at least one variable gain amplifier; The fixed gain amplifier is used to amplify the received multi-band electrical signal according to a preset fixed gain parameter to obtain an amplified multi-band electrical signal; The at least one variable gain amplifier is used to amplify the amplified multi-band electrical signal according to a preset variable gain parameter; wherein the variable gain parameter is set based on the gain parameter adjustment range.

4. The system according to claim 3, characterized in that The variable gain parameter includes a plurality of variable gain parameters for different frequency bands; The at least one variable gain amplifier is used to amplify the amplified electrical signal of the corresponding frequency band according to each variable gain parameter.

5. The system according to claim 2, wherein: The adjustable radio frequency control unit includes a phase shifter and at least one delay circuit; The phase shifter is used to perform phase modulation on the received multi-band electrical signal to obtain a phase-modulated multi-band electrical signal; The delay circuit is used to perform delay adjustment on the phase-modulated multi-band electrical signal according to a preset delay parameter; wherein the delay parameter is set based on the delay parameter adjustment range.

6. The system according to claim 5, characterized in that The delay parameter includes multiple delay parameters for different frequency bands; The time delay circuit is used to perform time delay adjustment on the electrical signal of the corresponding frequency band after phase modulation according to each time delay parameter.

7. The system according to any one of claims 2 to 6, characterized in that: The adjustable radio frequency control unit includes a communication control unit, which is used to configure variable gain parameters and delay parameters of electrical signals in different frequency bands based on the multi-frequency programmable parameters.

8. The system according to claim 1, wherein: The adjustable radio frequency control unit includes a communication control unit, a phase shifter, a first-stage amplifier, a first-stage delay line, a second-stage amplifier, a second-stage delay line, a third-stage amplifier and a third-stage delay line; The phase shifter is used to perform phase modulation processing on the received multi-band electrical signal, the phase-modulated multi-band electrical signal is amplified by the first-stage amplifier according to a fixed gain parameter, and the amplified multi-band electrical signal is delayed by the first-stage delay line according to a preset first-stage delay parameter; For electrical signals of a specific frequency, the electrical signals are amplified by the second-stage amplifier according to the preset second-stage gain parameters, and the amplified electrical signals of the specific frequency band are delayed by the second-stage delay line according to the preset second-stage delay parameters. If the electrical signals of the specific frequency band meet the requirements after amplification and delay processing, they are output to the omnidirectional antenna. If the requirements are not met, the electrical signals are amplified by the three-stage amplifier according to the preset three-stage gain parameters, and the amplified electrical signals of the specific frequency band are delayed by the three-stage delay line according to the preset three-stage delay parameters.

9. The system according to claim 1, wherein: It also includes a multi-band extension unit for frequency band extension, and the feeding end of the omnidirectional antenna is connected to the multi-band extension unit.

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