Output power system for 6ghz to 12.75ghz signal sources

Abstract

This invention relates to an output power system for a 6GHz to 12.75GHz signal source, comprising an input unit, a pass-through unit, a first power amplifier unit, a second power amplifier unit, and an output unit. The input terminal of the input unit receives radio frequency signals, and the output terminal of the input unit is connected to the input terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The input terminal of the output unit is connected to the output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The output power system for a 6GHz to 12.75GHz signal source using this invention improves upon the standing wave instability caused by the soldering required by conventional flange-type SMA connectors, achieving better standing wave performance, better broadband frequency response, flexible adjustment of power gain and power consumption / heat dissipation, reduced selection difficulty, higher output power and signal quality, improved heat dissipation capacity, and enhanced long-term stability and reliability.

Description

Technical Field

[0001] This invention relates to the field of microwave radio frequency technology, and more particularly to the field of output power of high frequency signal sources, specifically to an output power system for signal sources from 6 GHz to 12.75 GHz. Background Technology

[0002] In modern wireless communication, electronic warfare, radar systems, and automated testing equipment, high-frequency, high-power, and stable signal sources are indispensable core components. The performance of their output ports directly determines the accuracy, reliability, and dynamic range of the entire system test. The 6-12.75GHz band (covering C-band, X-band, and part of Ku-band) is a critical frequency band for applications such as satellite communication, point-to-point wireless transmission, and military radar, placing extremely high demands on the output power, signal quality, and wideband frequency response of signal sources in these bands.

[0003] However, existing output circuit structures for such high-frequency signal sources typically face several interrelated and difficult-to-reconcile technical challenges when pursuing high power output: 1. Design challenges in output power, amplifier performance, and broadband frequency response To achieve high power output, a power amplifier is typically required after the signal source output stage. However, high-power amplifiers operating in the 6-12.75 GHz wideband are inherently expensive to design and develop, making it difficult to achieve with a single power amplifier. Furthermore, while providing high gain, power amplifiers introduce nonlinear distortion, noise, and significantly worsen system power consumption and heat dissipation. The heat generated can affect the long-term stability and reliability of the system. More importantly, power amplifiers often exhibit inherent frequency response unevenness across a wide bandwidth, meaning the gain fluctuates with frequency.

[0004] 2. Port VSWR degradation problem: The VSWR (Standing Wave Ratio) of a signal source's output port is a key indicator of the output signal quality. A good VSWR means that energy can be efficiently transferred to the load, with minimal signal reflection, ensuring signal purity and amplitude accuracy. The main pain point in existing designs lies in the input / output connectors themselves. Ordinary flange SMA connectors use soldered pins and pads, but manual soldering is unpredictable and often results in poor VSWR after soldering. Furthermore, grounding via screw-fixed flanges leads to less than ideal grounding near the pins.

[0005] In summary, existing technologies lack a consistent, highly integrated solution capable of simultaneously optimizing high power output over a wide bandwidth (6-12.75 GHz), excellent input / output VSWR, efficient gain control, and superior and well-documented broadband frequency response characteristics within a compact circuit structure. Therefore, an innovative design approach is urgently needed to overcome these shortcomings and meet the growing demands of high-end microwave test and application fields. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an output power system for signal sources from 6 GHz to 12.75 GHz that satisfies excellent standing wave characteristics, controllable gain, and optimized broadband frequency response characteristics.

[0007] To achieve the above objectives, the output power system for a 6GHz to 12.75GHz signal source according to the present invention is as follows: The output power system for signal sources from 6GHz to 12.75GHz is characterized by comprising an input unit, a pass-through unit, a first power amplifier unit, a second power amplifier unit, and an output unit. The input terminal of the input unit receives radio frequency (RF) signals, and the output terminal of the input unit is connected to the input terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The input terminal of the output unit is connected to the output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The pass-through unit is used for non-amplified pass-through of RF signals and equalization of the broadband frequency response. The first power amplifier unit and the second power amplifier unit are used for high-power amplification of the RF signals. The output terminal of the output unit is used to output the processed RF signals.

[0008] Preferably, the input unit includes a first input connector, a first digitally controlled attenuator, a first radio frequency switch, and a second radio frequency switch. The first input connector is connected to the input terminal of the first digitally controlled attenuator, the output terminal of the first digitally controlled attenuator is connected to the input terminal of the first radio frequency switch, the two output terminals of the first radio frequency switch are respectively connected to the input terminal of the pass-through unit and the input terminal of the second radio frequency switch, and the two output terminals of the second radio frequency switch are respectively connected to the input terminal of the first power amplifier unit and the input terminal of the second power amplifier unit. The first digitally controlled attenuator is used to provide a first-stage power regulation.

[0009] Preferably, the pass-through unit includes a second digitally controlled attenuator, a first equalizer, and a second equalizer. The input terminal of the second digitally controlled attenuator is connected to the output terminal of the first RF switch of the input unit. The second digitally controlled attenuator, the first equalizer, and the second equalizer are connected in sequence. The output terminal of the second equalizer is connected to the input terminal of the output unit. The second digitally controlled attenuator is used to provide an additional second-stage power adjustment range in the pass-through state.

[0010] Preferably, the first power amplifier unit includes a third equalizer, a first fixed attenuator, and a first high-power amplifier. The input terminal of the third equalizer is connected to the output terminal of the second RF switch of the input unit. The third equalizer, the first fixed attenuator, and the first high-power amplifier are connected in sequence. The output terminal of the first high-power amplifier is connected to the input terminal of the output unit. The second power amplifier unit includes a fourth equalizer, a second fixed attenuator, and a second high-power amplifier. The input terminal of the fourth equalizer is connected to the output terminal of the second RF switch of the input unit. The fourth equalizer, the second fixed attenuator, and the second high-power amplifier are connected in sequence. The output terminal of the second high-power amplifier is connected to the input terminal of the output unit.

[0011] Preferably, the output unit includes a third RF switch and a first output connector. The output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit are respectively connected to the input terminal of the third RF switch. The third RF switch selects and outputs signals from the pass-through unit, the first power amplifier unit, or the second power amplifier unit. The output terminal of the third RF switch is connected to the first output connector.

[0012] Preferably, the first input connector of the input unit and the first output connector of the output unit are crimp-type SMA connectors.

[0013] Preferably, the system adjusts the amplification gain of the first high-power amplifier and the second high-power amplifier by controlling the gate voltages of the first high-power amplifier and the second high-power amplifier.

[0014] Preferably, the system further includes a shielding cover made of brass, with heat dissipation copper pillars and thermal grease provided at the first high-power amplifier and the second high-power amplifier.

[0015] Preferably, the third RF switch is a low-loss RF switch, and an RF DC blocking capacitor is provided on the path of the output unit.

[0016] Preferably, the system controls the switching on and off of the pass-through unit, the first high-power amplifier, and the second high-power amplifier by controlling a power switch.

[0017] Preferably, the first power amplifier unit is used to amplify the power of radio frequency signals in the 6GHz to 9GHz band; the second power amplifier unit is used to amplify the power of radio frequency signals in the 9GHz to 12.75GHz band.

[0018] The output power system for signal sources using this invention, designed for 6GHz to 12.75GHz signal sources, improves standing wave instability and grounding performance compared to conventional flange-type SMA connectors that require soldering, thanks to the use of a crimp-type SMA connector. This results in better standing wave performance within the 6GHz to 12.75GHz high-frequency broadband range. Better broadband frequency response is achieved through equalizers in the pass-through unit and the first and second power amplifier units. Control of the input unit, pass-through unit, and the first and second high-power amplifiers allows for more flexible adjustment of the module's power gain and heat dissipation. Using two high-power amplifiers to achieve high-power amplification in the 6GHz to 12.75GHz high-frequency broadband range reduces selection difficulty and achieves higher output power and signal quality. Optimization of the shielding cover's structure and material enhances the module's heat dissipation capacity, contributing to the long-term stability and reliability of the entire system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the output power system for a 6GHz to 12.75GHz signal source according to the present invention.

[0020] Figure 2 This is a schematic diagram of the input unit of the output power system for a 6GHz to 12.75GHz signal source according to the present invention.

[0021] Figure 3 This is a schematic diagram of the through unit of the output power system for a 6GHz to 12.75GHz signal source according to the present invention.

[0022] Figure 4 This is a schematic diagram of the first and second power amplifier units of the output power system for a 6GHz to 12.75GHz signal source according to the present invention.

[0023] Figure 5 This is a schematic diagram of the output unit of the output power system for a 6GHz to 12.75GHz signal source according to the present invention. Detailed Implementation

[0024] To more clearly describe the technical content of the present invention, the following description is provided in conjunction with specific embodiments.

[0025] The present invention provides an output power system for a 6GHz to 12.75GHz signal source, comprising an input unit, a pass-through unit, a first power amplifier unit, a second power amplifier unit, and an output unit. The input terminal of the input unit receives a radio frequency (RF) signal. The output terminal of the input unit is connected to the input terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The input terminal of the output unit is connected to the output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The pass-through unit is used for non-amplified pass-through of the RF signal and equalization of the broadband frequency response. The first power amplifier unit and the second power amplifier unit are used for high-power amplification of the RF signal. The output terminal of the output unit is used to output the processed RF signal.

[0026] In a preferred embodiment of the present invention, the input unit includes a first input connector, a first digitally controlled attenuator, a first radio frequency switch, and a second radio frequency switch. The first input connector is connected to the input terminal of the first digitally controlled attenuator, the output terminal of the first digitally controlled attenuator is connected to the input terminal of the first radio frequency switch, the two output terminals of the first radio frequency switch are respectively connected to the input terminal of the pass-through unit and the input terminal of the second radio frequency switch, and the two output terminals of the second radio frequency switch are respectively connected to the input terminal of the first power amplifier unit and the input terminal of the second power amplifier unit. The first digitally controlled attenuator is used to provide a first-stage power regulation.

[0027] In a preferred embodiment of the present invention, the pass-through unit includes a second digitally controlled attenuator, a first equalizer, and a second equalizer. The input terminal of the second digitally controlled attenuator is connected to the output terminal of the first RF switch of the input unit. The second digitally controlled attenuator, the first equalizer, and the second equalizer are connected in sequence. The output terminal of the second equalizer is connected to the input terminal of the output unit. The second digitally controlled attenuator is used to provide an additional second-stage power adjustment range in the pass-through state.

[0028] In a preferred embodiment of the present invention, the first power amplifier unit includes a third equalizer, a first fixed attenuator and a first high-power amplifier. The input terminal of the third equalizer is connected to the output terminal of the second radio frequency switch of the input unit. The third equalizer, the first fixed attenuator and the first high-power amplifier are connected in sequence. The output terminal of the first high-power amplifier is connected to the input terminal of the output unit. The second power amplifier unit includes a fourth equalizer, a second fixed attenuator, and a second high-power amplifier. The input terminal of the fourth equalizer is connected to the output terminal of the second RF switch of the input unit. The fourth equalizer, the second fixed attenuator, and the second high-power amplifier are connected in sequence. The output terminal of the second high-power amplifier is connected to the input terminal of the output unit.

[0029] In a preferred embodiment of the present invention, the output unit includes a third radio frequency switch and a first output connector. The output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit are respectively connected to the input terminal of the third radio frequency switch. The third radio frequency switch selects and outputs signals from the pass-through unit, the first power amplifier unit, or the second power amplifier unit. The output terminal of the third radio frequency switch is connected to the first output connector.

[0030] In a preferred embodiment of the present invention, the first input connector of the input unit and the first output connector of the output unit are crimp-type SMA connectors.

[0031] In a preferred embodiment of the present invention, the system adjusts the amplification gain of the first high-power amplifier and the second high-power amplifier by controlling the gate voltages of the first high-power amplifier and the second high-power amplifier.

[0032] In a preferred embodiment of the present invention, the system further includes a shielding cover made of brass, and heat dissipation copper pillars and heat dissipation silicone grease are provided at the first high-power amplifier and the second high-power amplifier.

[0033] In a preferred embodiment of the present invention, the third radio frequency switch is a low-loss radio frequency switch, and a radio frequency DC blocking capacitor is provided on the path of the output unit.

[0034] In a preferred embodiment of the present invention, the system controls the switching on and off of the pass-through unit, the first high-power amplifier, and the second high-power amplifier by controlling a power switch.

[0035] In a preferred embodiment of the present invention, the first power amplifier unit is used to amplify the power of radio frequency signals in the 6GHz to 9GHz frequency band; the second power amplifier unit is used to amplify the power of radio frequency signals in the 9GHz to 12.75GHz frequency band.

[0036] To meet the new requirements, this invention provides a power module for high-frequency signal sources that operates in the frequency band of 6GHz to 12.75GHz, can achieve high power output, has excellent standing wave characteristics, controllable gain, and optimized broadband frequency response characteristics.

[0037] The main feature of the module provided by this invention is that the circuit structure includes an input unit, a pass-through unit, a first power amplifier unit, a second power amplifier unit, and an output unit, such as... Figure 1 As shown.

[0038] The input unit includes a first input connector, a first digitally controlled attenuator, a first radio frequency switch, and a second radio frequency switch, such as... Figure 2As shown. After the radio frequency signal is input to the first input connector, the first input connector is connected to the input terminal of the first digitally controlled attenuator; the output terminal of the first digitally controlled attenuator enters the input terminal of the first radio frequency switch; the two output terminals of the first radio frequency switch are respectively connected to the input terminals of the pass-through unit and the second radio frequency switch; the two output terminals of the second radio frequency switch are respectively connected to the input terminals of the first power amplifier unit and the second power amplifier unit.

[0039] More preferably, the first input connector is a crimp-type SMA connector, which avoids standing wave instability caused by solder joints and has a better grounding effect, which is conducive to optimizing the standing wave of the input port.

[0040] Furthermore, the pass-through unit is used for RF signal pass-through and balanced frequency response in non-power amplifier situations. The pass-through unit includes a second digitally controlled attenuator, a first equalizer, and a second equalizer, such as... Figure 3 As shown.

[0041] Even better, the power tuning range can be widened by using a second digitally controlled attenuator.

[0042] More preferably, the broadband frequency response in the cut-through state is balanced by using the first and second equalizers.

[0043] Furthermore, the first power amplifier unit is used for high-power amplification in the 6-9 GHz range. The second power amplifier unit is used for high-power amplification in the 9-12.75 GHz range. The first power amplifier unit includes a third equalizer, a first fixed attenuator, and a first high-power amplifier. The second power amplifier unit includes a fourth equalizer, a second fixed attenuator, and a second high-power amplifier, as shown below. Figure 4 As shown.

[0044] More preferably, depending on the usage requirements, the on / off state of the pass-through unit, the first high-power amplifier, and the second high-power amplifier can be controlled by controlling the power switch, thereby achieving the goal of reducing power consumption and heat dissipation.

[0045] Even better, by splitting the 6GHz to 12.75GHz frequency band into two frequency bands to amplify power, the performance requirements of a single power amplifier are transformed into the requirements of two power amplifiers, which reduces the difficulty of selection and can achieve higher power performance.

[0046] More preferably, by controlling the gate voltage (VGG) of the first and second high-power amplifiers, the amplification gain of the high-power amplifiers can be controlled, achieving more flexible power regulation.

[0047] Furthermore, the output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit are respectively connected to the input terminal of the output unit. The output unit includes a third RF switch and a first output connector, such as... Figure 5 .

[0048] More preferably, the first output connector is also a crimp-type SMA connector to improve the standing wave ratio at the output port.

[0049] More preferably, the third RF switch is a low-loss RF switch, and the DC blocking capacitor in the path is also an RF capacitor, to minimize the loss after amplification by the power amplifier unit and obtain higher maximum power.

[0050] More preferably, the shielding cover of the power module uses brass material with higher heat dissipation efficiency, and heat dissipation copper pillars and thermal grease are placed at the first high power amplifier and the second high power amplifier, and brass material is used to improve heat dissipation efficiency and reduce the impact of high power amplifier heat generation on the long-term stability and reliability of the system.

[0051] In specific embodiments of the present invention, such as Figure 1 As shown, in this embodiment, an input radio frequency signal within the frequency range of 6GHz to 12.75GHz is used.

[0052] After the radio frequency signal enters the input unit, the output terminal of the input unit is connected to the input terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively; the output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit are connected to the input terminal of the output unit, respectively; finally, only the processed radio frequency signal is output from the output terminal of the output unit.

[0053] The input unit switches between a first RF switch or a second RF switch and a pass-through unit, a first power amplifier unit, or a second power amplifier unit based on the input RF signal frequency and power gain requirements. If no amplification is required, it switches to the pass-through unit; if the 6-9GHz RF signal requires amplification, it enters the first power amplifier unit; conversely, if the 9-12.75GHz RF signal requires amplification, it enters the second power amplifier unit. Additionally, the first digitally controlled attenuator within the input unit is used to adjust the power signal of the input power amplifier, serving as the first stage of power regulation.

[0054] If the radio frequency signal passes through the pass-through unit, the second digitally controlled attenuator of the pass-through unit provides an additional power adjustment range based on the first digitally controlled attenuator.

[0055] Furthermore, the first equalizer and the second equalizer are used for frequency response equalization of the input RF signal in the range of 6 GHz to 12.75 GHz.

[0056] If the radio frequency signal passes through the first power amplifier unit, it first passes through the third equalizer to improve the signal frequency response before entering the first high-power amplifier. The gate voltage (VGG) of the first high-power amplifier is controlled according to the gain requirements to amplify the radio frequency signal and output it to the output unit.

[0057] If the radio frequency signal passes through the second power amplifier unit, it first passes through the fourth equalizer to improve the signal frequency response before entering the second high-power amplifier; the gate voltage (VGG) of the second high-power amplifier is controlled according to the gain requirements to amplify the radio frequency signal and output it to the output unit.

[0058] Furthermore, the output unit switches the third RF switch according to the RF signal frequency and power gain requirements, receives RF signals from the pass-through unit, the first power amplifier unit, or the second power amplifier unit, and finally outputs them from the output connector.

[0059] More preferably, through a multi-stage equalizer, a digitally controlled attenuator, and a high-power amplifier with adjustable gain, this module achieves a wide range of adjustable power and good broadband frequency response characteristics within the high-frequency broadband range of 6GHz to 12.75GHz.

[0060] Even better, the input and output units use crimp-type SMA connectors, which avoids standing wave degradation caused by poor connector solder joints and improves the grounding performance of the connectors.

[0061] More preferably, based on the power and frequency requirements of the input RF signal, the corresponding pass-through unit, the first power amplifier unit, or the second power amplifier unit is turned on, and the power supply to the remaining two unused units is turned off, in order to reduce the power consumption of the module.

[0062] This invention provides a power module for high-frequency signal sources that operates in the frequency band of 6GHz to 12.75GHz, can achieve high power output, has excellent standing wave characteristics, controllable gain, and optimized broadband frequency response characteristics.

[0063] In the technical solution of this invention, the direct-through unit dual equalizer and the first power amplifier unit and the second power amplifier unit are each independently configured with a dedicated equalizer. The two sub-bands of 6-9GHz and 9-12.75GHz are individually compensated for according to their respective frequency attenuation characteristics, which specifically cancels the gain fluctuations of the power amplifier and transmission line with frequency, and achieves excellent broadband response across the entire frequency band of 6-12.75GHz.

[0064] The technical solution of this invention utilizes a frequency-band independent power amplifier and a branch power supply shutdown mechanism to achieve on-demand operation of a single power amplifier, reducing power consumption and temperature drift. The signal of this invention is split into two independent power amplifiers at 6–9 GHz and 9–12.75 GHz, respectively. Only the corresponding frequency band power amplifier is activated as needed, while idle power amplifiers are powered off and shut down. The direct path is completely unused. Operating only one power amplifier significantly reduces the heat source of the entire unit, reducing amplifier temperature drift through hardware mechanisms, while simultaneously significantly reducing overall power consumption. This combination of frequency-band selection and idle power amplifier power-off temperature control reduces drift.

[0065] The digitally controlled attenuator in this invention is located far from the power amplifier's heat source, achieving stable attenuation parameters and easy calibration—a layout approach not found elsewhere. The two-stage digitally controlled attenuator (first-stage input unit and second-stage pass-through unit) of this invention is entirely positioned at the front end of the link, far from the high-power amplifier's heat-generating area, and physically isolated from the two high-power amplifiers. This avoids the high-temperature radiation generated by the amplifiers, resulting in minimal temperature fluctuations in the attenuator's environment. The nominal attenuation value is less prone to thermal drift, significantly reducing the difficulty of factory and field calibration. The optimized layout of the attenuator being positioned before the heat source further enhances its effectiveness.

[0066] The technical solution of this invention features a multi-level equalization design with independent channels, a dual equalizer connected in series in the through unit, and two power amplifier units each equipped with an independent equalizer. It provides differentiated compensation for the gain attenuation characteristics of devices in different frequency bands of 6-9GHz and 9-12.75GHz, thus solving the problem of uneven frequency response in the 6-12.75GHz ultra-wideband.

[0067] The technical solution of this invention can achieve power amplifier gate voltage regulation gain. By adjusting the gate voltage of the power amplifier, the gain of a single power amplifier can be finely adjusted, resulting in higher degree of freedom in gain adjustment, further optimizing the power amplifier operating point and reducing heat drift.

[0068] The technical solution of this invention can realize branch power switch control, controllable direct / two-way power amplifier independent power supply, and idle branch power-off hibernation, thereby reducing ineffective power consumption and device temperature rise from the source.

[0069] The technical solution of this invention enables both the pre-amplifier and post-amplifier stages to be pre-amplified to avoid the heat-generating power amplifier, thus isolating high-temperature interference, resulting in minimal temperature variation in attenuation parameters and simplified calibration. The combination of a press-fit SMA connector, brass shielding cover, power amplifier heat dissipation copper pillars, and thermal grease solves the problem of VSWR degradation in traditional soldered SMA connectors, while simultaneously optimizing heat dissipation for high-power amplifiers and improving the long-term reliability of the module. Specific implementation details of this embodiment can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0070] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0071] It should be noted that in the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means at least two.

[0072] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The output power system for signal sources using this invention, designed for 6GHz to 12.75GHz signal sources, improves standing wave instability and grounding performance compared to conventional flange-type SMA connectors that require soldering, thanks to the use of a crimp-type SMA connector. This results in better standing wave performance within the 6GHz to 12.75GHz high-frequency broadband range. Better broadband frequency response is achieved through equalizers in the pass-through unit and the first and second power amplifier units. Control of the input unit, pass-through unit, and the first and second high-power amplifiers allows for more flexible adjustment of the module's power gain and heat dissipation. Using two high-power amplifiers to achieve high-power amplification in the 6GHz to 12.75GHz high-frequency broadband range reduces selection difficulty and achieves higher output power and signal quality. Optimization of the shielding cover's structure and material enhances the module's heat dissipation capacity, contributing to the long-term stability and reliability of the entire system.

[0074] In this specification, the invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. An output power system for a signal source ranging from 6 GHz to 12.75 GHz, characterized in that, The system includes an input unit, a pass-through unit, a first power amplifier unit, a second power amplifier unit, and an output unit. The input terminal of the input unit receives radio frequency (RF) signals, and the output terminal of the input unit is connected to the input terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The input terminal of the output unit is connected to the output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit, respectively. The pass-through unit is used for non-amplified pass-through of RF signals and equalization of broadband frequency response. The first power amplifier unit and the second power amplifier unit are used for high-power amplification of RF signals. The output terminal of the output unit is used to output the processed RF signals.

2. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The input unit includes a first input connector, a first digitally controlled attenuator, a first radio frequency switch, and a second radio frequency switch. The first input connector is connected to the input terminal of the first digitally controlled attenuator, the output terminal of the first digitally controlled attenuator is connected to the input terminal of the first radio frequency switch, the two output terminals of the first radio frequency switch are respectively connected to the input terminal of the pass-through unit and the input terminal of the second radio frequency switch, and the two output terminals of the second radio frequency switch are respectively connected to the input terminal of the first power amplifier unit and the input terminal of the second power amplifier unit. The first digitally controlled attenuator is used to provide first-stage power regulation.

3. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The pass-through unit includes a second digitally controlled attenuator, a first equalizer, and a second equalizer. The input terminal of the second digitally controlled attenuator is connected to the output terminal of the first RF switch of the input unit. The second digitally controlled attenuator, the first equalizer, and the second equalizer are connected in sequence. The output terminal of the second equalizer is connected to the input terminal of the output unit. The second digitally controlled attenuator is used to provide an additional second-stage power adjustment range in the pass-through state.

4. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The first power amplifier unit includes a third equalizer, a first fixed attenuator, and a first high-power amplifier. The input terminal of the third equalizer is connected to the output terminal of the second RF switch of the input unit. The third equalizer, the first fixed attenuator, and the first high-power amplifier are connected in sequence. The output terminal of the first high-power amplifier is connected to the input terminal of the output unit. The second power amplifier unit includes a fourth equalizer, a second fixed attenuator, and a second high-power amplifier. The input terminal of the fourth equalizer is connected to the output terminal of the second RF switch of the input unit. The fourth equalizer, the second fixed attenuator, and the second high-power amplifier are connected in sequence. The output terminal of the second high-power amplifier is connected to the input terminal of the output unit.

5. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The output unit includes a third RF switch and a first output connector. The output terminals of the pass-through unit, the first power amplifier unit, and the second power amplifier unit are respectively connected to the input terminal of the third RF switch. The third RF switch selects and outputs signals from the pass-through unit, the first power amplifier unit, or the second power amplifier unit. The output terminal of the third RF switch is connected to the first output connector.

6. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The first input connector of the input unit and the first output connector of the output unit are crimp-type SMA connectors.

7. The output power system for a 6GHz to 12.75GHz signal source according to claim 4, characterized in that, The system adjusts the amplification gain of the first high-power amplifier and the second high-power amplifier by controlling the gate voltages of the first high-power amplifier and the second high-power amplifier.

8. The output power system for a 6GHz to 12.75GHz signal source according to claim 4, characterized in that, The system also includes a shielding cover made of brass, with heat dissipation copper pillars and thermal grease provided at the first high-power amplifier and the second high-power amplifier.

9. The output power system for a 6GHz to 12.75GHz signal source according to claim 5, characterized in that, The third RF switch is a low-loss RF switch, and an RF DC blocking capacitor is provided on the output unit's path.

10. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The system controls the switching on and off of the pass-through unit, the first high-power amplifier, and the second high-power amplifier by controlling a power switch.

11. The output power system for a 6GHz to 12.75GHz signal source according to claim 1, characterized in that, The first power amplifier unit is used to amplify the power of radio frequency signals in the 6GHz to 9GHz frequency band; the second power amplifier unit is used to amplify the power of radio frequency signals in the 9GHz to 12.75GHz frequency band.

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