CN113381779B - Ultra wideband receiver - Google Patents
Ultra wideband receiver Download PDFInfo
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- CN113381779B CN113381779B CN202110662180.XA CN202110662180A CN113381779B CN 113381779 B CN113381779 B CN 113381779B CN 202110662180 A CN202110662180 A CN 202110662180A CN 113381779 B CN113381779 B CN 113381779B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
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- Superheterodyne Receivers (AREA)
Abstract
The present invention provides an ultra-wideband receiver, comprising: a radio frequency balun converting the single-ended radio frequency signal into a differential radio frequency signal; the ultra-wideband frequency conversion assembly is used for carrying out frequency conversion on the differential radio frequency signals based on local oscillation signals of a preset frequency band and outputting differential intermediate frequency signals; the intermediate frequency balun is connected to the output end of the ultra-wideband frequency conversion assembly and converts the differential intermediate frequency signal into a single-ended intermediate frequency signal; and the intermediate frequency signal processing module is connected to the output end of the intermediate frequency balun and is used for performing signal processing on the single-ended intermediate frequency signal. The invention can effectively reduce the volume of the broadband receiver with cross frequency bands, reduce the quantity of equipment for constructing the broadband receiver, reduce the link loss and the power consumption of the broadband receiver, and greatly improve the power stability in long-term operation through an automatic gain compensation mode, thereby having the characteristic of being directly used for system integration and effectively overcoming the defects of the prior art.
Description
Technical Field
The invention relates to the technical field of high-frequency electronics, in particular to an ultra-wideband receiver from an X wave band to a V wave band.
Background
The main function of the receiver is to amplify and process the echo reflected back after transmission, and filter the echo in a way of obtaining the maximum discrimination between useful echo and useless interference, and the receiver is widely applied to a plurality of important electronic technical fields such as signal receiving, signal processing and recognition, signal measurement test and the like. With the continuous development of the integrated circuit field and the continuous improvement of the frequency band of the existing electromagnetic wave application by human beings, the frequency band of the receiver application is also increased, the corresponding integration level is also increased, and with the rapid development of the 5G network and the 6G network age coming in the future, the whole high-frequency electronic field has higher requirements on the performance index of the receiver and the like.
The mainstream receivers are divided into short wave receivers, ultrashort wave receivers, C wave bands, X wave bands, ku\Ka wave band receivers and the like according to the characteristics and volumes of different devices and different production assembly processes (including eutectic welding, reflow welding and the like), radar signals are taken as examples, the working frequency bands of a fire control radar are more in the X wave bands and the Ku wave bands, and the working frequency bands of a missile-borne radar and an imaging radar are concentrated in the K wave bands, the Ka wave bands, the V wave bands and the like, so that when a complete set of signal receiving monitoring equipment is constructed, different receivers are often required to be combined to adapt to the application of different frequency bands or the construction of a broadband cross-frequency band receiver is completed by using a pre-selection filter and a switch. In the process of combining the receiver, a series of problems are often brought, including and not limited to, increased equipment amount, overlarge power consumption, overlarge equipment size and the like, the reliability of the equipment is further affected when the cost is greatly increased due to the overlarge equipment amount, and the service life of the equipment is shortened to a certain extent due to the integration of the equipment with the overlarge power consumption.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide an ultra-wideband receiver, which is used for solving the problems of large size, high power consumption, complex structure, high cost and the like of the receiver in the prior art.
To achieve the above and other related objects, the present invention provides an ultra-wideband receiver, including at least:
the device comprises a radio frequency balun, an ultra-wideband frequency conversion assembly, an intermediate frequency balun and an intermediate frequency signal processing module;
the radio frequency balun receives a single-ended radio frequency signal and converts the single-ended radio frequency signal into a differential radio frequency signal;
the ultra-wideband frequency conversion assembly is connected to the output end of the radio frequency balun, acquires a local oscillator signal of a preset frequency band, converts the differential radio frequency signal based on the local oscillator signal of the preset frequency band and outputs a differential intermediate frequency signal;
the intermediate frequency balun is connected to the output end of the ultra-wideband frequency conversion assembly and converts the differential intermediate frequency signal into a single-ended intermediate frequency signal;
the intermediate frequency signal processing module is connected to the output end of the intermediate frequency balun and is used for performing signal processing on the single-ended intermediate frequency signal.
Optionally, the radio frequency balun is suitable for all X-band to V-band.
Optionally, the intermediate frequency signal processing module comprises an intermediate frequency amplifier, a first numerical control attenuator, a directional coupler and a detection comparator;
the intermediate frequency amplifier receives the single-ended intermediate frequency signal and amplifies the single-ended intermediate frequency signal;
the first numerical control attenuator is connected to the output end of the intermediate frequency amplifier and used for performing gain control on the output signal of the intermediate frequency amplifier;
the directional coupler is connected to the output end of the first numerical control attenuator and is used for signal coupling;
the detection comparator is connected to the coupling output end of the directional coupler and is used for carrying out dynamic range identification on the intermediate frequency signal output by the directional coupler.
More optionally, the intermediate frequency signal processing module further comprises a low pass filter; the low-pass filter is connected between the single-ended intermediate frequency signal and the intermediate frequency amplifier, and is used for carrying out low-pass filtering on the single-ended intermediate frequency signal and then transmitting the single-ended intermediate frequency signal to the intermediate frequency amplifier for amplification.
More optionally, the ultra-wideband receiver further includes a temperature sensor, where the temperature sensor is connected to a control end of the first digitally controlled attenuator, and adjusts a gain of an output signal of the first digitally controlled attenuator based on the detected temperature information, so as to implement temperature compensation.
Optionally, the ultra-wideband receiver further comprises a low noise amplifier, and the low noise amplifier is connected to the input end of the radio-frequency balun and amplifies the single-ended radio-frequency signal.
More optionally, the ultra-wideband frequency conversion component includes a first electromagnetic switch, n frequency multipliers, n filters, a second electromagnetic switch and a mixer;
the input end of the first electromagnetic change-over switch receives local oscillation signals, the n output ends are respectively connected with the input ends of the frequency multipliers, and the local oscillation signals are input into the corresponding frequency multipliers for frequency multiplication through switch switching;
the input ends of the filters are respectively connected with the output ends of a frequency multiplier, and the output signals of the corresponding frequency multipliers are filtered to obtain local oscillation signals of preset frequency bands;
the n input ends of the second electromagnetic change-over switch are respectively connected with the output ends of the filters, the output ends are connected with the mixer, and local oscillation signals with a preset frequency range are selected to be output through switch change-over;
the frequency mixer receives a differential radio frequency signal, and down-converts the differential radio frequency signal based on a local oscillator signal of a preset frequency band output by the second electromagnetic switch to obtain the differential intermediate frequency signal;
wherein n is a natural number of 2 or more.
More optionally, the first electromagnetic switch and the second electromagnetic switch are adapted for use in an X-band to a V-band.
More optionally, the filter is a bandpass filter.
More optionally, each filter is an integrated filter bank chip.
More optionally, the filter is adapted for the X-band and above.
As described above, the ultra-wideband receiver of the present invention has the following advantageous effects:
the ultra-wideband frequency conversion component is used as a core, the local oscillation frequency is improved in a frequency multiplication mode, the characteristic that a chip filter can be integrated in a high frequency band is utilized, the form of an integrated filter bank chip is added on a local oscillation path to ensure harmonic suppression indexes, and meanwhile, the size of a receiver is greatly reduced; the analog signal receiver is formed by complete amplification, frequency conversion, filtering, amplitude control and other methods, weak radio frequency signals are changed into video signals or intermediate frequency signals with enough amplitude so as to meet the requirements of signal processing and data processing, and the analog signal receiver has the main characteristics of ultra-wideband, light weight, miniaturization and low power consumption, and simultaneously has the characteristics of high gain, low spurious, low noise coefficient and controllable gain, and is used for solving the problem of integration of signal receiving systems from an X band to a V band.
Drawings
Fig. 1 shows a schematic structure of an ultra wideband receiver according to the present invention.
Fig. 2 is a schematic structural diagram of an intermediate frequency signal processing module according to the present invention.
Description of element reference numerals
1. Ultra wideband receiver
11. Radio frequency balun
12. Ultra-wideband frequency conversion assembly
121. First electromagnetic change-over switch
122. Frequency multiplier
123. Filter device
124. Second electromagnetic change-over switch
125. Mixer with a high-speed mixer
126. Buffer device
13. Intermediate frequency balun
14. Intermediate frequency signal processing module
141. Intermediate frequency amplifier
142. First numerical control attenuator
143. Directional coupler
143a matching load
144. Wave detection comparator
145. Low pass filter
146. Second digital control attenuator
15. Low noise amplifier
16. Temperature sensor
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Please refer to fig. 1-2. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
As shown in fig. 1, the present invention provides an ultra-wideband receiver 1, the ultra-wideband receiver 1 comprising:
the device comprises a radio frequency balun 11, an ultra-wideband frequency conversion assembly 12, an intermediate frequency balun 13 and an intermediate frequency signal processing module 14.
As shown in fig. 1, the rf balun 11 receives single-ended rf signals (including but not limited to those obtained from an antenna) and converts the single-ended rf signals to differential rf signals.
Specifically, the rf balun 11 is a three-port device, and includes an input end and two output ends, where the input end receives a single-ended rf signal, and the two output ends output a set of differential rf signals. The radio frequency balun 11 is a broadband radio frequency transmission line transformer, which connects a balanced transmission line circuit and an unbalanced transmission line circuit by converting a matching input into a differential output. As an example, the radio frequency balun 11 comprises two coils; one end of the first coil is connected with the single-ended radio frequency signal RF, and the other end of the first coil is grounded; two ends of the second coil respectively output one path of signal (I/Q signal) of the differential radio frequency signal; in practical use, the structure of the rf balun 11 is not limited to this embodiment. As an example, the radio frequency balun 11 is applicable to all X-band to V-band.
As another implementation manner of the present invention, as shown in fig. 1, in this embodiment, the ultra-wideband receiver 1 further includes a low noise amplifier 15, where an input end of the low noise amplifier 15 receives a single-ended rf signal, and an output end of the low noise amplifier is connected to an input end of the rf balun 11, so as to provide the rf balun 11 with an amplified single-ended rf signal with a lower noise coefficient. In practical use, the low noise amplifier 15 may be set or the low noise amplifier 15 may not be set according to the requirement, which is not limited to the present embodiment.
As shown in fig. 1, the ultra-wideband frequency conversion component 12 is connected to the output end of the rf balun 11, acquires a local oscillation signal with a preset frequency band, and then converts the differential rf signal based on the local oscillation signal with the preset frequency band and outputs a differential intermediate frequency signal.
Specifically, in the present embodiment, the ultra-wideband frequency conversion assembly 12 includes a first electromagnetic switch 121, n frequency multipliers 122, n filters 123, a second electromagnetic switch 124, and a mixer 125.
More specifically, the first electromagnetic switch 121 includes an input end and n output ends, the input end of the first electromagnetic switch 121 receives the local oscillator signal LO, the n output ends are respectively connected to the input ends of the corresponding frequency multipliers 122, and the local oscillator signal LO is input to the corresponding frequency multipliers 122 through switching. In this embodiment, the first electromagnetic switch 121 is applicable to the X-band to the V-band.
More specifically, each frequency multiplier 122 multiplies the local oscillation signal LO by a preset multiple to increase the frequency of the local oscillation signal LO, where the frequency after the local oscillation signal LO is multiplied can meet the required intermediate frequency output frequency (including, but not limited to, 10GHz or more) after mixing, which is not limited herein. The multiples of each frequency multiplier 122 may be the same, or different multiples may be set as required, which is not described here in detail, and in this embodiment, each frequency multiplier 122 is 4 times.
More specifically, the input end of each filter 123 is connected to the output end of a frequency multiplier 122, and filters the output signal of the corresponding frequency multiplier 122 to obtain a local oscillation signal with a preset frequency band. In this embodiment, each filter 123 is a band-pass filter, and is suitable for the frequency band of the X-band or above, and the filtering frequency bands of each filter 123 are different, and specific frequency bands can be set based on the needs, which is not described here in detail. As an example, each filter 123 is an integrated chip; or the filters 123 are integrated on the same chip to form an integrated filter bank chip; thereby greatly reducing the volume.
More specifically, the second electromagnetic switch 124 includes n input ends and one output end, where the n input ends of the second electromagnetic switch 124 are respectively connected to the output ends of the filters 123, the output ends are connected to the mixer 125, and a local oscillation signal with a preset frequency band is selected for output through switching. In this embodiment, the second electromagnetic switch 124 is adapted for the X-band to V-band.
More specifically, the radio frequency input end of the mixer 125 is connected to the output end of the radio frequency balun 11, the local oscillation input end is connected to the output end of the second electromagnetic switch 124, and the differential radio frequency signal is down-converted based on the local oscillation signal of the preset frequency band output by the second electromagnetic switch 124, so as to obtain the differential intermediate frequency signal and output through the intermediate frequency output end of the mixer 125.
N is a natural number equal to or greater than 2; in the present embodiment, n is set to 3, and the value of n can be set as needed in actual use. The first electromagnetic switch 121 and the second electromagnetic switch 124 can increase the turn-off ratio, so as to effectively improve the signal isolation.
As another implementation of the present invention, the ultra-wideband frequency conversion assembly 12 further includes a buffer 126, and the buffer 126 receives the local oscillation LO and transmits the local oscillation LO to the input terminal of the first electromagnetic switch 121.
As shown in fig. 1, the intermediate frequency balun 13 is connected to the output end of the ultra-wideband frequency conversion assembly 12, and converts the differential intermediate frequency signal into a single-ended intermediate frequency signal.
Specifically, the intermediate frequency balun 13 is a three-port device, and includes two input ends and an output end, where the two input ends receive differential intermediate frequency signals, and the output end outputs single-ended intermediate frequency signals. As an example, the intermediate frequency balun 13 comprises two coils; two ends of the first coil are respectively connected with one signal (I/Q signal) of the differential intermediate frequency signal; one end of the second coil outputs the single-ended intermediate frequency signal, and the other end of the second coil is grounded; in practical use, the structure of the intermediate frequency balun 13 is not limited, but is not limited to this embodiment.
As shown in fig. 1, the intermediate frequency signal processing module 14 is connected to the output end of the intermediate frequency balun 13, and performs signal processing on the single-ended intermediate frequency signal.
Specifically, as shown in fig. 2, the intermediate frequency signal processing module 14 includes an intermediate frequency amplifier 141, a first digitally controlled attenuator 142, a directional coupler 143, and a detection comparator 144.
More specifically, the intermediate frequency amplifier 141 receives the single-ended intermediate frequency signal and amplifies the single-ended intermediate frequency signal.
More specifically, the first digitally controlled attenuator 142 is connected to the output end of the intermediate frequency amplifier 141, and performs gain control on the output signal of the intermediate frequency amplifier 141. As an example, the first digitally controlled attenuator 142 can perform gain control of 0dB to 90dB by performing gain amount and gain step control through digital control (provided by external hardware or software). The range of gain control can be set according to the need in practical use, and is not limited to this embodiment.
More specifically, the directional coupler 143 is connected to an output end of the first digitally controlled attenuator 142 for signal coupling. The directional coupler 143 includes an input, a pass-through output, a coupling output, and a load matching terminal. The input end of the directional coupler 143 is connected with the output end of the first numerical control attenuator 142; the direct output end of the directional coupler 143 outputs the processed intermediate frequency signal; the coupling output end of the directional coupler 143 outputs a coupling signal; the load matching end of the directional coupler 143 is connected to a matching load 143a, which matching load 143a includes, by way of example, but is not limited to, a 50Ω load.
As shown in fig. 1, the detection comparator 144 is connected to the coupling output end of the directional coupler 143, and performs dynamic range identification on the intermediate frequency signal output by the directional coupler 143.
Specifically, the detection comparator 144 receives the coupling signal output from the directional coupler 143, compares the coupling signal with a reference level Vref, and outputs a comparison result Dec Bit to realize dynamic range identification. As an example, the detection comparator 144 supports the identification of the dynamic range of the intermediate frequency signal of-70 dBm to +15dBm, and in practical use, the identification range of the detection comparator can be set based on the actual requirement, which is not limited to the present embodiment.
As another implementation of the present invention, the intermediate frequency signal processing module 14 further includes a low pass filter 145; the low-pass filter 145 is connected between the single-ended intermediate frequency signal and the intermediate frequency amplifier 141, and transmits the single-ended intermediate frequency signal to the intermediate frequency amplifier 141 for amplification after low-pass filtering. As an example, the low-pass filter 145 is used for passing signals with frequencies below 1GHz, but not limited to, and in practical use, may be set based on practical needs, and is not limited to the present embodiment.
As another implementation of the present invention, the intermediate frequency signal processing module 14 further includes a second digital attenuator 146; the second digital attenuator 146 is connected to the through output end of the directional coupler 143, and performs further gain control on the output intermediate frequency signal.
As another implementation manner of the present invention, the ultra wideband receiver 1 further includes a temperature sensor 16, where the temperature sensor 16 is connected to a control end of the first digitally controlled attenuator 142 (and/or the second digitally controlled attenuator 146), and adjusts a gain of an output signal of the first digitally controlled attenuator 142 (and/or the second digitally controlled attenuator 146) based on the detected temperature information in combination with digital control of the first digitally controlled attenuator 142, so as to implement temperature compensation. In this embodiment, the temperature sensor 16 can identify the temperature within the range of-40 ℃ to +65 ℃, and the sensor with the corresponding temperature range can be selected according to the needs in actual use, which is not described in detail herein.
The lower the signal frequency is, the greater the difficulty of filter integration is, therefore, the size of the receiver is difficult to reduce, and the corresponding system needs to be repeatedly built based on different requirements, so that the engineering quantity is large, errors are easy to introduce, and the stability is poor. The invention improves the local oscillation frequency by integrating frequency multiplication to reduce the volume of the device, thereby meeting the condition of filter integration, inhibiting the harmonic wave and spurious of the local oscillation signal, effectively reducing the volume of the receiver on the premise of ensuring the performance, being suitable for miniaturized development, reducing the equipment quantity for constructing a broadband receiver, reducing the link loss and the power consumption of the broadband receiver, greatly improving the power stability in long-term working through an automatic gain compensation mode, further having the characteristic of being directly used for system integration and effectively overcoming the defects of the prior art.
In summary, the present invention provides an ultra-wideband receiver, which includes: the device comprises a radio frequency balun, an ultra-wideband frequency conversion assembly, an intermediate frequency balun and an intermediate frequency signal processing module; the radio frequency balun receives a single-ended radio frequency signal and converts the single-ended radio frequency signal into a differential radio frequency signal; the ultra-wideband frequency conversion assembly is connected to the output end of the radio frequency balun, acquires a local oscillator signal of a preset frequency band, converts the differential radio frequency signal based on the local oscillator signal of the preset frequency band and outputs a differential intermediate frequency signal; the intermediate frequency balun is connected to the output end of the ultra-wideband frequency conversion assembly and converts the differential intermediate frequency signal into a single-ended intermediate frequency signal; the intermediate frequency signal processing module is connected to the output end of the intermediate frequency balun and is used for performing signal processing on the single-ended intermediate frequency signal. The ultra-wideband frequency conversion component is used as a core, the local oscillation frequency is improved in a frequency multiplication mode, the characteristic that a chip filter can be integrated in a high frequency band is utilized, the form of an integrated filter bank chip is added on a local oscillation path to ensure harmonic suppression indexes, and meanwhile, the size of a receiver is greatly reduced; the analog signal receiver is formed by complete amplification, frequency conversion, filtering, amplitude control and other methods, weak radio frequency signals are changed into video signals or intermediate frequency signals with enough amplitude so as to meet the requirements of signal processing and data processing, and the analog signal receiver has the main characteristics of ultra-wideband, light weight, miniaturization and low power consumption, and simultaneously has the characteristics of high gain, low spurious, low noise coefficient and controllable gain, and is used for solving the problem of integration of signal receiving systems from an X band to a V band. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. An ultra-wideband receiver, the ultra-wideband receiver comprising at least:
the device comprises a radio frequency balun, an ultra-wideband frequency conversion assembly, an intermediate frequency balun and an intermediate frequency signal processing module;
the radio frequency balun receives a single-ended radio frequency signal and converts the single-ended radio frequency signal into a differential radio frequency signal;
the ultra-wideband frequency conversion assembly is connected to the output end of the radio frequency balun, acquires a local oscillator signal of a preset frequency band, converts the differential radio frequency signal based on the local oscillator signal of the preset frequency band and outputs a differential intermediate frequency signal; the ultra-wideband frequency conversion assembly comprises a first electromagnetic change-over switch, n frequency multipliers, n filters, a second electromagnetic change-over switch and a mixer; the input end of the first electromagnetic change-over switch receives local oscillation signals, the n output ends are respectively connected with the input ends of the frequency multipliers, and the local oscillation signals are input into the corresponding frequency multipliers for frequency multiplication through switch switching; the input ends of the filters are respectively connected with the output ends of a frequency multiplier, and the output signals of the corresponding frequency multipliers are filtered to obtain local oscillation signals of preset frequency bands; the n input ends of the second electromagnetic change-over switch are respectively connected with the output ends of the filters, the output ends are connected with the mixer, and local oscillation signals with a preset frequency range are selected to be output through switch change-over; the frequency mixer receives a differential radio frequency signal, and down-converts the differential radio frequency signal based on a local oscillator signal of a preset frequency band output by the second electromagnetic switch to obtain the differential intermediate frequency signal; n is a natural number greater than or equal to 2;
the intermediate frequency balun is connected to the output end of the ultra-wideband frequency conversion assembly and converts the differential intermediate frequency signal into a single-ended intermediate frequency signal;
the intermediate frequency signal processing module is connected to the output end of the intermediate frequency balun and is used for performing signal processing on the single-ended intermediate frequency signal; the intermediate frequency signal processing module comprises an intermediate frequency amplifier, a first numerical control attenuator, a directional coupler and a detection comparator; the intermediate frequency amplifier receives the single-ended intermediate frequency signal and amplifies the single-ended intermediate frequency signal; the first numerical control attenuator is connected to the output end of the intermediate frequency amplifier and used for performing gain control on the output signal of the intermediate frequency amplifier; the directional coupler is connected to the output end of the first numerical control attenuator and is used for signal coupling; the detection comparator is connected to the coupling output end of the directional coupler and is used for carrying out dynamic range identification on the intermediate frequency signal output by the directional coupler.
2. The ultra-wideband receiver of claim 1, wherein: the radio frequency balun is suitable for all X wave bands to V wave bands.
3. The ultra-wideband receiver of claim 1, wherein: the intermediate frequency signal processing module further comprises a low-pass filter; the low-pass filter is connected between the single-ended intermediate frequency signal and the intermediate frequency amplifier, and is used for carrying out low-pass filtering on the single-ended intermediate frequency signal and then transmitting the single-ended intermediate frequency signal to the intermediate frequency amplifier for amplification.
4. The ultra-wideband receiver of claim 1, wherein: the ultra-wideband receiver further comprises a temperature sensor, wherein the temperature sensor is connected to the control end of the first numerical control attenuator, and the gain of the output signal of the first numerical control attenuator is adjusted based on the detected temperature information so as to realize temperature compensation.
5. The ultra-wideband receiver of claim 1, wherein: the ultra-wideband receiver further comprises a low noise amplifier, wherein the low noise amplifier is connected to the input end of the radio frequency balun and is used for amplifying the single-ended radio frequency signal.
6. The ultra-wideband receiver of claim 1, wherein: the first electromagnetic change-over switch and the second electromagnetic change-over switch are applicable to X wave bands to V wave bands.
7. The ultra-wideband receiver of claim 1, wherein: the filter is a band-pass filter.
8. The ultra-wideband receiver of claim 7, wherein: each filter is an integrated filter bank chip.
9. The ultra-wideband receiver of claim 7, wherein: the filter is suitable for the X-band and above.
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