CN211981858U - Multi-bandwidth-selection ultra-wideband radio frequency receiver - Google Patents
Multi-bandwidth-selection ultra-wideband radio frequency receiver Download PDFInfo
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- CN211981858U CN211981858U CN202020759977.2U CN202020759977U CN211981858U CN 211981858 U CN211981858 U CN 211981858U CN 202020759977 U CN202020759977 U CN 202020759977U CN 211981858 U CN211981858 U CN 211981858U
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Abstract
The utility model relates to an ultra wide band radio frequency receiver that many bandwidths selected, contain the casing and set up low noise receiving module, bandwidth selection switching module, frequency source module, coupling merit branch detection module, communication control and the power protection module inside the casing, the front of casing is provided with microwave radio frequency RF input terminal, microwave 100MHz output terminal, microwave 10MHz output terminal, microwave 2.4GHz output terminal, microwave intermediate frequency IF signal coupling output terminal and communication and power control joint; the low-noise receiving module, the bandwidth selection switching module, the frequency source module and the coupling power division detection module comprise an amplifying unit, a frequency mixing unit, a bandwidth selection unit and a coupling power division detection unit, the power control circuit adopts a power conversion filter circuit, and the power conversion filter circuit is respectively connected with each module; the utility model has the advantages of simple structure, stable and reliable operation, etc.
Description
Technical Field
The utility model relates to a microwave communication technology field, concretely relates to ultra wide band radio frequency receiver of many bandwidth options.
Background
With the development of semiconductor technology and digital communication technology, a variety of wireless communication technologies have emerged in recent years. Among these new technologies, UWB (ultra wide band) technology is a very advantageous wireless technology for transmitting data at high speed over short distances. As an important part of UWB wireless transmitters, research on ultra-wideband radio frequency receivers has received attention.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an ultra wide band radio frequency receiver that many bandwidths were selected that has simple structure, many bandwidths select, effective bandwidth broad, and frequency conversion loss is low, advantages such as job stabilization is reliable.
In order to solve the problem existing in the background art, the utility model adopts the following technical scheme: a multi-bandwidth-selection ultra-wideband radio frequency receiver comprises a shell, and a low-noise receiving module, a bandwidth selection switching module, a frequency source module, a coupling power division detection module and a communication control and power control protection module which are arranged in the shell, wherein a microwave Radio Frequency (RF) signal input terminal, a microwave 100MHz signal output terminal, a microwave 10MHz signal output terminal, a microwave 2.4GHz signal output terminal, a microwave Intermediate Frequency (IF) signal coupling output terminal and a communication and power control rectangular connector are arranged on the front surface of the shell; the low-noise receiving module comprises a microwave circuit unit and a power supply and control circuit unit, wherein the microwave circuit unit comprises a mixing circuit unit and an amplifying circuit unit; the bandwidth selection switching module comprises a microwave circuit unit and a control circuit unit, wherein the microwave circuit unit comprises a switch filtering selection circuit unit and an amplifying circuit unit; the frequency source module comprises a microwave circuit unit and a control circuit unit, wherein the microwave circuit unit comprises a dot frequency source circuit unit, a frequency hopping source circuit unit and an amplifying circuit unit; the coupling power division detection module comprises a microwave circuit unit and a control circuit unit, wherein the microwave circuit unit comprises a coupling detection circuit unit; the communication control and power control protection module adopts a power conversion filter circuit which is respectively connected with the modules.
As a further improvement of the utility model; the communication control and power control protection module adopts a power conversion filter circuit which is respectively connected with the modules, for power supply, the component adopts a rectangular connector or a VPX connector P0 connector module for power supply, and when the rectangular connector supplies power, the VPX connector is used as power supply output; when the VPX is powered, the rectangular connector serves as a power supply output.
As a further improvement of the utility model; the LNA chip of the low-noise receiving module is a low-noise-coefficient chip, the low-noise receiving module adopts a segmented mode for meeting the ultra-wideband requirement, the low-noise coefficient is guaranteed, and the chip of the mixing circuit module is a low-frequency-conversion-loss chip with good stray suppression effect.
As a further improvement of the utility model; the bandwidth selection switching module adopts filters with different bandwidths and high rectangular coefficients, and achieves multi-bandwidth combination selection and high gating performance through cascade connection of two stages of switch filter banks, and the suppression effect is good.
As a further improvement of the utility model; the frequency source module adopts a frequency source chip with small volume and high power output, and simultaneously outputs a filter with a high rectangular coefficient so as to achieve the effect of good output stray suppression.
As a further improvement of the utility model; the coupling power division detection module adopts a large dynamic range detection chip, and the specific detection input level can be adjusted according to the requirement.
As a further improvement of the utility model; the communication control and power control protection module adopts a flat microstrip structure.
As a further improvement of the utility model; the shell and each module adopt a shielding box body made of red copper and plated with gold on the inner surface.
As a further improvement of the utility model; the microwave radio frequency RF signal input terminal, the microwave 100MHz signal output terminal, the microwave 10MHz signal output terminal, the microwave 2.4GHz signal output terminal, the microwave intermediate frequency IF signal output terminal and the microwave intermediate frequency IF signal coupling output terminal adopt SMA connectors, and the existing zinc cupronickel SMA connector D330S12F06 can be used; the communication and power control joint adopts a rectangular connector.
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
1. the low-noise receiving module is adopted, so that the frequency conversion loss is low, the stray suppression is high, the miniaturization is realized, the inter-path crosstalk reflection is avoided, and the reliability and the stability of the work in a high-voltage environment are better;
2. the bandwidth selection switching module is adopted, multiple output bandwidths are selected, two stages of switch filter banks are cascaded, the bandwidth output selection is facilitated, the miniaturization is realized, the crosstalk reflection among the paths is avoided, and the reliability and the stability of the work in a high-voltage environment are better;
3. the amplifier chip and the mixer chip of the amplifier are fully grounded, and good heat dissipation is achieved;
4. the whole structure is compact, the signal frequency conversion loss is low, the working frequency band is wide, and the service life is long.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic external structural diagram of an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of an embodiment provided by the present invention;
reference numerals: a-a low noise receiving module; b, a bandwidth selection switching module; c, coupling power division detection module; d, a frequency source module; e, a communication control and power control protection module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
Referring to fig. 1 and fig. 2, the following technical solutions are adopted in the present embodiment: a multi-bandwidth selective ultra-wideband radio frequency receiver comprises a shell, and a low noise receiving module, a bandwidth selective switching module, a frequency source module, a coupling power division detection module and a communication control and power control protection module which are arranged in the shell. The front surface of the shell is provided with a microwave radio frequency RF signal input terminal, a microwave 100MHz signal output terminal, a microwave 10MHz signal output terminal, a microwave 2.4GHz signal output terminal, a microwave intermediate frequency IF signal coupling output terminal and a communication and power supply control joint.
In a further embodiment, the communication control and power control protection module adopts a power conversion filter circuit, and the power conversion filter circuit is respectively connected with the modules.
In a further embodiment, the LNA chip of the low-noise receiving module is a low-noise coefficient chip, in order to meet the ultra-wideband requirement, the input of the low-noise receiving module adopts a segmented mode to ensure a low-noise coefficient, and the chip of the mixer circuit module is a low-frequency conversion loss chip.
In a further embodiment, the bandwidth selection switching module adopts a filter with a high rectangular coefficient, and achieves multi-bandwidth combination selection and high gating performance through two-stage switch filter bank cascade connection.
In a further embodiment, the frequency source module adopts a small-size and high-power-output frequency source chip.
In a further embodiment, the coupling power division detection module employs a large dynamic range detection chip
In a further embodiment, the communication control and power control protection module adopts a flat microstrip structure.
In a further embodiment, the housing and the modules are shielding boxes made of red copper and plated with gold on the inner surfaces.
In a further embodiment, the microwave radio frequency RF signal input terminal, the microwave 100MHz signal output terminal, the microwave 10MHz signal output terminal, the microwave 2.4GHz signal output terminal, the microwave intermediate frequency IF signal output terminal, and the microwave intermediate frequency IF signal coupling output terminal are SMA connectors, and may be implemented by using an existing zinc cupronickel SMA connector D330S12F 06; the communication and power control joint adopts a rectangular connector. The utility model discloses at the during operation, direct current supply voltage signal input (DC IN) to communication control and power control protection module, power conversion filter circuit include DC/DC converter and LC filter circuit, and the DC/DC converter adopts DC → +5V, and LC filter circuit output signal arrives the aforesaid each module to provide voltage signal, control signal supplies with communication control and power control protection module through two sets of RS422 communication mode, and communication control and power control protection module control each module work inside the casing through handling received signal. The two sets of RS422 communicate to control different content, the first controls the switching of frequencies, and the second controls the selection of attenuation, bandwidth selection, switch states, etc. of the modules. The module is characterized in that 0.3-12 GHz is input through a microwave Radio Frequency (RF) signal input terminal, various bandwidths such as 3.6GHz +/-1 GHz are output through a microwave Intermediate Frequency (IF) signal output terminal, the various bandwidths are coupled and output through a microwave Intermediate Frequency (IF) signal coupling output terminal, meanwhile, the module can also output 100MHz signals through a microwave 100MHz signal input terminal, 10MHz signals through a microwave 10MHz signal output terminal, and 2.4GHz signals through a microwave 2.4GHz signal output terminal.
In a further embodiment, for the microwave 100MHz signal input terminal, a 100MHz signal can be externally input, and an internal 100MHz signal can also be used to enable the module to normally work, when a signal is input into the microwave 100MHz signal input terminal, the high level is detected inside the module, and the external input 100MHz is automatically switched; when no signal is input into the microwave 100MHz signal input terminal, the module detects low level inside and automatically switches to internal input 100 MHz.
Practice proves that the ultra-wideband radio frequency receiver with multiple bandwidth selections can achieve the following technical indexes:
1) RF operating frequency: 0.3-12 GHz;
2) IF center frequency: 3.6 GHz;
3) input power range: -78-0 dBm;
4) maximum instantaneous bandwidth:
2GHz/1GHz/0.5GHz/0.2GHz/20MHz can be switched (within a working frequency band of 6-12 GHz);
1GHz/0.5GHz/0.2GHz/20MHz can be switched (within the working frequency band of 2-6 GHz);
the frequency can be switched (within the working frequency range of 0.8-2 GHz) between 0.5GHz/0.2GHz/20 MHz;
the frequency of the signal is 0.2GHz/20MHz switchable;
5) output intermediate frequency P-1: not less than 13 dBm;
6) gain: not less than 45 dB;
7) small signal noise figure: less than or equal to 6 dB;
8) protection burning power: 2W, continuous wave, five minutes test;
9) the number of output channels: 1 path;
10) radio frequency attenuation control range: 30dB, stepping by 5dB;
11) radio frequency attenuation accuracy: + (0.3 +8% Ai) dB, Ai is the attenuation;
12) response time of the numerical control attenuator: less than or equal to 150ns, and does not contain 422 interface communication time;
13) intermediate frequency attenuation control range: 15dB, stepping by 0.5dB;
14) and (3) intermediate frequency attenuation precision: less than or equal to +/-0.3 +6% Ai) dB;
15) and (3) in-band spurious suppression of an output signal: less than or equal to-55 dBc or-55 dBm (test when outputting 0-5 dBm);
16) local oscillator signal switching time: less than or equal to 80 us;
17) reference clock:
output frequency: 10MHz;
number of output paths: 2-path;
output power: not less than 5 dBm;
output spurious suppression: not less than 50dBc;
output harmonic suppression: not less than 30dBc;
18) sampling clock:
output frequency: 2.4 GHz;
number of output paths: 1 path;
output power: 10 + -1 dBm;
output spurious suppression: not less than 60dBc;
output harmonic suppression: not less than 40dBc;
output phase noise: less than or equal to-125 dBc/Hz @1kHz;
19) working temperature: -40 ℃ to +70 ℃;
storage temperature: -55 ℃ to +70 ℃;
the utility model has the advantages of compact integral structure, stable and reliable signal output, wide working frequency band and long service life.
It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The ultra-wideband radio frequency receiver is characterized by comprising a shell, and a low noise receiving module, a bandwidth selection switching module, a frequency source module, a coupling power division detection module and a communication control and power control protection module which are arranged in the shell, wherein the front surface of the shell is provided with a microwave radio frequency RF signal input terminal, a microwave 100MHz signal output terminal, a microwave 10MHz signal output terminal, a microwave 2.4GHz signal output terminal, a microwave intermediate frequency IF signal coupling output terminal and a communication and power control joint.
2. The UWB RF receiver of claim 1 wherein the communication control and power control protection module employs a power conversion filter circuit, and the power conversion filter circuit is connected to each module.
3. The UWB RF receiver of claim 1 wherein the LNA chip of the low noise receiver module is a low noise figure (LNA) chip, and to meet the UWB requirements, the low noise receiver module input is in a segmented mode to ensure a low noise figure, and the chip of the mixer circuit module is a low variable loss chip.
4. The ultra-wideband radio frequency receiver with multiple bandwidth selections as claimed in claim 1, wherein the bandwidth selection switching module employs a high rectangular coefficient filter, and achieves multiple bandwidth combination selection and high gating performance through cascading two stages of switch filter banks.
5. The ultra-wideband radio frequency receiver with multiple bandwidth selections as claimed in claim 1, wherein the frequency source module employs a small-volume high-power-output frequency source chip.
6. The multiple bandwidth selective ultra-wideband radio frequency receiver of claim 1, wherein the coupled power division detection module employs a large dynamic range detection chip.
7. The ultra-wideband radio frequency receiver with multiple bandwidth selections as claimed in claim 1, wherein the communication control and power control protection module adopts a flat microstrip structure, and the power supply adopts two power supply modes, namely a rectangular connector power supply or a VPX connector power supply.
8. The multiple bandwidth selective uwb rf receiver of claim 1 wherein the housing and modules are shielding boxes made of red copper with gold plating on the inner surface.
9. The ultra-wideband radio frequency receiver with multiple bandwidth selections as claimed in claim 1, wherein the microwave radio frequency RF signal input terminal, the microwave 100MHz signal output terminal, the microwave 10MHz signal output terminal, the microwave 2.4GHz signal output terminal, the microwave intermediate frequency IF signal coupling output terminal and the communication and power control connector all adopt SMA connectors.
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| CN202020759977.2U CN211981858U (en) | 2020-05-09 | 2020-05-09 | Multi-bandwidth-selection ultra-wideband radio frequency receiver |
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| CN202020759977.2U CN211981858U (en) | 2020-05-09 | 2020-05-09 | Multi-bandwidth-selection ultra-wideband radio frequency receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142806A1 (en) * | 2020-12-31 | 2022-07-07 | 展讯通信（上海）有限公司 | Multiple-input-multiple-output receiver for wifi, and electronic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142806A1 (en) * | 2020-12-31 | 2022-07-07 | 展讯通信（上海）有限公司 | Multiple-input-multiple-output receiver for wifi, and electronic device |
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