CN206922743U - Integrated Ka wave band antennas front end - Google Patents
Integrated Ka wave band antennas front end Download PDFInfo
- Publication number
- CN206922743U CN206922743U CN201720658003.3U CN201720658003U CN206922743U CN 206922743 U CN206922743 U CN 206922743U CN 201720658003 U CN201720658003 U CN 201720658003U CN 206922743 U CN206922743 U CN 206922743U
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- CN
- China
- Prior art keywords
- input
- power amplifier
- directional coupler
- output end
- extension set
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Abstract
The utility model discloses integrated Ka wave band antennas front end, including transmitting extension set, receive extension set and directional coupler, transmitting extension set includes transmitting antenna, the first power amplifier, the second power amplifier and digital pad, the input termination frequency source of digital pad.The integrated Ka wave band antennas front end that the utility model is proposed, transmission signal is stable, reception signal is sensitive, improves the transmitting-receiving performance and image quality of radar, simple in construction, compact, and prepares simple, suitable popularization.
Description
Technical field
Electromagnetic transmission equipment is the utility model is related to, specifically integrated Ka wave band antennas front end.
Background technology
Ka waveband K a wave bands are a parts for the microwave band of electromagnetic spectrum, and the frequency range of Ka wave bands is 26.5-
40GHz.Ka represents K surface (K-above), and in other words, the wave band is directly higher than K-band.Ka wave bands are also referred to as
30/20 GHz wave bands, are generally used for satellite communication.
Antenna front ends are the critical components of radar seeker, it is desirable to which transmission signal is stable, reception signal is sensitive, miniaturization.
Utility model content
The purpose of this utility model is to provide integrated Ka wave band antennas front end, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical scheme：
Integrated Ka wave band antennas front end, including transmitting extension set, reception extension set and directional coupler, transmitting extension set include hair
Antenna, the first power amplifier, the second power amplifier and digital pad are penetrated, the input of digital pad terminates frequency source,
The input of output the first power amplifier of termination of digital pad, the output end of the first power amplifier pass through directional couple
Device is connected with the input of the second power amplifier, and the output end of the second power amplifier is connected with transmitting antenna；Receive
Extension set includes reception antenna, bandpass filter, low noise amplifier, frequency mixer, low pass filter and intermediate frequency amplifier, reception antenna
It is connected with the input of bandpass filter, the output end of bandpass filter is connected with the input of low noise amplifier, low noise
The output end of amplifier is connected by frequency mixer with low pass filter, the output end of low pass filter and intermediate frequency amplifier it is defeated
Enter end to be connected, the external IF process module of output end of intermediate frequency amplifier（Demodulation）；The input of directional coupler and first
The output end of power amplifier is connected, and the straight-through end of directional coupler is connected with the input of the second power amplifier, fixed
The input of coupled end and frequency mixer to coupler is connected.
The output signal of frequency source decays by digital pad after certain power, meets the defeated of the first power amplifier
Enter requirement, then signal is launched after a part of signal of directional coupler supplies the second power amplifier through transmitting antenna, separately
Local oscillation signal of a part of signal as frequency mixer；Signal from reception antenna entrance after through band-pass filter go noise wave removing it
It is amplified into the RF ends of frequency mixer through low noise amplifier again afterwards, coupled signal and the echo-signal received are mixed through frequency mixer
Turn into intermediate-freuqncy signal afterwards, detection processing is carried out after intermediate frequency amplification is then carried out after low pass filter filters.Pass through two-stage work(
The stability requirement of transmitting extension set transmission power is realized in rate amplification, and is to receive extension set local oscillation signal, upper change by directional coupler
Frequently, down coversion shares a frequency mixer, reduces volume.
The utility model further improves, and described directional coupler is that parallel microstrip coupled line directional coupler is parallel
Oriented coupler of coupler wire, sheet metal thickness 0.8mm, dielectric constant 3.5, electrical conductivity 5.88e7, metal layer thickness are
0.032mm, loss angle tangent 0.0001；To ensure that the degree of coupling is more than 16dB, insertion loss is less than 1dB, and isolation is more than
30dB, further improve the transmission signal quality of transmitting extension set and receive the received signal quality of extension set, suppression for clutter,
The interference signal inhibition level of radiating circuit leakage is high.
The integrated Ka wave band antennas front end that the utility model is proposed, transmission signal is stable, reception signal is sensitive, improves
The transmitting-receiving performance and image quality of radar, simple in construction, compact, and prepare it is simple, it is suitable to promote.
Brief description of the drawings
Fig. 1 be the utility model proposes integrated Ka wave band antennas front-end architecture schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Integrated Ka wave band antennas front end, including transmitting extension set, reception extension set and directional coupler 4, transmitting extension set include
Transmitting antenna 6, the first power amplifier 3, the second power amplifier 5 and digital pad 2, the input termination of digital pad 2
Frequency source 1, the input of output the first power amplifier 3 of termination of digital pad 2, the output end of the first power amplifier 3
It is connected by directional coupler 4 with the input of the second power amplifier 5, the output end of the second power amplifier 5 and transmitting
Antenna 6 is connected；Receiving extension set includes reception antenna 7, bandpass filter 8, low noise amplifier 9, frequency mixer 10, low pass filter
11 and intermediate frequency amplifier 12, reception antenna 7 be connected with the input of bandpass filter 8, the output end of bandpass filter 8 with it is low
The input of amplifier 9 of making an uproar is connected, and the output end of low noise amplifier 9 is connected by frequency mixer 10 with low pass filter 11,
The output end of low pass filter 11 is connected with the input of intermediate frequency amplifier 12, the external intermediate frequency of output end of intermediate frequency amplifier 12
Processing module（Demodulation）；The input of directional coupler 4 is connected with the output end of the first power amplifier 3, directional coupler 4
Straight-through end be connected with the input of the second power amplifier 5, the coupled end of directional coupler 4 and the input of frequency mixer 10
It is connected.
The output signal of frequency source 1 decays by digital pad 2 after certain power, meets the first power amplifier 3
Input requirements, then signal by 4 a part of signal of directional coupler supply the second power amplifier 5 after through transmitting antenna 6
Transmitting, local oscillation signal of another part signal as frequency mixer 10；Signal is filtered after the entrance of reception antenna 7 through bandpass filter 8
Ripple goes after noise wave removing to be amplified into the RF ends of frequency mixer 10, coupled signal and the echo received through low noise amplifier 9 again
Signal turns into intermediate-freuqncy signal after the mixing of frequency mixer 10, is carried out after then carrying out intermediate frequency amplification after the filtering of low pass filter 11
Detection is handled.Amplify the stability requirement for realizing transmitting extension set transmission power by two stage power, and be to connect by directional coupler 4
Contracture machine local oscillation signal, up-conversion, down coversion share a frequency mixer 10, reduce volume.
The utility model further improves, and described directional coupler 4 is that parallel microstrip coupled line directional coupler 4 is flat
Row oriented coupler of coupler wire 4, sheet metal thickness 0.8mm, dielectric constant 3.5, electrical conductivity 5.88e7, metal layer thickness are
0.032mm, loss angle tangent 0.0001；To ensure that the degree of coupling is more than 16dB, insertion loss is less than 1dB, and isolation is more than
30dB, further improve the transmission signal quality of transmitting extension set and receive the received signal quality of extension set, suppression for clutter,
The interference signal inhibition level of radiating circuit leakage is high.
The integrated Ka wave band antennas front end that the utility model is proposed, transmission signal is stable, reception signal is sensitive, improves
The transmitting-receiving performance and image quality of radar, simple in construction, compact, and prepare it is simple, it is suitable to promote.
Described above is only specific embodiment of the present utility model, is made skilled artisans appreciate that or realizing this
Utility model.A variety of modifications to these embodiments will be apparent to one skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.
Therefore, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and original disclosed herein
The reason most wide scope consistent with features of novelty.
Claims (2)
1. integrated Ka wave band antennas front end, including transmitting extension set, reception extension set and directional coupler, it is characterised in that：Transmitting
Extension set includes transmitting antenna, the first power amplifier, the second power amplifier and digital pad, the input of digital pad
Frequency source, the input of output the first power amplifier of termination of digital pad are connect, the output end of the first power amplifier is led to
The input that directional coupler is crossed with the second power amplifier is connected, output end and the transmitting antenna phase of the second power amplifier
Connection；Receiving extension set includes reception antenna, bandpass filter, low noise amplifier, frequency mixer, low pass filter and intermediate frequency amplification
Device, reception antenna are connected with the input of bandpass filter, the output end of bandpass filter and the input of low noise amplifier
It is connected, the output end of low noise amplifier is connected by frequency mixer with low pass filter, and the output end of low pass filter is with
The input of audio amplifier is connected, the external IF process module of output end of intermediate frequency amplifier；The input of directional coupler
It is connected with the output end of the first power amplifier, the straight-through end of directional coupler is connected with the input of the second power amplifier
Connect, the coupled end of directional coupler is connected with the input of frequency mixer.
2. integrated Ka wave band antennas front end according to claim 1, it is characterised in that：Described directional coupler is flat
The microstrip coupled line directional coupler of row is parallel coupled line directional coupler, sheet metal thickness 0.8mm, dielectric constant 3.5, conductance
Rate 5.88e7, metal layer thickness 0.032mm, loss angle tangent 0.0001.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720658003.3U CN206922743U (en) | 2017-06-07 | 2017-06-07 | Integrated Ka wave band antennas front end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720658003.3U CN206922743U (en) | 2017-06-07 | 2017-06-07 | Integrated Ka wave band antennas front end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206922743U true CN206922743U (en) | 2018-01-23 |
Family
ID=61313782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720658003.3U Expired - Fee Related CN206922743U (en) | 2017-06-07 | 2017-06-07 | Integrated Ka wave band antennas front end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206922743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231166A (en) * | 2017-06-07 | 2017-10-03 | 南京燃犀智能科技有限公司 | Integrated Ka wave band antennas front end and its manufacture method |
-
2017
- 2017-06-07 CN CN201720658003.3U patent/CN206922743U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231166A (en) * | 2017-06-07 | 2017-10-03 | 南京燃犀智能科技有限公司 | Integrated Ka wave band antennas front end and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20190607 |