CN201616503U - Ultra-wide band transmitting/receiving antenna used for life SAR detecting instrument - Google Patents
Ultra-wide band transmitting/receiving antenna used for life SAR detecting instrument Download PDFInfo
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- CN201616503U CN201616503U CN2010201526492U CN201020152649U CN201616503U CN 201616503 U CN201616503 U CN 201616503U CN 2010201526492 U CN2010201526492 U CN 2010201526492U CN 201020152649 U CN201020152649 U CN 201020152649U CN 201616503 U CN201616503 U CN 201616503U
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Abstract
The utility model discloses an ultra-wide band transmitting/receiving antenna used for a life SAR (search and rescue) detecting instrument. The ultra-wide band transmitting/receiving antenna comprises a transmitting antenna and a receiving antenna, which are arranged in pairs, wherein the transmitting antenna and the receiving antenna are both ultra-wide band antennae; each ultra-wide band antenna comprises a pair of radiation patches, a PCB base plate, a pair of feeding probes, a reflection cavity and a pulse circuit box; the radiation patches are attached to the front surface of the PCB base plate; the reflection cavity is formed at the back of the PCB base plate and filled with a wave-absorbing material; and the pulse circuit box is connected with the feeding probes. The ultra-wide band transmitting/receiving antenna used for the life SAR detecting instrument has the advantages of simple and compact structure, low cost, good portability, ultra-wide band property, pulse radiating function, small tailing, and high fidelity in pulse waveform.
Description
Technical field
The utility model is mainly concerned with life and searches and rescues the detecting devices field, refers in particular to a kind of life based on the pulse system and searches and rescues survey meter.
Background technology
In scenes of the accident such as earthquake, fire, building ruins, life entity is surveyed quickly and accurately, located, be to realize, the effectively basic guarantee of relief timely to the existence personnel.Based on the life-detection instrument of pulse system require employed antenna hangover little, have an impulse waveform fidelity preferably, should have between the dual-mode antenna preferably and isolate, isolation greater than 15dB, also requires it to have portability in full frequency band simultaneously, promptly require antenna volume little, in light weight.
In the prior art, life-detection instrument based on the pulse system generally adopts traditional ultra broadband TEM horn antenna or traditional planographic type bow-tie antenna, though wherein traditional ultra broadband TEM horn antenna has the ultra broadband characteristic, and good waveform fidelity is arranged, it is also smaller to trail, but volume is bigger, and is relatively heavier, is not suitable for portable requirement.Though and traditional planographic type bow-tie antenna is in light weight, pulse stretching is big, also is not suitable for being applied to life-detection instrument.
The utility model content
The technical problems to be solved in the utility model just is: at the technical problem that prior art exists, the utility model provides a kind of simple and compact for structure, with low cost, good portability, has the ultra broadband characteristic, can the pulses of radiation and the ultra broadband dual-mode antenna that life is searched and rescued survey meter that is used for little, that have higher impulse waveform fidelity that trails.
For solving the problems of the technologies described above, the utility model by the following technical solutions.
A kind of ultra broadband dual-mode antenna that is used for life search and rescue survey meter, the transmitting antenna and the reception antenna that comprise paired setting, it is characterized in that: described transmitting antenna and reception antenna are ultra-wideband antenna, described ultra-wideband antenna comprises a pair of radiation patch, PCB substrate, a pair of feed probes, reflection cavity and impulse circuit box, described radiation patch is attached at the front of PCB substrate, described reflection cavity is arranged at the back side of PCB substrate, described reflection cavity is filled with absorbing material, and described impulse circuit box links to each other with feed probes.
As further improvement of the utility model:
Be provided with metal partion (metp) between described transmitting antenna and the reception antenna.
Described a pair of radiation patch is bow-tie shape and arranges.
Described a pair of feed probes is parallel shape and arranges each feed probes and a corresponding layout of radiation patch.
Compared with prior art, advantage of the present utility model just is:
The utility model is used for the ultra broadband dual-mode antenna that life is searched and rescued survey meter, and simple and compact for structure, with low cost, good portability are filled with the reflection cavity of absorbing material by setting, have reduced the radiation hangover greatly, have higher impulse waveform fidelity; By between transmitting antenna and reception antenna, metal partion (metp) being set, reduce the coupling between transmitting antenna and the reception antenna greatly, finally improved the detection accuracy and the reliability of life search and rescue survey meters.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the utility model ultra broadband dual-mode antenna;
Fig. 2 is the sectional structure schematic diagram at A-A place among Fig. 1;
Fig. 3 is the main TV structure schematic diagram of ultra-wideband antenna in the utility model;
Fig. 4 is the sectional structure schematic diagram at B-B place among Fig. 3;
Fig. 5 is an emulation standing wave schematic diagram of the present utility model;
Fig. 6 is the S21 schematic diagram that the utility model emulation obtains;
Fig. 7 is that the utility model emulation feed is to the waveform schematic diagram of transmitting antenna and the waveform schematic diagram that is coupled to reception antenna;
Fig. 8 is the radiation waveform schematic diagram of the utility model emulation transmitting antenna.
Marginal data
1, radiation patch; 2, PCB substrate; 3, feed probes; 4, absorbing material; 5, reflection cavity; 6, impulse circuit box; 7, transmitting antenna; 8, reception antenna; 9, metal partion (metp).
Embodiment
Below with reference to specific embodiment and Figure of description the utility model is described in further details.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model is used for the ultra broadband dual-mode antenna that life is searched and rescued survey meter, the transmitting antenna 7 and the reception antenna 8 that comprise paired setting, transmitting antenna 7 and reception antenna 8 are ultra-wideband antenna, ultra-wideband antenna comprises a pair of radiation patch 1, PCB substrate 2, a pair of feed probes 3, reflection cavity 5 and impulse circuit box 6, radiation patch 1 is attached at the front of PCB substrate 2, reflection cavity 5 is arranged at the back side of PCB substrate 2, reflection cavity 5 is filled with absorbing material 4, and impulse circuit box 6 links to each other with feed probes 3.Be to be etched into two arms of antenna and to be pasted with radiation patch 1 on the thick single face PCB substrate 2 of 1.5mm in the present embodiment, the relative dielectric constant of PCB substrate 2 is 2.5 or 3.5.Reflection cavity 5 is used for producing one-way radiation, and the size of cavity can be 420mm * 160mm * 120mm.Absorbing material 4 is meagre absorbing material, be used for reducing the radiation hangover, absorbing material 4 can be selected multi-layered foamed waveform flat-plate broadband absorbing material, can be by reflection cavity 5 bottoms to forming the multilayer design the PCB substrate 2, near more from antenna, the operating frequency of absorbing material 4 is high more, slightly reducing under the situation of antenna radiation efficiency like this, broad frequency range in wave-absorbing effect is preferably all arranged.
In the present embodiment, a pair of radiation patch 1 is bow-tie shape arranges, a pair of feed probes 3 is parallel shape and arranges, be the parallel wire feed, the two-wire characteristic impedance is 200 Ω, and antenna feed impedance is designed to 200 Ω, each feed probes 3 and a radiation patch 1 corresponding layout.Be provided with metal partion (metp) 9 between transmitting antenna 7 and the reception antenna 8, metal partion (metp) 9 is used for reducing the coupling between transmitting antenna 7 and the reception antenna 8.
Referring to Fig. 5, be the antenna standing wave that emulation obtains, as can be seen, between 0.6GHz-4GHz, standing wave of the present utility model is all less than 2, and antenna match is good, has the ultra broadband characteristic.Referring to Fig. 6, be the S21 parameter of emulation, in the 0.6GHz-4GHz frequency band, isolation between antennas illustrates that greater than 20dB metal partion (metp) 9 has played the effect that reduces coupling between transmitting antenna 7 and the reception antenna 8 as can be seen.Referring to Fig. 7, to transmitting antenna 7 feed-in differential Gaussian pulse waveforms, amplitude is a unit 1, obtains the time domain waveform of reception antenna 8 during for emulation, and as can be seen, peak value of pulse has only 0.02, and the energy that as seen is coupled to receiving terminal is very little.Referring to Fig. 8, be the far field impulse waveform of radiation, it is less to trail, and is suitable for radar life-detection instrument.
The above only is a preferred implementation of the present utility model, and protection range of the present utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to protection range of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (4)
1. one kind is used for the ultra broadband dual-mode antenna that life is searched and rescued survey meter, the transmitting antenna (7) and the reception antenna (8) that comprise paired setting, it is characterized in that: described transmitting antenna (7) and reception antenna (8) are ultra-wideband antenna, described ultra-wideband antenna comprises a pair of radiation patch (1), PCB substrate (2), a pair of feed probes (3), reflection cavity (5) and impulse circuit box (6), described radiation patch (1) is attached at the front of PCB substrate (2), described reflection cavity (5) is arranged at the back side of PCB substrate (2), described reflection cavity (5) is filled with absorbing material (4), and described impulse circuit box (6) links to each other with feed probes (3).
2. the ultra broadband dual-mode antenna that is used for life search and rescue survey meter according to claim 1 is characterized in that: be provided with metal partion (metp) (9) between described transmitting antenna (7) and the reception antenna (8).
3. the ultra broadband dual-mode antenna that is used for life search and rescue survey meter according to claim 1 and 2 is characterized in that: described a pair of radiation patch (1) is bow-tie shape and arranges.
4. the ultra broadband dual-mode antenna that is used for life search and rescue survey meter according to claim 3 is characterized in that: described a pair of feed probes (3) is parallel shape and arranges each feed probes (3) and the corresponding layout of a radiation patch (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201526492U CN201616503U (en) | 2010-04-08 | 2010-04-08 | Ultra-wide band transmitting/receiving antenna used for life SAR detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201526492U CN201616503U (en) | 2010-04-08 | 2010-04-08 | Ultra-wide band transmitting/receiving antenna used for life SAR detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616503U true CN201616503U (en) | 2010-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201526492U Expired - Lifetime CN201616503U (en) | 2010-04-08 | 2010-04-08 | Ultra-wide band transmitting/receiving antenna used for life SAR detecting instrument |
Country Status (1)
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| CN (1) | CN201616503U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157777A (en) * | 2011-01-24 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for realizing SAR control |
| CN102270779A (en) * | 2011-07-27 | 2011-12-07 | 东南大学 | Sub-millimetre wave tie pulse loading antenna |
| CN108539405A (en) * | 2018-05-18 | 2018-09-14 | 北京声迅电子股份有限公司 | Butterfly microwave antenna, liquid safety check instrument |
| CN111541000A (en) * | 2020-06-16 | 2020-08-14 | 湖南华诺星空电子技术有限公司 | Ultra-wideband radar antenna |
-
2010
- 2010-04-08 CN CN2010201526492U patent/CN201616503U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157777A (en) * | 2011-01-24 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for realizing SAR control |
| CN102270779A (en) * | 2011-07-27 | 2011-12-07 | 东南大学 | Sub-millimetre wave tie pulse loading antenna |
| CN102270779B (en) * | 2011-07-27 | 2013-07-10 | 东南大学 | Sub-millimetre wave tie pulse loading antenna |
| CN108539405A (en) * | 2018-05-18 | 2018-09-14 | 北京声迅电子股份有限公司 | Butterfly microwave antenna, liquid safety check instrument |
| CN108539405B (en) * | 2018-05-18 | 2022-10-14 | 北京声迅电子股份有限公司 | Butterfly microwave antenna and liquid security check instrument |
| CN111541000A (en) * | 2020-06-16 | 2020-08-14 | 湖南华诺星空电子技术有限公司 | Ultra-wideband radar antenna |
| CN111541000B (en) * | 2020-06-16 | 2021-02-05 | 湖南华诺星空电子技术有限公司 | Ultra-wideband radar antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ultra-wide band transmitting/receiving antenna used for life SAR detecting instrument Effective date of registration: 20150417 Granted publication date: 20101027 Pledgee: Bank of Beijing Limited by Share Ltd Changsha branch Pledgor: Hunan NovaSky Electronic Technology Co., Ltd. Registration number: 2015430000008 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161201 Granted publication date: 20101027 Pledgee: Bank of Beijing Limited by Share Ltd Changsha branch Pledgor: Hunan NovaSky Electronic Technology Co., Ltd. Registration number: 2015430000008 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101027 |