CN203056062U - Interdigital filter used for C-waveband electronic countermeasure system - Google Patents
Interdigital filter used for C-waveband electronic countermeasure system Download PDFInfo
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- CN203056062U CN203056062U CN 201320028713 CN201320028713U CN203056062U CN 203056062 U CN203056062 U CN 203056062U CN 201320028713 CN201320028713 CN 201320028713 CN 201320028713 U CN201320028713 U CN 201320028713U CN 203056062 U CN203056062 U CN 203056062U
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- rod
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Abstract
The utility model discloses an interdigital filter used for a C-waveband electronic countermeasure system. The filter comprises a cover plate, a cavity, a glass insulator, tuning screws, nuts, fastening bolts, resonance rods and soldering tin. The cover plate is provided with the several fastening bolts and is fixed on the cavity through the fastening bolts. The several resonance rods are arranged in the cavity. One end of the each resonance rod is provided with the tuning screw. The tuning screw is screwed in the cavity and the nut is screwed in the tuning screw. The each resonance rod is riveted in the cavity through interference fit. The glass insulator is deeply inserted into the cavity, and an outer surface and the cavity are in a same plane. A joint of the glass insulator and an inner portion of the cavity are welded though using the soldering tin. An internal conductor of the glass insulator is welded on the each resonance rod. The filter of the utility model possesses the advantages that an index is high; the size is small; weight is light and connection is convenient.
Description
Technical field
The utility model relates to and a kind of signal is carried out the microwave device of isolated by filtration, relates in particular to a kind of C-band electronic warfare system interdigital filter.
Background technology
Interdigital filter is a kind of for the microwave device that signal is carried out isolated by filtration, be usually used in all kinds of electronic warfare systems, be used for realizing that the filter relative bandwidth surpasses 50% specification requirement, and conventional filter or dressing can't be satisfied relative bandwidth and surpass 50% specification requirement.In the electronic warfare system filtering unit, the main effect of interdigital filter (abbreviation filter) is that the electronic equipment that utilizes spread spectrum to oneself in the electronic warfare system is carried out Waveform Design, the pseudo noise transmitted waveform that the result of modulation produces wideband low power density, it is difficult for being identified by enemy's countermeasure reconnaissance system, have only the reproducing signals by this machine is produced to carry out relevant treatment, the signal of ability demodulation output carries out filtering to be handled, the signal that allows system need passes through system, and the signal of other frequencies or frequency range is decayed, make it to decay to the level that does not influence system's operate as normal.
Main technical requirements and the characteristics of this type of conventional filtering device are: 1, can't satisfy the requirement of 50% relative bandwidth: because structure is fixed, two resonant cavitys are on fixing spacing, even the coupling window standard-sized sheet also can't satisfy the coupling value under 50% the relative bandwidth; 2, volume is big, and quality is big, and comparatively heavy: its drawback is that production cost is higher, is unfavorable for assembling, and system component is heavier; 3, adopt sub-miniature A connector: its drawback is that system need connect the SMA cable more, and the cost height connects inconvenient.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, provide a kind of for by improving the global index that Filter Design improves whole system, and the weight of reduction system component, make product possess that index is higher, volume is littler, weight is lighter, connect more convenient C-band electronic warfare system interdigital filter, eliminated the deficiencies in the prior art.
Above-mentioned purpose of the present utility model is realized by following technical scheme: a kind of C-band electronic warfare system interdigital filter, comprise cover plate, cavity, glass insulator, tuning screw rod, nut, trip bolt, resonant rod and scolding tin, described cover plate is provided with several trip bolts, and by trip bolt cover plate is fixed on the cavity, be provided with some resonant rods in the described cavity, one of described resonant rod is provided with tuning screw rod, described tuning screw rod is screwed on the cavity, and screw in nut on the tuning screw rod, described resonant rod is gone in the cavity by the interference fit riveting, described glass insulator gos deep into cavity, outside and cavity one are flat, and weld with scolding tin in inside cavity and glass insulator junction, the inner wire of described glass insulator is welded on the resonant rod.
The beneficial effects of the utility model are: index is higher, volume is littler, weight is lighter, connect more convenient, resonant rod and cavity in the described resonant cavity are an integral body, directly processed by the line cutting, reduce the installation number of spare parts of product, and owing to be integrated design, the stability of product is higher; Cavity adopts the joint style of glass insulator to connect, and can be welded direct on the pcb board in the assembly, reduces the sub-miniature A connector cost waste, and easy for installation.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1-cover plate, 2-cavity, 3-glass insulator, the tuning screw rod of 4-, 5-nut, 6-trip bolt, 7-resonant rod, 8-scolding tin.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
A kind of C-band electronic warfare system interdigital filter as depicted in figs. 1 and 2, comprise cover plate 1, cavity 2, glass insulator 3, tuning screw rod 4, nut 5, trip bolt 6, resonant rod 7 and scolding tin 8, described cover plate 1 is provided with several trip bolts 6, and by trip bolt 6 cover plate 1 is fixed on the cavity 2, be provided with some resonant rods 7 in the described cavity 2, one of described resonant rod 7 is provided with tuning screw rod 4, described tuning screw rod 4 is screwed on the cavity 2, and screw in nut 5 on the tuning screw rod 4, described resonant rod 7 is gone in the cavity 2 by the interference fit riveting, described glass insulator 3 gos deep into cavity 2, outside and cavity 2 one are flat, and weld with scolding tin 8 with glass insulator 3 junctions in cavity 2 inside, the inner wire of described glass insulator 3 is welded on the resonant rod 7.
It should be noted that at last: above embodiment is only in order to illustrate the utility model and the described technical scheme of unrestricted the utility model; Therefore, although the utility model book has been described in detail with reference to above-mentioned the utility model of each embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (1)
1. C-band electronic warfare system interdigital filter, comprise cover plate, cavity, glass insulator, tuning screw rod, nut, trip bolt, resonant rod and scolding tin, it is characterized in that being: described cover plate is provided with several trip bolts, and by trip bolt cover plate is fixed on the cavity, be provided with some resonant rods in the described cavity, one of described resonant rod is provided with tuning screw rod, described tuning screw rod is screwed on the cavity, and screw in nut on the tuning screw rod, described resonant rod is gone in the cavity by the interference fit riveting, described glass insulator gos deep into cavity, outside and cavity one are flat, and weld with scolding tin in inside cavity and glass insulator junction, the inner wire of described glass insulator is welded on the resonant rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028713 CN203056062U (en) | 2013-01-21 | 2013-01-21 | Interdigital filter used for C-waveband electronic countermeasure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028713 CN203056062U (en) | 2013-01-21 | 2013-01-21 | Interdigital filter used for C-waveband electronic countermeasure system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056062U true CN203056062U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028713 Expired - Fee Related CN203056062U (en) | 2013-01-21 | 2013-01-21 | Interdigital filter used for C-waveband electronic countermeasure system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203056062U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916888A (en) * | 2015-05-14 | 2015-09-16 | 中国电子科技集团公司第四十一研究所 | High-power filter |
| CN106329044A (en) * | 2016-08-24 | 2017-01-11 | 安徽华东光电技术研究所 | Ku-waveband small cavity filter |
| CN107134606A (en) * | 2017-06-29 | 2017-09-05 | 成都玖信科技有限公司 | The glass insulator level Hermetic Package structure and welding method of microwave device |
| CN109585990A (en) * | 2018-10-25 | 2019-04-05 | 安徽承鼎电子科技有限公司 | A kind of ultra wide band load microwave filter |
-
2013
- 2013-01-21 CN CN 201320028713 patent/CN203056062U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916888A (en) * | 2015-05-14 | 2015-09-16 | 中国电子科技集团公司第四十一研究所 | High-power filter |
| CN106329044A (en) * | 2016-08-24 | 2017-01-11 | 安徽华东光电技术研究所 | Ku-waveband small cavity filter |
| CN107134606A (en) * | 2017-06-29 | 2017-09-05 | 成都玖信科技有限公司 | The glass insulator level Hermetic Package structure and welding method of microwave device |
| CN107134606B (en) * | 2017-06-29 | 2022-07-08 | 成都玖信科技有限公司 | Glass insulator airtight packaging structure of microwave device and welding method |
| CN109585990A (en) * | 2018-10-25 | 2019-04-05 | 安徽承鼎电子科技有限公司 | A kind of ultra wide band load microwave filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20180121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |