CN203056063U - X wave-band dual-mode waveguide filter - Google Patents
X wave-band dual-mode waveguide filter Download PDFInfo
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- CN203056063U CN203056063U CN 201220744756 CN201220744756U CN203056063U CN 203056063 U CN203056063 U CN 203056063U CN 201220744756 CN201220744756 CN 201220744756 CN 201220744756 U CN201220744756 U CN 201220744756U CN 203056063 U CN203056063 U CN 203056063U
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- waveguide
- sidewall
- mode waveguide
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Abstract
An X wave-band dual-mode waveguide filter comprises a shielding housing, two same resonant cavities are arranged in the housing; for any one resonant cavity, an input/output waveguide port is mounted on a sidewall of the resonant cavity, a coupling window is disposed on a sidewall opposite to the above sidewall and two resonant cavities are connected with each other by the coupling window. The two resonant cavities are a cube shape. The input/output waveguide port is flexibly connected with a tuning metal sheet. Compared with conventional waveguide filters, the filter only needs few resonant cavities and can generate very strong attenuation to signals which need to be inhibited on a filter pass-band near end, and insertion loss of a filter pass band is relatively small. A contradiction between in-band loss and out-band attenuation of conventional devices is solved. The waveguide filter can be applied to various microwave electronic devices and has wide market prospects.
Description
Technical field
The utility model belongs to microwave communication technology, Radar Technology field, and what be specifically related to is the X-band dual-mode waveguide filter.
Background technology
The development of microwave communication technology, Radar Technology, the role of filter is more and more important.Traditional filter designing technique can not meet the demands in novel equipment, and this just need have novel filter to replace, and the X-band dual-mode waveguide filter just arises at the historic moment under such requirement.The dual-mode waveguide filter cavity resonator structure is simple, and is easy to process, and it is lower to produce cost in batches, need not debug substantially etc.Solve the design difficulty of this series products at present.
Summary of the invention
The purpose of this utility model is the deficiency at existing product, provides a kind of technical indicator better X-band dual-mode waveguide filter, its compact conformation, and debugging can be satisfied the requirement of microwave communication technology effectively easily.Concrete technical scheme is as follows:
A kind of X-band dual-mode waveguide filter comprises shield shell, has two identical resonant cavitys in the housing; For arbitrary resonant cavity, have I/O waveguide mouth on the sidewall of resonant cavity, have coupling window on the relative sidewall with this sidewall; Logical this coupling window connects between two resonant cavitys.Described resonant cavity is the square bodily form.Be connected with the tuning sheet metal of using on the described I/O waveguide mouth.
The utility model principle is described as follows:
This X-band dual mode filter, mainly solve routine techniques and realized the more unmanageable technical barrier of signal that waveguide passband near-end need suppress, this filter comprises two input and output waveguide mouths, contain structures such as bimodulus resonant cavity, coupling window between the waveguide mouth, they form a dual-mode waveguide filter together.It is characterized in that described dual-mode waveguide filter cavity resonator structure is simple, easy to process, it is lower to produce cost in batches.
Compare with conventional waveguide filter, only need resonant cavity seldom just can produce very strong decay to the signal that the filter passband near-end need suppress, and the Insertion Loss of filter passband is also smaller, has solved the contradiction of existing device band internal loss and attenuation outside a channel.In various microwave electron equipment, use broad market prospect.
Main feature of the present utility model is that whole filter is relatively simple for structure, and technical indicator is good.Under the equal conditions, the cost performance height of dual-mode waveguide filter in use in market, this also is sharpest edges of the present utility model.
Description of drawings
Fig. 1 is component internal structure diagram of the present utility model among the embodiment;
Fig. 2 (a)～(c) is surface structure sketch of the present utility model among the embodiment;
Wherein, Fig. 2 (b) is front view, and Fig. 2 (a) and Fig. 2 (c) are respectively left view and the right view of Fig. 2 (b).
Embodiment
Below in conjunction with accompanying drawing and embodiment the technical program is described as follows:
A kind of X-band dual-mode waveguide filter comprises shield shell, has two identical resonant cavitys in the housing; For arbitrary resonant cavity, have I/O waveguide mouth on the sidewall of resonant cavity, have coupling window on the relative sidewall with this sidewall; Logical this coupling window connects between two resonant cavitys.Described resonant cavity is the square bodily form.Be connected with the tuning sheet metal of using on the described I/O waveguide mouth.
The X-band dual-mode waveguide filter, mainly solve routine techniques and realized the more unmanageable technical barrier of signal that waveguide passband near-end need suppress, this filter comprises two input and output waveguide mouths 1, contain structures such as bimodulus resonant cavity 2, coupling window 4 between the waveguide mouth, they form a dual-mode waveguide filter 3 together.It is characterized in that dual-mode waveguide filter resonant cavity 2 is simple in structure, easy to process, it is lower to produce cost in batches, need not debug substantially etc.Filter has adopted the bimodulus resonant cavity 2 of two-stage symmetry, and this cavity configuration is simple, and just the cavity of a rectangle is inner without any need for debugging facility, has just reached the high request of better suppressed sideband signal.Coupling window 4 between the bimodulus resonant cavity 2 is very simple, easy to process, just can satisfy the index request that filter will be realized without any need for adjustment screw.Added tuning measure in input and output waveguide notch portion, only needed processing biscuit metal sheet can reach the purpose of regulating coupling, and processing gets up more conveniently, do not increase any cost.This filter adopts the Waveguide interface of the X-band of standard, has guaranteed the versatility of device from this respect, only needs to improve the filter that internal resonance chamber 2 and coupling window 4 just can become the other technologies index request.Filter has adopted the structure in two half chambeies, will just form a complete filter after the assembling of two halves chamber, is fit to produce in enormous quantities.Adopt new technology to overcome the weak point of conventional filter, solve the design difficulty of this series products at present.Be the X-band dual-mode waveguide filter technical indicator that is designed by demand below:
(1), working temperature :-40 ℃～+ 55 ℃
(2), storing temperature :-55 ℃～+ 70 ℃
(3), centre frequency: X-band
(4), bandwidth of operation: 100MHz
(5), insert loss :≤0.4dB
(6), port standing wave :≤1.2
(7), band is outer suppresses: 〉=60dB
(8), interface shape: BJ100 waveguide
(9), volume requirement: 100*55*42mm.
Claims (3)
1. an X-band dual-mode waveguide filter is characterized in that comprising shield shell, has two identical resonant cavitys in the housing;
For arbitrary resonant cavity, have I/O waveguide mouth on the sidewall of resonant cavity, have coupling window on the relative sidewall with this sidewall; Logical this coupling window connects between two resonant cavitys.
2. X-band dual-mode waveguide filter according to claim 1 is characterized in that described resonant cavity is the square bodily form.
3. X-band dual-mode waveguide filter according to claim 1 and 2 is characterized in that being connected with the tuning sheet metal of using on the described I/O waveguide mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744756 CN203056063U (en) | 2012-12-31 | 2012-12-31 | X wave-band dual-mode waveguide filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744756 CN203056063U (en) | 2012-12-31 | 2012-12-31 | X wave-band dual-mode waveguide filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203056063U true CN203056063U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744756 Expired - Lifetime CN203056063U (en) | 2012-12-31 | 2012-12-31 | X wave-band dual-mode waveguide filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203056063U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977586A (en) * | 2016-06-23 | 2016-09-28 | 江苏华灿电讯股份有限公司 | Low-frequency ultra-wideband filter |
| CN111180840A (en) * | 2020-01-15 | 2020-05-19 | 江苏德是和通信科技有限公司 | Dual-mode waveguide band-pass filter |
| CN114335968A (en) * | 2021-12-29 | 2022-04-12 | 南宁国人射频通信有限公司 | Dual-mode dielectric resonator and filter |
-
2012
- 2012-12-31 CN CN 201220744756 patent/CN203056063U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977586A (en) * | 2016-06-23 | 2016-09-28 | 江苏华灿电讯股份有限公司 | Low-frequency ultra-wideband filter |
| CN111180840A (en) * | 2020-01-15 | 2020-05-19 | 江苏德是和通信科技有限公司 | Dual-mode waveguide band-pass filter |
| CN114335968A (en) * | 2021-12-29 | 2022-04-12 | 南宁国人射频通信有限公司 | Dual-mode dielectric resonator and filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |