CN207765596U - A kind of compact type large power low-pass filter - Google Patents
A kind of compact type large power low-pass filter Download PDFInfo
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- CN207765596U CN207765596U CN201820259598.XU CN201820259598U CN207765596U CN 207765596 U CN207765596 U CN 207765596U CN 201820259598 U CN201820259598 U CN 201820259598U CN 207765596 U CN207765596 U CN 207765596U
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Abstract
The utility model discloses a kind of compact type large power low-pass filters,Including input waveguide interface,Output waveguide interface,Input matched transform device,Export matched transform device,Multiple unilateral groove waveguides and waveguide iris,Input waveguide interface and output waveguide interface are arranged in the left and right ends of filter,Input matched transform device and output matched transform device are made of at least one section step waveguide,To match groove waveguide filter and external waveguide,It is provided with multiple unilateral groove waveguides between input matched transform device and output matched transform device,It inputs matched transform device and output matched transform device height is higher than unilateral groove waveguide,It is both provided with waveguide iris in each waveguide,The basic conception of LC filters is utilized in the utility model well,Screw-filter small size is inherited again,The characteristics of high q-factor,Realize high inhibition,Filter with low insertion loss,It can be widely applied to military communication,Mobile communication,The fields such as television broadcasting.
Description
Technical field
The utility model is related to fields of communication technology, more particularly to a kind of compact type large power low-pass filter.
Background technology
Waveguide lowpass is a kind of communication component that application is very wide, generally by ridge ripple waveguide lowpass and ripple wave
Forms such as waveguide lowpass and archipelago filter, but their disadvantages are the bulkies due to bringing, C-band sometimes
Reach half meter, in P, L, S-band with regard to longer.A kind of compact type large power low-pass filter of the utility model C-band length not
More than 200mm, reaches surprising in Ku wave bands and be less than 55mm.
The basic of LC filters is utilized in a kind of compact type large power low-pass filter of the utility model, concept well
Concept, and the characteristics of inherit screw-filter small size, high q-factor, high inhibition is realized, filter with low insertion loss can be widely applied to military
The fields such as communication, mobile communication, television broadcasting.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of compact type large power low-pass filter.
A kind of compact type large power low-pass filter of the utility model, including input waveguide interface, output waveguide interface,
Input matched transform device, output matched transform device, multiple unilateral groove waveguides and waveguide iris, input waveguide interface and output wave
Waveguide interface is arranged in the left and right ends of filter, input matched transform device and output matched transform device by least one section staircase waveform
Composition is led, to match groove waveguide filter and external waveguide, inputs between matched transform device and output matched transform device and is arranged
There are multiple unilateral groove waveguides, input matched transform device and output matched transform device height are higher than unilateral groove waveguide, each
It is both provided with waveguide iris in a waveguide.
The depth calibration ordinary wave waveguide lowpass of groove waveguide is deep, reduce output and input matched transform device depth and
Length.
Multiple unilateral groove waveguides are symmetrical with filter construction center.
Filter joint number saves for 3-23.
The beneficial effects of the utility model are compared with prior art：
The basic conception of LC filters is utilized in the utility model well, and inherits screw-filter small size, high Q
The characteristics of value, high inhibition is realized, filter with low insertion loss can be widely applied to the fields such as military communication, mobile communication, television broadcasting.
Description of the drawings
Fig. 1 is the structure chart of the utility model.
Wherein, 1, input waveguide interface, 2, output waveguide interface, 3, input matched transform device, 4, output matched transform device,
5, multiple unilateral groove waveguides, 6, waveguide iris.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1, becoming including input waveguide interface 1, output waveguide interface 2, input matched transform device 3, output matching
Parallel operation 4, multiple unilateral groove waveguides 5 and waveguide iris 6, input waveguide interface 1 and output waveguide interface 2 are arranged in filter
Left and right ends, input matched transform device 3 and output matched transform device 4 are made of at least one section step waveguide, to match groove
Waveguide filter and external waveguide are provided with multiple unilateral groove waves between input matched transform device 3 and output matched transform device 4
5 are led, input matched transform device 3 and 4 height of output matched transform device are higher than unilateral groove waveguide 5, are all provided in each waveguide
It is equipped with waveguide iris 6.
The depth calibration ordinary wave waveguide lowpass of groove waveguide 5 is deep, reduces and outputs and inputs matched transform device depth
And length.
Multiple unilateral groove waveguides 5 are symmetrical with filter construction center.
Filter joint number saves for 3-23.
Filter joint number is generally 3-23, even higher；The ratio between its low-limit frequency and highest frequency can reach 3~5, very
To higher.It has small size, and wide waveband is high-power, the branch and combining function of arbitrary channel transmitting-receiving.Band internal loss is less than
0.2dB, band standing internal wave ratio are less than 1.2, and isolation is more than 80dB, and power capacity is more than 5000W.
Way of realization can be used for duplexer and its harmonics restraint, can be used for multiplexer and its harmonics restraint, Ke Yiyong
In antenna and the harmonics restraint of feed system.
The emulation of compact type large power low-pass filter is accurate, and time processing, without debugging, volume performance and cost performance reach
Most preferably, it is suitble to produce in enormous quantities, further reduces loss.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into modification.
Claims (4)
1. a kind of compact type large power low-pass filter, which is characterized in that including input waveguide interface (1), output waveguide interface
(2), input matched transform device (3), output matched transform device (4), multiple unilateral groove waveguides (5) and waveguide iris (6), input
Waveguide interface (1) and output waveguide interface (2) are arranged in the left and right ends of filter, input matched transform device (3) and output
It is made of at least one section step waveguide with converter (4), to match groove waveguide filter and external waveguide, input matching becomes
It is provided with multiple unilateral groove waveguides (5) between parallel operation (3) and output matched transform device (4), input matched transform device (3) and defeated
It is higher than unilateral groove waveguide (5) to go out matched transform device (4) height, waveguide iris (6) is both provided in each waveguide.
2. a kind of compact type large power low-pass filter as described in claim 1, which is characterized in that the groove waveguide
(5) depth calibration ordinary wave waveguide lowpass is deep, reduces and outputs and inputs matched transform device depth and length.
3. a kind of compact type large power low-pass filter as described in claim 1, which is characterized in that described is multiple unilateral recessed
Groove waveguides (5) are symmetrical with filter construction center.
4. a kind of compact type large power low-pass filter as described in claim 1, which is characterized in that the filter joint number
It is saved for 3-23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820259598.XU CN207765596U (en) | 2018-02-15 | 2018-02-15 | A kind of compact type large power low-pass filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820259598.XU CN207765596U (en) | 2018-02-15 | 2018-02-15 | A kind of compact type large power low-pass filter |
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| Publication Number | Publication Date |
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| CN207765596U true CN207765596U (en) | 2018-08-24 |
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| CN201820259598.XU Active CN207765596U (en) | 2018-02-15 | 2018-02-15 | A kind of compact type large power low-pass filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149026A (en) * | 2018-09-12 | 2019-01-04 | 上海航天测控通信研究所 | A kind of low pass band logical composite filter |
| CN110364795A (en) * | 2019-08-05 | 2019-10-22 | 中电科仪器仪表有限公司 | A kind of compact vertical coupling band logical waveguide filter |
| CN113611996A (en) * | 2021-07-30 | 2021-11-05 | 江苏贝孚德通讯科技股份有限公司 | Waveguide low-pass filter with zero point |
-
2018
- 2018-02-15 CN CN201820259598.XU patent/CN207765596U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149026A (en) * | 2018-09-12 | 2019-01-04 | 上海航天测控通信研究所 | A kind of low pass band logical composite filter |
| CN110364795A (en) * | 2019-08-05 | 2019-10-22 | 中电科仪器仪表有限公司 | A kind of compact vertical coupling band logical waveguide filter |
| CN110364795B (en) * | 2019-08-05 | 2021-04-30 | 中电科思仪科技股份有限公司 | Compact vertical coupling band-pass waveguide filter |
| CN113611996A (en) * | 2021-07-30 | 2021-11-05 | 江苏贝孚德通讯科技股份有限公司 | Waveguide low-pass filter with zero point |
| CN113611996B (en) * | 2021-07-30 | 2022-03-01 | 江苏贝孚德通讯科技股份有限公司 | Waveguide low-pass filter with zero point |
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