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Micro-strip resonator with comb-shaped structure and filter thereof

A comb-like structure, microstrip resonance technology, applied in resonators, waveguide devices, electrical components, etc., can solve problems such as quality factor reduction, achieve simple circuit design and adjustment, good stop-band suppression characteristics, and weaken parasitic coupling. Effect

Inactive Publication Date: 2010-06-09
海泰超导通讯科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The resonator directions of this filter structure are all in the same direction. In order to shorten the entire resonator length, the capacitance part of the resonator can be increased, and the inductance part can be reduced, but its quality factor (Q value) will increase with the Such an adjustment reduces the

Method used

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  • Micro-strip resonator with comb-shaped structure and filter thereof
  • Micro-strip resonator with comb-shaped structure and filter thereof
  • Micro-strip resonator with comb-shaped structure and filter thereof

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Embodiment 1

[0027] Embodiment 1: A comb-shaped microstrip resonator 40 proposed by the present invention is composed of a folded microstrip line, and is characterized in that the microstrip line is folded and arranged into an overall comb-shaped structure.

[0028] The middle of the microstrip line of the above-mentioned comb-shaped microstrip resonator 40 forms a comb body 41 with a comb-shaped structure, and the two ports are folded and arranged to form comb teeth 42 .

[0029] The two ports 43a and 43b of the microstrip line of the above-mentioned comb-shaped microstrip resonator 40 are located in the middle of the comb-shaped structure.

[0030] The two ports 43a and 43b of the microstrip line of the above-mentioned comb-shaped microstrip resonator 40 have the same direction.

[0031] The number of teeth of the microstrip line comb teeth 42 of the above-mentioned comb structure microstrip resonator 40 is not less than two.

[0032] The present invention proposes a filter 60 based on ...

Embodiment 2

[0036] Embodiment 2: The input microstrip 71 and the output microstrip 72 of the above-mentioned filter 70 are respectively in a coupled excitation relationship with the nearest comb-shaped structure microstrip resonator 40 .

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Abstract

The invention provides a micro-strip resonator with a comb-shaped structure and a filter thereof. The invention is characterized in that the micro-strip resonator with the comb-shaped structure consists of a micro-strip line arrayed by folding, and the micro-strip line is folded and arrayed into an integral comb-shaped structural form; and the filter comprises an input micro-strip, an output micro strip and a plurality of micro-strip resonators with the comb-shaped structure. The invention has the advantages that the comb-shaped structure can reduce the size of the resonator, thus the structure is more compact; intercoupling between nonadjacent resonators is weakened so as to ensure that the design and the adjustment of circuits are simpler; and meanwhile, the formed filter has good frequency selectivity and stop band suppression characteristics. The micro-strip resonator not only can be used for manufacturing high-performance high temperature superconductivity filters, but also is suitable for manufacturing traditional plane type metal micro-strip filters.

Description

(1) Technical field: [0001] The invention relates to a microstrip resonator suitable for microwave communication and a filter made of it, in particular to a microstrip resonator with a comb structure and a filter thereof. The resonator and filter can use high temperature superconducting thin films made. (two) background technology: [0002] For a long time, the filter has played an extremely important role in the processing of electronic signals, and it has the function of filtering the used signal and suppressing the interference signal. The ideal filter frequency characteristic should be that the energy loss in the passband is as small as possible, while the energy attenuation in the stopband is as large as possible, and the transition band between the passband and the stopband should be as steep as possible. With the rapid development of microwave wireless communication, higher and higher requirements are placed on the frequency characteristics of filters. The high-temp...

Claims

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Application Information

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IPC IPC(8): H01P7/08H01P1/203H01P1/205
Inventor 孙钧王金明刘伟冯继东王朗李演奇许开维季来运
Owner 海泰超导通讯科技(天津)有限公司
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