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Micro band filter with fork-shaped hair pin type structure for microwave communication

A microstrip filter, microwave communication technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve problems such as quality factor reduction, and achieve the effects of reduced sensitivity, good frequency selectivity, and good stopband suppression characteristics

Inactive Publication Date: 2005-04-20
海泰超导通讯科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 adjustments are reduced;

Method used

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  • Micro band filter with fork-shaped hair pin type structure for microwave communication
  • Micro band filter with fork-shaped hair pin type structure for microwave communication
  • Micro band filter with fork-shaped hair pin type structure for microwave communication

Examples

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Embodiment

[0020] Embodiment: a kind of microstrip filter with fork-like hairpin structure for microwave communication is characterized in that it is composed of an input microstrip 41, an output microstrip 42 and a resonator 30 of a plurality of fork-like hairpin structures composed of resonator arrays. The microstrip resonator 30 is a fork-like hairpin structure. In this structure, the distances between the microstrip lines 33a and 33b on both sides of the open end 31 and the turning end 32 of the resonator 30 are different, and the coupling effect is relatively strong. The distance d2 between the turning ends 32 is smaller than the distance d1 between the opening ends 31 with weaker coupling effect, forming two parts connected in a ladder shape, and the lengths L1 and L2 of the two parts can be the same or different.

[0021] The number of fork-like hairpin resonators 30 in the filter mentioned above can be determined according to actual needs, the direction of the resonators alternat...

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PUM

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Abstract

A forked hairpin structure micro band filter is composed of a resonator array containing an input micro-strip, an output micro-strip and multiple forked hairpin resonators which is a fork hairpin structure, distances between the open-ends are different from the distance between micro strip lines at both sides of the turning ends and the distance between the turning ends with strong coupled action are smaller than the distance between the open-ends to form two parts of a ladder which has the following advantage: said filter weakens the coupled action of the turning position so as to reduce the sensitivity of the filter frequency response property to the circuit structure of said zone.

Description

(1) Technical field: [0001] The present invention relates to a band-pass filter suitable for microwave communication, in particular to a microstrip filter with Forked-Hairpin structure suitable for microwave communication. made of conductive film. (two) background technology: [0002] For a long time, filters have played an extremely important role in the processing of electronic signals. It has the function of filtering signals of used frequencies and suppressing interference signals. With the rapid development of microwave wireless communication, higher and higher requirements are placed on the electrical performance of filters. The high-temperature superconducting filter technology developed in recent years is well adapted to this demand. Since the high-temperature superconducting film has a high quality factor (Q value), the microstrip filter made of the high-temperature superconducting film has The extremely low insertion loss and excellent frequency selection charact...

Claims

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Application Information

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IPC IPC(8): H01P1/205
Inventor 季来运陈勤文
Owner 海泰超导通讯科技(天津)有限公司
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