Wide-stopband waveguide band-pass filter with loading inductance diaphragms and capacitance diaphragms loaded in staggered mode

A technology of capacitive film and sensor film, applied in the microwave field, can solve the problems of inability to realize the wide stop-band characteristic of the filter, inability to realize the miniaturization of the filter, etc., and achieve excellent phase consistency, volume reduction, and excellent amplitude consistency. Effect

Inactive Publication Date: 2019-10-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

The above schemes have improved the wide stopband characteristics of the filter, but they cannot meet the requirements of miniaturization of the filter
[0004] On the other hand, traditional methods such as high-dielectric constant dielectric filling and capacitor columns are used to effectively reduce the...

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  • Wide-stopband waveguide band-pass filter with loading inductance diaphragms and capacitance diaphragms loaded in staggered mode
  • Wide-stopband waveguide band-pass filter with loading inductance diaphragms and capacitance diaphragms loaded in staggered mode
  • Wide-stopband waveguide band-pass filter with loading inductance diaphragms and capacitance diaphragms loaded in staggered mode

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Embodiment Construction

[0023] In order to better illustrate the purpose, advantages and technical ideas of the present invention, the present invention will be further elaborated below in conjunction with specific embodiments. It should be noted that the specific examples given below are only for the purpose of explaining the present invention in detail, and do not limit the present invention.

[0024] Such as image 3 As shown, the wide stopband miniaturized inductance diaphragm and the capacitive diaphragm interleaved waveguide bandpass filter of the embodiment of the present invention include a rectangular waveguide 1 (broadside length a=22.86mm, narrow Edge height b=10.16mm, TE10 mode cut-off frequency is 6.56GHz). The waveguide material is aluminum. There are 6 pairs of inductive diaphragms arranged in the axial direction in the rectangular waveguide. The material of the inductive diaphragms is metal aluminum with a thickness of 0.7mm. The distance between two adjacent pairs of inductive diap...

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Abstract

The invention discloses a wide-stopband waveguide band-pass filter with loading inductance diaphragms and capacitance diaphragms loaded in a staggered mode, and belongs to the technical field of microwaves. The waveguide band-pass filter comprises a rectangular waveguide, wherein N pairs of inductive diaphragms are arranged in the rectangular waveguide in the axial direction, and a pair of capacitive diaphragms is arranged between every two adjacent pairs of inductive diaphragms. Based on the design theory of the Chebyshev filter and the capacitance loading shortening theory of the resonant cavity of the transmission line, the wide-stopband waveguide band-pass filter adopts the out-of-band transmission pole control technology of the staggering resonator to finally achieve the miniaturization and wide-stopband suppression waveguide band-pass filter.

Description

technical field [0001] The invention belongs to the field of microwave technology, and relates to a waveguide band-pass filter loaded with miniaturized inductance diaphragms and capacitive diaphragms interleavedly with a wide stop band. Background technique [0002] The waveguide bandpass filter has the advantages of large power capacity and low insertion loss, and is widely used in microwave relay communication, radar, communication and other systems. However, the volume of the bandpass filter cavity formed by the waveguide transmission line is relatively large, and the conventional bandpass structure design does not have wide stopband suppression characteristics, which is limited in wide stopband applications. In addition, spaceborne space microwave systems require waveguide filters while maintaining high power capacity. [0003] The traditional wide stopband technology approaches include: adding a suitable transmission zero point to the filter; adopting an evanescent mod...

Claims

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Application Information

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IPC IPC(8): H01P1/20H01P1/208
CPCH01P1/20H01P1/208
Inventor 汪海洋郭倩胡标周翼鸿李浩李天明
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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