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Trapped wave frequency band ultra wide band-pass filter based on terminal short circuit cross resonator

A band-pass filter and terminal short-circuit technology, applied in resonators, waveguide devices, circuits, etc., can solve problems such as ultra-wideband band-pass filters in notch frequency bands that have not been found, and achieve light weight, simple and mature technology, and easy Processing effect

Inactive Publication Date: 2015-05-27
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No related research and reports have been found on the notch band ultra-wideband bandpass filter based on the terminal short-circuit cross resonator

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  • Trapped wave frequency band ultra wide band-pass filter based on terminal short circuit cross resonator
  • Trapped wave frequency band ultra wide band-pass filter based on terminal short circuit cross resonator
  • Trapped wave frequency band ultra wide band-pass filter based on terminal short circuit cross resonator

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Embodiment Construction

[0013] The invention discloses a notch frequency band ultra-wideband bandpass filter based on a terminal short-circuit cross-shaped resonator, which includes a cross-shaped resonator, and four microstrip lines of the cross-shaped resonator are respectively the first microstrip along the clockwise direction. Line 1, second microstrip line 2, third microstrip line 3, fourth microstrip line 4, the first microstrip line 1 is located at the top, where the second microstrip line 2 and the fourth microstrip line 4 are about y Axisymmetric, the end of the first microstrip line 1 is provided with a first metallized through hole V 1 , the end of the second microstrip line 2 is provided with a second metallized via V 2 , the end of the fourth microstrip line 4 is provided with a third metallized via V 3 , the sixth microstrip line 6 and the seventh microstrip line 7 are coupled with the third microstrip line 3 at the same time, one end of the sixth microstrip line 6 is connected with on...

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Abstract

The invention discloses a trapped wave frequency band ultra wide band-pass filter based on a terminal short circuit cross resonator. The trapped wave frequency band ultra wide band-pass filter comprises a cross resonator, three metallization through holes in tail ends of three stub lines of the cross resonator, and parallel coupling feeding line structures. Micro band line design with distribution parameters is adopted. The trapped wave frequency band ultra wide band-pass filter has the advantages of light weight, high reliability, excellent property, good temperature stability, large-scale production, low cost, and the like, and is particularly applicable to communication of corresponding microwave frequency bands, digital radar, military and civil multimode and multi-channel communication system terminals, wireless communication handheld terminals, and corresponding systems with harsh requirements on weight, property and reliability.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave technology, in particular to an ultra-wideband band-pass filter in a notch frequency band based on a terminal short-circuit cross resonator. Background technique [0002] In 2002, the U.S. Federal Communications Commission (FCC) allowed the 3.1GHz to 10.6GHz frequency band to be used by civilians, which brought a ray of hope to the development of the communication field, and then academia and industry carried out research on UWB devices in UWB devices. technical research. Ultra-wideband technology is widely used in military and civilian wireless communications. The rapid development of wireless communication systems puts forward more difficult requirements for existing systems, especially for wireless transmission and reception systems, and the compatibility between ultra-wideband systems and existing communication systems. Gaining importance. The filter is an essential and important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203H01P7/08
Inventor 康炜王辉沈义进吴文
Owner NANJING UNIV OF SCI & TECH