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Microstrip ultra-wide-band band-pass filter based on novel multi-branch multi-mode resonator

A multi-mode resonance and resonator technology, applied to waveguide devices, electrical components, circuits, etc., to achieve small size, good frequency selection, and good out-of-band suppression

Inactive Publication Date: 2015-11-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, designing small, high-performance and low-cost filters remains a challenge

Method used

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  • Microstrip ultra-wide-band band-pass filter based on novel multi-branch multi-mode resonator
  • Microstrip ultra-wide-band band-pass filter based on novel multi-branch multi-mode resonator
  • Microstrip ultra-wide-band band-pass filter based on novel multi-branch multi-mode resonator

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto. The positive side of the example is as image 3 As shown, the metal upper cladding layer I of the microstrip includes the following patterns: input feeder 1, gradient impedance transmission line section 11, short-circuit transmission line section 12 (short circuit is realized through metallized via hole 13), open transmission line section 14, open transmission line Section 15, open transmission line section 16, open transmission line section 31, transmission line section 32, middle short transmission line section 33, metallized via hole 34, open transmission line section 35, open transmission line section 36, open transmission line section 37, open transmission line section 38, open Transmission line section 39 , open transmission line section 26 , open transmission line sectio...

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Abstract

The ultra-wide-band filter serves as a key unit in an ultra-wide-band communication system and determines the overall performance of the system. The invention relates a microstrip ultra-wide-band band-pass filter based on a novel multi-branch multi-mode resonator. The filter is characterized in that two ends of an intermediate short-circuit transmission line node 33 are connected with two ends of a transmission line node 32 to form a closed loop, wherein the short circuit of the intermediate short-circuit transmission line node 33 is realized by a metalized through hole 34. An open-circuit transmission line node 31, an open-circuit transmission line node 35, an open-circuit transmission line node 36, an open-circuit transmission line node 37, an open-circuit transmission line node 38, and an open-circuit transmission line node 39 are respectively connected to the transmission line node 32. In addition, the filter performances are improved by connecting matching branches including a short-circuit transmission line node 12 and an open-circuit transmission line node 14 at an input port and connecting matching branches containing a short-circuit transmission line node 22 and an open-circuit transmission line node 24 at an output port, wherein the short circuit of the short-circuit transmission line node 12 is realized by a metalized through hole 13 and the short circuit of the short-circuit transmission line node 22 is realized by a metalized through hole 23. Researches show that the provided microstrip ultra-wide-band band-pass filter has advantages of high performance and miniaturization and the like.

Description

technical field [0001] The invention belongs to the technical field of ultra-wideband communication, and in particular relates to a microstrip ultra-wideband band-pass filter based on a novel multi-node multi-mode resonator. Background technique [0002] In 2002, the Federal Communications Commission (FCC) of the United States opened the frequency band between 3.1 GHz and 10.6 GHz for applications in the communication field. Because of its advantages such as high transmission rate and low transmission loss, UWB communication has received extensive attention and developed rapidly. As a key device in an ultra-wideband communication system, the performance of the ultra-wideband bandpass filter determines the overall performance of the system. However, designing small, high-performance, and low-cost filters remains a major challenge. Contents of the invention [0003] The object of the present invention is to provide a microstrip ultra-wide band band-pass filter based on a n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203
Inventor 肖飞张亭李伟焦益明唐小宏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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