Micro-strip ultra wide band band-pass filter based on novel multimode resonator which is shaped like a Chinese character wang

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

Inactive Publication Date: 2015-11-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • 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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  • Micro-strip ultra wide band band-pass filter based on novel multimode resonator which is shaped like a Chinese character wang
  • Micro-strip ultra wide band band-pass filter based on novel multimode resonator which is shaped like a Chinese character wang
  • Micro-strip ultra wide band band-pass filter based on novel multimode resonator which is shaped like a Chinese character wang

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Embodiment Construction

[0019] 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, parallel coupling line section 32, open transmission line section 33, parallel coupling line section 34, parallel coupling line section 35, open transmission line section 36, open transmission line section 26, open transmission line section 25 , open circuit transmission line section 24 , short circuit transmission line section 22 (shor...

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Abstract

An ultra wide band band-pass filter is a key device in an ultra wide band communication system, whose performance plays a key role in the whole performance of the system. The invention relates to an ultra wide band band-pass filter based on a novel multimode resonator which is shaped like a Chinese character wang. In the resonator, an open-circuit transmission line knot 31 and an open-circuit transmission line knot 36 are connected to parallel coupling line knots 32. One end of each of theparallel coupling line knots 32 is connected to an open-circuit transmission line knot 33. The other end of each of the parallel coupling line knots 32 is connected to a parallel coupling line knot 34 and a parallel coupling line 35. In addition, matching branches comprising a short-circuit transmission line knot 12 which is short circuited by a metal through hole 13, and an open-circuit transmission line knot 14, are accessed to an input port and matching branches comprising a short-circuit transmission line knot 22 which is short circuited by a metal through hole 23, and an open-circuit transmission line knot 24, are accessed to an output port, so performance of the ultra wide band band-pass filter is further improved. The study shows that the ultra wide band band-pass filter is characterized by high performance and small size.

Description

technical field [0001] The invention belongs to the technical field of ultra-wideband communication, and in particular relates to a microstrip ultra-wideband bandpass filter based on a novel king-shaped multimode 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 in order to o...

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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