Microstrip ultra-wideband bandpass filter with good stopband characteristics

An ultra-wideband filter and microstrip technology, applied in waveguide-type devices, electrical components, circuits, etc., to achieve low return loss, good out-of-band suppression, and good frequency selection.

Inactive Publication Date: 2017-08-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microstrip ultra-wideband bandpass filter with good stopband characteristics
  • Microstrip ultra-wideband bandpass filter with good stopband characteristics
  • Microstrip ultra-wideband bandpass filter with good stopband characteristics

Examples

Experimental program
Comparison scheme
Effect test

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 front side of the embodiment is shown in Figure 3 (a), and includes the following patterns in the metal upper cladding layer (I) of the microstrip: input feeder (1), the first gradual impedance transmission line section (11), the fifth open circuit transmission line section (12), the sixth open-circuit transmission line section (13), the first short-circuit transmission line section (14), the ninth open-circuit transmission line section (16), the parallel coupling line section ( 30), the first open transmission line section (31), the second open transmission line section (32), the third open transmission line section (33), the fourth open transmission line section (34), the output feeder (2), the second gradual impedance transmission line Section (21), the seventh open-circ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to a microstrip ultra-wideband bandpass filter based on a microstrip resonator (connected to a parallel coupling line section (30) by a first open transmission line section (31) and a second open transmission line section (32) One end of the parallel coupled line section (30) is connected to the third open transmission line section (33) and the fourth open transmission line section (34)). In addition, by inserting matching stubs at the input port (the first short-circuited transmission line section (14) and the ninth open-circuit transmission line section (16) that are short-circuited by the first metallized through hole (15)) and the output port, the matching The stubs (the second short-circuited transmission line section (24) and the tenth open-circuited transmission line section (26) short-circuited by the second metallized through hole (25)) further improve the performance of the ultra-wideband bandpass filter. Research shows that the ultra-wideband bandpass filter of the present invention has the advantages of compact size and excellent performance.

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. 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 overcome the shortcomings of the existing ultra-wi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/203
Inventor 肖飞张亭唐小宏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap