NDLI: Compact Filtering Rat-Race Hybrid With Wide Stopband

Content Provider	IEEE Xplore Digital Library
Author	Kai-Xu Wang Xiu Yin Zhang Shao Yong Zheng Quan Xue
Copyright Year	1963
Abstract	This paper presents a novel method to design filtering rat-race hybrids with wide-stopband bandpass responses. Four ± K-inverters with bandpass functions are utilized to replace the one or three quarter-wavelength transmission lines in the conventional rat-race hybrid. The ± K-inverters consist of transmission lines and capacitors, which can reduce the area occupied and suppress the high-order harmonics. Furthermore, the isolation performance is enhanced by embedding the ± K-inverters. Theoretical analysis is carried out and design equations are derived. For demonstration, a filtering rat-race hybrid with bandpass responses is implemented. The center frequency is located at 470 MHz with the insertion loss of 1.2 dB. Good in-phase and out-of-phase characteristics are observed. Comparisons between the measured and simulated results are also presented to verify the theoretical analysis. The overall size is only 4.6% of the conventional hybrid and stopband is extended to 5f₀.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	2550
Ending Page	2560
Page Count	11
File Size	2414451
File Format	PDF
ISSN	00189480
Volume Number	63
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ports (Computers) Power transmission lines Capacitors Harmonic analysis Power harmonic filters Couplers Transmission line matrix methods wide stopband Bandpass response dual function rat-race hybrid size reduction
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Harmonic suppression and size reduction of planar rat- race hybrid couplers

A miniaturized filtering power divider with wide stopband

A miniaturized rat-race coupler with arbitrary power division using dual transmission lines

Filtering rat-race coupler with transmission zeros using compact miniaturized hairpin resonators

Miniaturized rat-race coupler with bandpass response and good stopband rejection

Miniaturised and harmonic-suppressed rat-race couplers based on slow-wave transmission lines

Compact hairpin resonator bandpass filters with dual-band response and wide upper stopband

Compact bandpass filter with improved stopband characteristics using S-L coupling

Design of Wide Passband/Stopband Microstrip Bandpass Filters With the Stepped Coupled Line

Compact Filtering Rat-Race Hybrid With Wide Stopband

Similar Documents

Harmonic suppression and size reduction of planar rat- race hybrid couplers

A miniaturized filtering power divider with wide stopband

A miniaturized rat-race coupler with arbitrary power division using dual transmission lines

Filtering rat-race coupler with transmission zeros using compact miniaturized hairpin resonators

Miniaturized rat-race coupler with bandpass response and good stopband rejection

Miniaturised and harmonic-suppressed rat-race couplers based on slow-wave transmission lines

Compact hairpin resonator bandpass filters with dual-band response and wide upper stopband

Compact bandpass filter with improved stopband characteristics using S-L coupling

Design of Wide Passband/Stopband Microstrip Bandpass Filters With the Stepped Coupled Line

Compact Filtering Rat-Race Hybrid With Wide Stopband