NDLI: Nonreciprocal YIG filters

Content Provider	IEEE Xplore Digital Library
Author	Tokheim, R. Greene, C. Hoover, J. Peter, R.
Copyright Year	1965
Abstract	Several techniques for achieving nonreciprocity in YIG filters employing stripline or miniature coaxial line construction are presented. Nonreciprocal filters can be designed with either single-ended or double-ended nonreciprocity. In either case, the circuit element possesses isolator and circulator properties as well as that of a ferrimagnetic filter. Experimental results have indicated that nonreciprocity greater than 10 dB over octave bandwidths is possible with passband characteristics similar to those of conventional YIG filters. The insertion loss may be somewhat higher than the latter, depending on the technique of nonreciprocity utilized. Nonreciprocal YIG filters are useful with TWT microwave receiver systems as preselectors and post-selectors and obviate the need for isolators. These filters are also useful as tunable microwave circulators in conjunction with tunnel diode amplifiers and parametric amplifiers. An individual filter may be used as a diplexer, while several filters will provide multiplexer operation.
Sponsorship	IEEE Magnetics Society
Starting Page	383
Ending Page	392
Page Count	10
File Size	1394882
File Format	PDF
ISSN	00189464
Volume Number	3
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1967-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave filters Band pass filters Isolators Microwave amplifiers Stripline Coaxial components Circuits Ferrimagnetic materials Bandwidth Passband
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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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
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Properties of a Four-Port Nonreciprocal Circuit Utilizing YIG on Stripline - Filter and Circulator

Synthesis of Filter-Limiters Using Ferrimagnetic Resonators

A Design Technique for Realizing a Microwave Tunnel-Diode Amplifier in Stripline

A Tunable X-Band Band-Pass Filter Module Using YIG/GGG Layer on RT/Duroid Substrate

Side-Wall-Coupled, Strip-Transmission-Line Magnetically Tunable Filters Employing Ferrimagnetic YIG Resonators

Tunable wideband microwave band-stop and band-pass filters using YIG/GGG-GaAs layer structures

A YIG/GGG/GaAs-Based Magnetically Tunable Wideband Microwave Band-Pass Filter Using Cascaded Band-Stop Filters

Extending the Realizable Bandwidth of Edge-Coupled Stripline Filters

Wideband Microwave Filters Using Ferromagnetic Resonance Tuning in Flip-Chip YIG-GaAs Layer Structures

Nonreciprocal YIG filters

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