NDLI: Broad-Band Noncontacting Short Circuits for Coaxial Lines: Part I. TEM-Mode Characteristics

Content Provider	IEEE Xplore Digital Library
Author	Huggins, W.H.
Copyright Year	1931
Abstract	This paper discusses the factors that must be considered in the design of an S-type noncontacting plunger, which will present an effective short circuit to the TEM-mode in a circular coaxial line over a frequency tuning ratio of 3 to 1 or more Since there are no sliding contacts, a coaxial resonator may be tuned an unlimited number of times with this type of plunger and still remain free from physical wear, "finger noise," and mechanical hysteresis and drag. It was the use of this type of plunger that made possible the development of local oscillators which can be tuned an unlimited number of times over a microwave frequency range as great as 2 to 1. Subsequent Parts II and III of this paper will deal with the analysis and methods of controlling the parasitic resonances which may occur in a noncontacting plunger when the operating wavelength is less than the circumference of the outer coaxial line.
Starting Page	906
Ending Page	913
Page Count	8
File Size	1660661
File Format	PDF
ISSN	00968390
Volume Number	35
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1947-09-01
Access Restriction	Subscribed
Rights Holder	The Institute of Radio Engineers, Inc. (IRE)
Subject Keyword	Coaxial components Tuned circuits Circuit optimization Fingers Circuit noise Signal to noise ratio Hysteresis Local oscillators Microwave frequencies Resonance
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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