NDLI: Some Characteristics of Dielectric Image Lines at Millimeter Wavelengths

Content Provider	IEEE Xplore Digital Library
Author	Wiltse, J.C.
Copyright Year	1955
Description	The attenuation characteristics of several dielectric image lines have been calculated for the frequency range extending from 24 to 100 kmc and have been checked experimentally at 35 and 70 kmc. To obtain low attenuation at these high frequencies, dielectric materials with little loss and small size of cross section are required, while low values of the dielectric constant are also desirable. The effects of the size and shape of the dielectric cross section and of low dielectric constant are treated separately. To find proper materials with low dielectric constants several new foam plastics were investigated. Three types were found suitable for image line use, and in fact, these plastics have such good electrical and physical properties that they should be useful in many microwave applications. A qualitative measure of field extent is given for several image lines at 35 or 70 kmc, and various image lines and associated components are discussed. A new type of image line, called the tape line, is described.
Starting Page	65
Ending Page	69
Page Count	5
File Size	731785
File Format	PDF
ISSN	00972002
Volume Number	7
Issue Number	1
Language	English
Publisher Date	1959-01-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dielectric losses Attenuation Frequency Dielectric constant Shape Dielectric materials Plastics Dielectric measurements Rectangular waveguides Waveguide theory
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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