NDLI: Wideband Planar Transmission Line Pin-Diode Attenuator/Modulator

Content Provider	IEEE Xplore Digital Library
Author	Rehnmark, Stig
Copyright Year	1975
Description	Author affiliation: Division of Network Theory, Chalmers university of Technology, Fack, S-402 20 Gothenburg 5, Sweden (Rehnmark, Stig)
Abstract	A new principle for wideband attenuators is presented: The attenuator consists of power dividers, 90-degree phase shifters, and PIN-diodes. The power reflected at the diodes is absorbed by the isolation resistors of one of the power dividers. A new technique for phase shifters is presented: Allpass meander line networks of low order have been developed and used instead of conventional phase shifters. Equivalent circuits with well known properties have made it straight-forward to calculate the allpass conditions. Multilayer technique has been avoided by the use of meander lines. Experimental verification: An experimental stripline device covering 2-7.2 GHz with a VSWR of less than 1.85 is shown. Another device, also in stripline, covers 6-18 GHz with a VSWR of less than 2.15. The results are in good agreement with the theory presented.
Starting Page	128
Ending Page	132
File Size	4454858
Page Count	5
File Format	PDF
DOI	10.1109/EUMA.1975.332166
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1975-09-01
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Planar transmission lines Attenuators Phase shifters Power dividers Stripline Diodes Resistors Equivalent circuits Nonhomogeneous media
Content Type	Text
Resource Type	Article

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