NDLI: Compact 90<formula formulatype=inline><tex>$^{circ}$</tex></formula> Twist Formed by a Double-Corner-Cut Square Waveguide Section

Content Provider	IEEE Xplore Digital Library
Author	Kirilenko, A.A. Kulik, D.Y. Rud, L.A.
Copyright Year	1963
Abstract	Simple and compact rectangular waveguide 90deg twist is proposed. The twist transformer region is a square waveguide section with two square corner cuts. The twist full-wave model is based on the mode-matching and generalized S-matrix techniques. It is found that the optimized twists can provide the bandwidths of no less than 30% at the 30-dB return-loss level or 16% at the 40-dB level over a lower, middle, or higher part of the rectangular waveguide operating band. The twist lengths are five times less than the rectangular waveguide wavelength at the central frequency of the chosen operating band. Role of evanescent modes in the interaction of two small-distanced twist transitions is discussed. The design results are confirmed by the results of real device measurements.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	1633
Ending Page	1637
Page Count	5
File Size	336005
File Format	PDF
ISSN	00189480
Volume Number	56
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rectangular waveguides Bandwidth Waveguide junctions Frequency Planar waveguides Waveguide components Wavelength measurement Microwave devices Millimeter wave communication Millimeter wave measurements rectangular waveguide twists Corner-cut rectangular waveguides mode-matching technique
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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