NDLI: E-Plane Forked Hybrid-T Junction

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E-Plane Forked Hybrid-T Junction

Content Provider	IEEE Xplore Digital Library
Author	Kahn, W.K.
Copyright Year	1955
Description	A novel rearrangement of the waveguides of a microwave hybrid-T junction has been investigated. This junction is formed by the intersection of four rectangular waveguides, two of which (conventionally E and H arms) are mutually perpendicular, cross-polarized, and have their centerlines in one symmetry plane of the junction; the remaining two waveguide arms are formed by symmetric E-plane bifurcation of the E-arm waveguide extended. This hybrid T possesses special advantages with regard to match and pulse power capacity. A special test fixture was constructed of 1.122- X 0.497-inch rectangular waveguide. Experimental design work was carried out over a 12 per cent range of frequencies from 8.5 to 9.6 kmc. The H-arm reflection was reduced to 2.6-db standing-wave ratio (swr) by simple shaping of the bifurcating element. Addition of conventional matching elements resulted in maximum reflections, within the above band, of 0.8 and 0.6 db swr in the H and E arms, respectively. The ultimate limitation on the E-arm power capacity, as fixed by the intensified electric field at the leading (rounded) edge of the center partition, was computed to be 2 db below uniform waveguide. Experimental corroboration has been obtained.
Starting Page	52
Ending Page	58
Page Count	7
File Size	1024550
File Format	PDF
ISSN	00972002
Volume Number	3
Issue Number	6
Language	English
Publisher Date	1955-12-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hybrid junctions Waveguide junctions Rectangular waveguides Planar waveguides Arm Bifurcation Reflection Testing Fixtures Design for experiments
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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