NDLI: Development of folded dual-polarization dividers for broadband ortho-mode transducers

Content Provider	IEEE Xplore Digital Library
Author	Ruiz-Cruz, Jorge A. Montejo-Garai, Jose R. Leal-Sevillano, Carlos A. Rebollar, Jesus M.
Copyright Year	2015
Description	Author affiliation: Escuela Politécnica Superior, Universidad Autónoma de Madrid, C/ Francisco Tomas y Valiente 11, Madrid 28409, Spain (Ruiz-Cruz, Jorge A.) \|\| Dpto. de Electromagnetismo y Teoría de Circuitos, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, Madrid 20840, Spain (Montejo-Garai, Jose R.; Leal-Sevillano, Carlos A.; Rebollar, Jesus M.)
Abstract	A waveguide divider with folded lateral arms is presented for separating dual orthogonal linear polarizations in broadband ortho-mode transducers. The structure is based on a well-known double symmetry junction, where the metallic pins have been eliminated and the lateral outputs have been folded to achieve a combined effect: matching for the vertical polarization and a very significant size reduction. In addition, since the path for the lateral branches has been reduced, the insertion losses for the different polarizations are balanced. The isolation between orthogonal polarizations is kept because of the double-symmetry of the junction. From the mechanical point of view, the proposed junction allows a more simple manufacture and assembly of the ortho-mode transducer parts, which has been shown with a Ku-band design, covering the full Ku-band from 12.6 to 18.25 GHz. The experimental prototype has demonstrated a measured return loss better than 28 dB in the design band and insertion loss smaller than 0.15 dB for both polarizations.
Starting Page	1
Ending Page	3
File Size	221984
Page Count	3
File Format	PDF
ISBN	9781479987658
e-ISBN	9781479987672
DOI	10.1109/APMC.2015.7413067
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-12-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transducers Junctions Pins Broadband antennas Insertion loss Broadband communication Frequency measurement linear dual polarization B⊘ifot Junction Broadband Ku-band OMT
Content Type	Text
Resource Type	Article

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