A Waveguide-Based Power Divider Using H-Plane Probes Short-Circuited with Substrate Metallization Patterns

Motomi ABE
Yukihiro TAHARA
Hideyuki OH-HASHI
Naofumi YONEDA
Yoshihiko KONISHI

IEICE TRANSACTIONS on Electronics   Vol.E92-C    No.9    pp.1144-1149
Publication Date: 2009/09/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E92.C.1144
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies and Their Applications)
power divider,  coaxial-to-waveguide transition,  waveguide,  substrate,  coaxial probe,  

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A novel waveguide power divider based on a coaxial-to-waveguide transition using a H-plane probe is presented. The waveguide consists of split metal blocks and substrates which are alternately stacked. The power divider is realized by arranging identical transitions using coaxial probes short-circuited with metal patterns on the substrate. The parasitic reactance of probes can be canceled out with the metal patterns on the substrate, so it is ease to design the power divider. The advantages of this structure are small footprint, low insertion loss, simple fabrication, and ease of design. A design method of the proposed power divider is described. The fabricated eight-way power divider shows excellent performances at 10 GHz-band.