Improvement of Isolation Characteristics of Multi-Way Power Divider Using TE10-TEp0 Mode Transducer

Mitsuyoshi KISHIHARA  Isao OHTA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E101-C    No.10    pp.831-835
Publication Date: 2018/10/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E101.C.831
Type of Manuscript: BRIEF PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
microwave,  mode transducer,  power divider/combiner,  H-plane waveguide,  

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Summary: 
Recently, a multi-way TE10 mode power divider based on the TE10-TEp0 mode transducers consisting of a linearly arranged single-mode waveguide (SMWG) and an over-moded waveguide (OMWG) has been reported. However, the multi-way power divider based on the present mode transducer results in poor isolation and output matching characteristics. In this paper, an improvement of the isolation and the output matching characteristics is attempted by inserting the resistive sheets in the OMWG. It is shown that the isolation characteristics of about 20 dB are achieved by adjusting the dimensions of the resistive sheets. The validity of the design results is confirmed by an experiment.