A Simple and Compact Planar Balun with Slit Ground

Ryosuke SUGA; Kazuto OSHIMA; Tomoki UWANO

doi:10.1587/transele.2021ECS6003

IEICE Transactions on Electronics

Online ISSN : 1745-1353
Print ISSN : 0916-8524

This article has now been updated. Please use the final version.

A Simple and Compact Planar Balun with Slit Ground

Ryosuke SUGA, Kazuto OSHIMA, Tomoki UWANO

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Keywords: Balun, microstrip line, slit, spertopf balun, common mode rejection ratio

JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: 2021ECS6003

DOI https://doi.org/10.1587/transele.2021ECS6003

The final version of this article is now available: Vol. E104.C (2021), No. 11 pp. 667-671

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Abstract

In this paper, a planar balun having simple and compact features with slit ground was proposed. The operating frequency can be designed by the length and position of the defected ground slits. The 20 dB bandwidth of the common mode rejection ratio of the measuring balun was over 90%.

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