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Abstract
In this work, a step-by-step development of a compact microstrip rat-race coupler (RRC) has been presented and discussed. A high degree of miniaturization has been obtained by substituting six quarter-wavelength uniform atomic building blocks of a RRC by their nonuniform counterparts. The miniaturization procedure has been realized in three progressive steps: (i) the first layout solution of a miniaturized RRC has been acquired by using an accurate mathematical model of a nonuniform transmission line (NUTL); (ii) the second layout solution has been obtained by a manual refinement and EM fine-tuning of the NUTL geometry aimed at the utilization of the interior of the RRC in a highly efficient manner; (iii) the final layout, occupying only 8.5% estate area in comparison to a conventional RRC, is the result of the EM optimization. The experimental results confirm the theoretical predictions, proving the vital usefulness of the approach.
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
no. 56,
pages 970 - 974,
ISSN: 0895-2477 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Bekasiewicz A., Kurgan P.: A compact microstrip rat-race coupler constituted by nonuniform transmission lines// MICROWAVE AND OPTICAL TECHNOLOGY LETTERS. -Vol. 56, nr. 4 (2014), s.970-974
- DOI:
- Digital Object Identifier (open in new tab) 10.1002/mop.28216
- Verified by:
- Gdańsk University of Technology
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