Two Methods for Miniaturization of Stub Quadrature Couplers
- Authors: Letavin D.A.1
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Affiliations:
- Ural Federal University named after the first President of Russia B.N. Yeltsin
- Issue: Vol 63, No 8 (2018)
- Pages: 933-935
- Section: Microwave Electronics
- URL: https://journals.rcsi.science/1064-2269/article/view/200073
- DOI: https://doi.org/10.1134/S1064226918080107
- ID: 200073
Cite item
Abstract
Two circuit-topological methods for reducing the overall dimensions of stub quadrature coupler (SQCs) are considered. The essence of the presented methods lies in replacing quarter-wave stubs with low-pass filters and artificial transmission lines (ATLs). It is shown that, using these methods, it is possible to reduce dimensions of two-stub and five-stub coupler by 71.9%. The design and experimental characteristics are presented; it is found out that the band of operating frequencies of compact SQCs is 1.4 times less than the bandwidth of conventional coupler and the imbalance of the power division coefficient increases.
About the authors
D. A. Letavin
Ural Federal University named after the first President of Russia B.N. Yeltsin
Author for correspondence.
Email: d.a.letavin@urfu.ru
Russian Federation, Yekaterinburg, 620002