A Compact Wideband Crossover Coupler with Lumped Elements
- Authors
- Park, Kwangwon; Lee, Hyunkyu; Lee, Iljin; Kang, In-Woong; Jeon, Sanggeun
- Issue Date
- 4월-2019
- Publisher
- KOREAN INST ELECTROMAGNETIC ENGINEERING & SCIENCE
- Keywords
- Butler Matrix; Crossover Coupler; Lumped Elements; Planar Circuits
- Citation
- JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, v.19, no.2, pp.96 - 100
- Indexed
- SCOPUS
KCI
- Journal Title
- JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE
- Volume
- 19
- Number
- 2
- Start Page
- 96
- End Page
- 100
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/66500
- DOI
- 10.26866/jees.2019.19.2.96
- ISSN
- 2671-7255
- Abstract
- A compact wideband crossover coupler with fully lumped elements is presented. To achieve a wideband operation, a three-section branch-line structure is employed for the crossover coupler. The size is significantly minimized by replacing transmission lines with lumped elements. The measurement shows that the insertion loss, isolation, and return loss are 1.7 dB, 24 dB, and 14.5 dB, respectively, at 2 GHz. The fractional bandwidth of 20-dB isolation and 3-dB insertion loss is 27%. The size of the crossover coupler is 11 mm X 9 mm, which corresponds to 0.07 lambda X 0.06 lambda at 2 GHz. This is significantly smaller than a conventional three-section branch-line crossover coupler by 95%.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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