Compact size of a Wilkinson power divider using impedance coordinate tracking based on T-shaped line
- Authors
- Yoon, Ki-Cheol; Chung, Taishin; Kim, Kwang Gi; Yoo, Heon
- Issue Date
- Aug-2019
- Publisher
- WILEY
- Keywords
- compact-size; impedance coordinate; Smith-chart; T-shaped transmission-line; Wilkinson power divider
- Citation
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.61, no.8, pp.1964 - 1967
- Journal Title
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
- Volume
- 61
- Number
- 8
- Start Page
- 1964
- End Page
- 1967
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1120
- DOI
- 10.1002/mop.31750
- ISSN
- 0895-2477
- Abstract
- This article presents the compact size of the Wilkinson power divider using T-shaped line through the impedance coordinate tracking progress at Smith-chart. After the series line impedance, electrical length, and stub impedance were calculated, the T-shaped line was designed through the impedance coordinate tracking in the Smith-chart. This reduced the entire size of the proposed power divider by an average of 4.81 times (79.2%) more than conventional structure. The experimental results of the S-21, S-31, and S-11 are 3.06 dB, 3.08 dB, and 25.04 dB at center frequency of 2.318 GHz, respectively. The experimented S-parameter difference between S-21 and S-31 is 3.0 dB. This proposed Wilkinson power divider can be applied to mobile communications and wireless medical communication systems.
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