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Compact size of a Wilkinson power divider using impedance coordinate tracking based on T‐shaped line
Author(s) -
Yoon KiCheol,
Chung Taishin,
Kim Kwang Gi,
Yoo Heon
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31750
Subject(s) - wilkinson power divider , stub (electronics) , smith chart , impedance matching , electrical impedance , electrical engineering , current divider , power dividers and directional couplers , chart , line (geometry) , wireless , engineering , telecommunications , mathematics , frequency divider , geometry , statistics
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.