Dual‐band W ilkinson power divider constructed using I ‐shaped lines

Dual‐band Wilkinson power dividers were constructed using I‐shaped lines. Inserting a stepped‐impedance stub in the middle of the lines could induce a shunt susceptance to achieve dual‐band 90° operation. The proposed circuit structure and synthesis equation had two degrees of freedom which could be...

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Published in:Microwave and optical technology letters 2015-09, Vol.57 (9), p.2034-2037
Main Authors: Chin, Kuo‐Sheng, Lin, Tzu‐Chiang, Chang, Chih‐Chun, Wang, Yu‐Chung, Kuo, Hao‐Che, Hu, Jyun‐Yi
Format: Article
Language:English
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Summary:Dual‐band Wilkinson power dividers were constructed using I‐shaped lines. Inserting a stepped‐impedance stub in the middle of the lines could induce a shunt susceptance to achieve dual‐band 90° operation. The proposed circuit structure and synthesis equation had two degrees of freedom which could be exploited to reduce the impedance and length of the lines. An experimental 2.4/5.2 GHz Wilkinson power divider was demonstrated. The measurement shows S21 = −3.24 dB and S31 = −3.21 dB at 2.4 GHz and S21 = −3.26 dB and S31 = −3.37 dB at 5.2 GHz. The measured isolation level was 35.95 dB (2.4 GHz) and 36.57 dB (5.2 GHz). © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2034–2037, 2015
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.29274