Title :
A miniaturized rat-race coupler with arbitrary power division using dual transmission lines
Author :
Ching-Hsing Lu ; Po-Hsiang Tu ; Chao-Hsiung Tseng
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
In this paper, the dual transmission line is exploited to implement a miniaturized rat-race coupler with an arbitrary power division ratio. The dual transmission line is composed of two parallel-connected high-impedance transmission lines with unequal electrical lengths. It has the advantage of the circuit layout flexibility and the circuit size reduction. The developed rat-race coupler only occupies a 41.5 % circuit size of the conventional one.
Keywords :
UHF couplers; power dividers; transmission lines; arbitrary power division ratio; circuit layout flexibility; circuit size reduction; dual transmission lines; miniaturized rat-race coupler; parallel-connected high-impedance transmission lines; unequal electrical lengths; Couplers; Frequency measurement; Impedance; Layout; Ports (Computers); Power transmission lines; Transmission line measurements; Rat-race coupler; dual transmission line; unequal-power division;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421807
