Title :
Periodic stepped-impedance rat race coupler with arbitrary power division
Author :
Chiou, Yi-Chyun ; Wu, Juo-Shiuan ; Kuo, Jen-Tsai
Author_Institution :
Nat. Chiao Tung Univ., Hsinchu
Abstract :
Periodic stepped-impedance ring resonators are devised for implementing rat race couplers with a miniaturized area and arbitrary power division. Design parameters of the proposed rat race coupler include impedance and length ratios of the high-Z and low-Z segments. Realized by the standard microstrip technology, two such couplers are designed and fabricated to have power split ratios 3 dB and 6 dB, respectively. Experimental results validate the analysis and theoretical prediction.
Keywords :
microstrip lines; power dividers; resonators; arbitrary power division; high-Z segments; low-Z segments; microstrip technology; periodic stepped-impedance; rat race coupler; ring resonators; Bandwidth; Coplanar waveguides; Coupling circuits; Directional couplers; Distributed parameter circuits; Impedance; Microstrip; Optical ring resonators; Power transmission lines; Transmission line theory; Coupler; miniaturized; power division; rat race; stepped-impedance resonator;
Conference_Titel :
Microwave Conference, 2006. APMC 2006. Asia-Pacific
Conference_Location :
Yokohama
Print_ISBN :
978-4-902339-08-6
Electronic_ISBN :
978-4-902339-11-6
DOI :
10.1109/APMC.2006.4429507
