A novel dual-band rat-race coupler

Author

Arigong, Bayaner ; Jin Shao ; Mi Zhou ; Jun Ding ; Hyoung Soo Kim ; Hualiang Zhang

Author_Institution

Electr. Eng. Dept., Univ. of North Texas, Denton, TX, USA

fYear

2014

fDate

6-6 June 2014

Firstpage

1

Lastpage

3

Abstract

In this paper, a new dual-band 3dB 180° hybrid ring coupler is presented. The proposed coupler is composed of multiple transmission lines with identical characteristic impedance and electrical length and a dual-band 180° phase shifter. Based on the even-odd analysis, it is found that the proposed coupler can support a wide range of frequency ratio since its realization is mainly limited by the implementation of the dual-band 180° phase shifter. To prove the design concept, full-wave electromagnetic simulations are performed and an experimental prototype is fabricated. The measurement results match well with the theoretical and numerical results.

Keywords

coupled transmission lines; directional couplers; electromagnetic coupling; hybrid integrated circuits; microwave phase shifters; dual band 180° phase shifter; dual band hybrid ring coupler; dual band rat-race coupler; even-odd analysis; frequency ratio; full wave electromagnetic simulation; identical characteristic impedance; transmission lines; Directional couplers; Dual band; Equations; Mathematical model; Phase shifters; Power transmission lines; Directional coupler; half-wavelength phase shifter; hybrid ring coupler; microwave component;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Microwave Technology Conference (WAMICON), 2014 IEEE 15th Annual

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/WAMICON.2014.6857737

Filename

6857737