A new Ka-band 180° hybrid coupler

Author

Yunxia Wang ; Wang, Harry

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA

fYear

2015

fDate

13-15 April 2015

Firstpage

1

Lastpage

3

Abstract

A new wide band 180° hybrid coupler is proposed in microstrip line structure, which is easy to fabricate and suitable for microwave integrated circuits (MICs) and monolithic microwave integrated circuits (MMICs). The hybrid consists of a Wilkinson power splitter and a short circuit stub 180° differential phase shifter. Due to the simplicity of structure, this circuit is easy to implement at very high frequency band. Based on the proposed configuration, a Ka-band (26.5 to 40 GHz) 180° hybrid coupler is designed and implemented on RF/duroid 5880 dielectric material. The phase variation of ±5° and the amplitude difference of ±0.4 dB were measured from 26.5 GHz to 40 GHz. The experiment verified the theoretical results favorably.

Keywords

dielectric materials; microstrip couplers; microstrip lines; phase shifters; Ka-band hybrid coupler; MMIC; RF-duroid 5880 dielectric material; Wilkinson power splitter; frequency 26.5 GHz to 40 GHz; microstrip line structure; monolithic microwave integrated circuits; short circuit stub differential phase shifter; wide band hybrid coupler; Microwave circuits; Microwave measurement; hybrid coupler; microwave component; phase shifter; power splitter;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Microwave Technology Conference (WAMICON), 2015 IEEE 16th Annual

Conference_Location

Cocoa Beach, FL

Type

conf

DOI

10.1109/WAMICON.2015.7120354

Filename

7120354