Title :
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
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;
Conference_Titel :
Wireless and Microwave Technology Conference (WAMICON), 2015 IEEE 16th Annual
Conference_Location :
Cocoa Beach, FL
DOI :
10.1109/WAMICON.2015.7120354
