Title :
Dual-band rat-race hybrid design with considering of junction reactance
Author :
Xu-chun, Zhang ; Ya-jun, Hu ; Chang-hong, Liang
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
The design of rat-race hybrid that can operate at two widely separated frequency bands is presented. The junction reactance is considered in the design process. The final circuit has an asymmetrical structure. The proposed circuit features high isolation, wide bandwidth (lager than 300MHz at low operating frequency band and 250MHz at high operating frequency band). For validation, both simulated and measured performances of a microstrip rat-race coupler operating at 2.45/5.8 GHz are shown.
Keywords :
UHF couplers; electric reactance; microstrip couplers; asymmetrical structure; bandwidth 250 MHz; design process; dual-band rat-race hybrid design; frequency 2.45 GHz; frequency 5.8 GHz; junction reactance; microstrip rat-race coupler; Bandwidth; Couplers; Dual band; Impedance; Insertion loss; Junctions; Microwave theory and techniques;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6229900
