Title :
Rat-race based microstrip coupler with differential port to realize monostatic RF systems
Author :
Jungmaier, R-W. ; Feger, R. ; Prammer, B. ; Jäger, H. ; Stelzer, A.
Author_Institution :
Institute for Communications Engineering and RF-Systems, Johannes Kepler University, Linz, Austria
Abstract :
In this work a rat-race based microstrip coupler, usable to realize monostatic RF systems, is presented. The coupler combines the two functions of separating the transmit (TX) and receive signal together with the conversion from a differential to a single-ended TX signal since two ports of the proposed five port coupler can be used as a differential port. The two functions are realized in a single microstrip structure, leading to decreased losses and a space-saving layout. Simulations and measurements at 79GHz confirm the function of the coupler.
Keywords :
Antenna measurements; Couplers; Microstrip; Mixers; Radar; Radar antennas; Radio frequency; Couplers; microwave devices; radar;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259768
