Title :
A wideband planar microstrip to coplanar stripline transition (balun) at 35 GHz
Author :
Leufker, Jan Dirk ; Strobel, Axel ; Carta, C. ; Ellinger, F.
Author_Institution :
Dept. of Circuit Design & Network Theor., Tech. Univ. Dresden, Dresden, Germany
Abstract :
A novel approach for wideband planar baluns is presented, which enables the realization with just two instead of three transmission lines. The analysis of the principle of operation and a suitable design procedure are described. Measurement results of test structures are compared to EM simulations. Two variants of this balun were designed for a center frequency of 35 GHz. Measurements show an absolute 3 dB-back-to-back insertion loss bandwidth of 16.7 GHz and 10.1 GHz with minimum losses of 0.38 dB and 0.71 dB respectively. The extrapolated absolute 1 dB insertion loss bandwidths of the single baluns are 14.5 GHz and 14.4 GHz respectively.
Keywords :
baluns; broadband networks; coplanar waveguides; microstrip lines; millimetre wave measurement; transmission lines; EM absolute insertion loss bandwidth; bandwidth 10.1 GHz; bandwidth 16.7 GHz; coplanar stripline transition; frequency 14.4 GHz; frequency 14.5 GHz; frequency 35 GHz; insertion loss bandwidths; single baluns; transmission lines; wideband planar baluns; wideband planar microstrip; Bandwidth; Impedance; Impedance matching; Insertion loss; Loss measurement; Microstrip; Transmission line measurements; balun; coplanar stripline; microstrip; millimeter wave; transition; wideband;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2013 9th Conference on
Conference_Location :
Villach
Print_ISBN :
978-1-4673-4580-4
DOI :
10.1109/PRIME.2013.6603166
