Title :
Synthesis of Hecken-tapered microstrip to Paralell-Strip baluns for UHF frequency band
Author :
Carro, Pedro L. ; De Mingo, Jesus ; Garcia-Ducar, Paloma ; Sanchez, César
Author_Institution :
Univ. of Zaragoza, Zaragoza, Spain
Abstract :
Microstrip to Parallel-Strip transitions are frequently used for feeding balanced antenna structures, such as dipoles and printed spiral antennas. In this paper, we propose an analytical method to compute the gradual taper using a Hecken approach in order to minimize the return losses and to have continuity. The proposed method is verified experimentally with the aid of three transitions including matching capabilities with different ratios, suitable for spiral antenna structures in, at least, the ranges from 450 MHz to 2 GHz.
Keywords :
baluns; finite element analysis; microstrip circuits; Hecken-tapered microstrip; UHF frequency band; balanced antenna structures; frequency 450 MHz to 2 GHz; gradual taper; paralell-strip baluns; Geometry; Impedance; Impedance matching; Microstrip; Microstrip antennas; Strips; Transmission line measurements; Balun; parallel-strip line; taper;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972676
