Title :
A Pair of Ultra-Wideband Planar Transitions for Phase Inversion Applications
Author :
Kim, Young-Gon ; Song, Sun-Young ; Kim, Kang Wook
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Daegu, South Korea
Abstract :
A pair of planar transitions which produce ultra-wideband (UWB) in-phase and inverted-phase signals has been developed for phase-inversion circuit applications. The two similar transitions consist of three transitional structures between microstrip line, coplanar waveguide, and parallel stripline. The proposed transitions offer design flexibility in achieving a wide range of impedances with various substrates. The implemented transitions provide low insertion loss, good impedance matching, and UWB performance from 2.1 to over 25 GHz within ±5° phase difference from 180°.
Keywords :
UHF circuits; coplanar waveguide components; impedance matching; microstrip transitions; microwave circuits; ultra wideband communication; coplanar waveguide; impedance matching; inphase signal; inverted phase signal; microstrip line; parallel stripline; phase inversion applications; phase inversion circuit; ultrawideband planar transition; Bandwidth; Circuits; Coplanar waveguides; Couplings; Frequency; Impedance; Microstrip; Stripline; Ultra wideband technology; Waveguide transitions; Coplanar waveguide (CPW); microstrip line; parallel stripline; phase inversion; transition; ultra-wideband (UWB);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2010.2051800
