Title :
Via-less microwave crossover using microstrip-CPW transitions in slotline propagation mode
Author :
U-yen, Kongpop ; Wollack, Edward J. ; Moseley, Samuel H. ; Stevenson, Thomas R. ; Hsieh, Wen-Ting ; Cao, Nga T.
Author_Institution :
Goddard Space Flight Center, NASA, Greenbelt, MD, USA
Abstract :
This paper presents the design of a microstrip-CPW transition where the CPW line propagates close to slotline mode. This design allows the solution to be determined entirely though analytical techniques. In addition, a planar via-less microwave crossover using this technique is proposed. The experimental results at 5 GHz show that the crossover has a minimum isolation of 32 dB. It also has low in-band insertion loss and return loss of 1.2 dB and 18 dB respectively over more than 44% of bandwidth.
Keywords :
coplanar waveguides; microstrip transitions; slot lines; waveguide transitions; frequency 5 GHz; loss 1.2 dB; loss 18 dB; microstrip-coplanar waveguide transitions; microwave crossover; slotline propagation mode; Conductors; Coplanar waveguides; Electromagnetic waveguides; Microstrip; Microwave circuits; Microwave propagation; Microwave theory and techniques; Slotline; Strips; Waveguide transitions; Coplanar waveguides; microstrip transitions; microwave circuits;
Conference_Titel :
Microwave Symposium Digest, 2009. MTT '09. IEEE MTT-S International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2803-8
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2009.5165875
