Title :
Novel design for coplanar waveguide to microstrip transition
Author :
Safwata, A.M.E. ; Zaki, K.A. ; Johnson, W. ; Lee, C.H.
Author_Institution :
Lab. for Phys. Sci., Maryland Univ., College Park, MD, USA
Abstract :
A new design of a coplanar waveguide (CPW) to microstrip transition is presented. Simulation using the high frequency simulator software (HFSS) shows that a bandwidth of 13 GHz with less than -25 dB return loss can be achieved. The transition was fabricated and characterized. Experimentally, the S/sub 11/ of two back to back conductor backed CPW to microstrip transitions on InP substrate is better than -12 dB up to 14 GHz. For alumina substrate the S/sub 11/ was less than -15 dB up to 25 GHz.
Keywords :
MMIC; coplanar waveguides; integrated circuit design; integrated circuit packaging; losses; microstrip transitions; 13 GHz; 14 GHz; 25 GHz; Al/sub 2/O/sub 3/; InP; back to back conductor; coplanar waveguide to microstrip transition; high frequency simulator software; return loss; Bandwidth; Computational modeling; Conductors; Coplanar waveguides; Educational institutions; Frequency; Microstrip; Probes; Surface impedance; Waveguide transitions;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.966968
