Title :
A W-band transition from coplanar waveguide to rectangular waveguide
Author :
Shireen, R. ; Shi, S. ; Yao, P. ; Schuetz, C.A. ; Macario, J. ; Prather, Dennis W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE
Abstract :
This paper presents conversion from coplanar waveguide (CPW) to fundamental rectangular waveguide mode for millimeter-wave applications. The transition is designed using cosine shaped fin to give broadband operation. It provides an efficient solution to in-line integration with optoelectronic devices on lithium niobate for the applications of millimeter-wave to optical signal processing. Optimization of the model is carried out using 3-D finite element method solver HFSS by Ansoft Corporation. Measurements of a fabricated device have yielded return loss below -15 dB and insertion loss about -3.5 dB over full W-band (75-110 GHz).
Keywords :
coplanar waveguides; finite element analysis; microwave photonics; optical information processing; rectangular waveguides; LiNbO3; W-band transition; coplanar waveguide; frequency 75 GHz to 110 GHz; in-line integration; lithium niobate; loss -15 dB; loss -3.5 dB; millimeter-wave applications; optical signal processing; optoelectronic devices; rectangular waveguide; three-dimensional finite element method; Coplanar waveguides; Lithium niobate; Millimeter wave measurements; Millimeter wave technology; Optical losses; Optical signal processing; Optical waveguides; Optoelectronic devices; Rectangular waveguides; Waveguide transitions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619920
