Title :
Analysis of cascaded quasi-optical grids
Author :
Bundy, S.C. ; Shiroma, Wayne A. ; Popovic, Z.B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
A general analysis method for cascaded grids is presented. The method is based on a full-wave theory for arbitrary periodic metal gratings printed on dielectrics and loaded with active or passive lumped devices. Each quasi-optical component is characterized by a multiport network, in which two of the ports represent the free-space regions on both sides of the grid surface, and the remaining ports are connected to the lumped loads. This approach allows cascading of quasi-optical components using transmission-line theory. Experimental validation between 2-18 GHz is presented for cascaded gratings loaded with lumped capacitors and resistors.<>
Keywords :
S-parameters; distributed parameter networks; equivalent circuits; frequency selective surfaces; microwave devices; multiport networks; transmission line theory; 2 to 18 GHz; analysis method; cascaded quasi-optical grids; dielectrics; full-wave theory; lumped devices; multiport network; periodic metal gratings; quasi-optical component; transmission-line theory; Capacitors; Dielectric devices; Dielectric substrates; Equivalent circuits; Frequency; Geometry; Gratings; Mirrors; Oscillators; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.405934
