Title :
Circuit Models and Implementations of Electronically Tunable Reflectarray Elements
Author_Institution :
Toronto Univ., Toronto
Abstract :
This paper presents a modeling technique based on an equivalent circuit for predicting the scattering response of electronically tunable reflectarray elements. The model is used to analyze ETR elements tuned using variable capacitances. Several tuning topologies are described and evaluated, including a tunable polarization-twist element.
Keywords :
antenna arrays; equivalent circuits; reflector antennas; tuning; circuit models; electronically tunable reflectarray elements; equivalent circuit; scattering response; tunable polarization twist element; tuning topologies; variable capacitances; Capacitance; Circuit optimization; Diodes; Electromagnetic scattering; Electromagnetic waveguides; Equivalent circuits; Power transmission lines; Tunable circuits and devices; Tuning; Varactors;
Conference_Titel :
Electromagnetics in Advanced Applications, 2007. ICEAA 2007. International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-0767-5
Electronic_ISBN :
978-1-4244-0767-5
DOI :
10.1109/ICEAA.2007.4387493
