CST – Computer Simulation Technology

Tunable SRR-based substrate for a microstrip patch antenna
Adnan Sondas¸, Mustafa Hikmet Bilgehan Uçar, Yunus Emre Erdemli
Turkish Journal of Electrical Engineering & Computer Sciences
Volume: 20, Issue: 1, January 2012
Microstrip patch antenna, split-ring resonator, frequency tuning, miniaturization, practical switch modeling
In this paper, a microstrip patch antenna over an artificial substrate composed of split-ring resonator (SRR) elements is introduced. As the SRR-based substrate provides miniaturization for the patch, metallic loadings placed between the rings of the SRR elements offer frequency-tuning capability. Practical switch models are employed in lieu of those loadings to demonstrate dynamic control of the operational frequency. The full-wave analysis and design of the proposed tunable patch were carried out using CST Microwave Studio, and the cross-comparisons were provided via Ansoft HFSS. Preliminary measurements are also presented, demonstrating the prospective performance of the proposed design.

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