4. CONCLUSIONS
A compact recon¯gurable antenna for RFID reader or notched UWB antenna application has been
presented. This antenna has been designed to be electronically recon¯gurable using MEMS switches.
The antenna dimensions have been optimized using DTO algorithm which has been implemented in
MATLAB and linked to the CST Microwave Studio simulator to simulate the antenna. The proposed
antenna presents adequate matching and quite stable omnidirectional radiation patterns. These
characteristics are acceptable not only for RFID systems but also for several multiband applications.
Good agreement between the measurement results and both of EM Simulator CST Microwave Studio
and that produced by FDTD program written with MATLAB has been achieved.