Abstract
A reconfigurable antenna is an antenna with parameters that can be varied according to therequirements of a particular situation. Under variable parameters we can understand the operatingfrequency range, radiation pattern, polarization, as well as various combinations of these parameters.In this paper, we propose the design of a reconfigurable microstrip antenna with tunablefrequency and polarization, and investigate its radiation pattern and polarisation properties. Theantenna has compact dimensions and can be used in wireless communication systems operating inthe 2–7 GHz range. 5 pin diodes are included into the antenna design to change the resonant frequencyand polarization of the antenna by turning the diodes on and off. The simulation of theproposed antenna was performed in the FEKO program and the main parameters of the antennawere obtained. The analysis of the simulation results showed that for the lower part of the studiedfrequency range (2.05, 2.45 and 3.7 GHz), the polarization is linear. When operating in the highersub-range (5.4, 5.6 and 5.75 GHz), the antenna is circularly polarized, and the direction of thepolarisation vector rotation depends on the connection of the diodes. This ability to switch polarizationto orthogonal at the same frequency allows to perform efficient signal reception in the conditionsof multipath propagation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
