Title :
An investigation on high-gain dual-polarized cavity reflex antenna using slotted-patch FSS superstrate
Author :
Sharma, Kamna ; Vaid, Swati ; Mittal, Anish
Author_Institution :
Dept. of Electron. & Commun., Ambedkar Inst. of Adv. Commun. Technol. & Res., New Delhi, India
Abstract :
This paper presents the analysis of high gain dual polarized cavity reflex antenna (CRA) using two different geometries (i.e. square and circular) of slotted patch type frequency selective surface (FSS) superstrate. A microstrip patch antenna is used as a primary feed for both the configurations. The structures are analyzed using FEM based Ansoft HFSS and 3D-EM Solver CST Studio Suite. The results from both the configurations are compared to understand the effect of FSS unit cell´s geometry on CRA´s performance. It is observed that the geometry plays a significant role, affecting the frequency separation as well as other radiation parameters of the dual polarized antenna. High gain in the range of 16-20dB (approx), is observed from both the configurations for two orthogonal linear polarizations.
Keywords :
antenna feeds; finite element analysis; frequency selective surfaces; microstrip antennas; polarisation; slot antennas; 3D-EM Solver CST Studio Suite; FEM based Ansoft HFSS; dual polarized antenna; frequency selective surface superstrate; frequency separation; high-gain dual-polarized cavity reflex antenna; microstrip patch antenna; orthogonal linear polarizations; primary feed; radiation parameters; slotted-patch FSS superstrate; Cavity resonators; Frequency selective surfaces; Gain; Geometry; Reflection; Resonant frequency; cavity reflex antenna; frequency selective surface; partially reflective surface; superstrate layer;
Conference_Titel :
Computing, Communications and Networking Technologies (ICCCNT),2013 Fourth International Conference on
Conference_Location :
Tiruchengode
Print_ISBN :
978-1-4799-3925-1
DOI :
10.1109/ICCCNT.2013.6726800
