Title :
Dual-polarized resonant cavity antenna using slotted-circular patch FSS
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 theory and design of a dual-band dual-polarized high gain Resonant Cavity Antenna (RCA). RCA with slotted circular patch frequency selective surface (FSS) is used atop primary feed i.e., microstrip patch antenna at a height of ~λ/2. The proposed structure is simulated using FEM based HFSS and 3D-EM Solver CST Studio Suite. The slot type defect is introduced in the patch FSS to obtain dualband with orthogonal polarization. It is demonstrated how using a slot, linearly polarized RCA gets converted to orthogonally polarized antenna. A gain of upto 16dB (approx) can be achieved at the two bands with different polarization using this structure. The simulation plots of current density on FSS are also studied, to understand the phenomenon.
Keywords :
finite element analysis; frequency selective surfaces; metamaterial antennas; microstrip antennas; microwave antennas; slot antennas; 3D electromagnetic solver; FEM; dual polarized resonant cavity antenna; frequency selective surface; linearly polarized RCA; microstrip patch antenna; orthogonally polarized antenna; primary feed; slot type defect; slotted circular patch FSS; Cavity resonators; Frequency selective surfaces; Gain; Microstrip; Microstrip antennas; Reflection; Resonant frequency; cavity resonant antenna; frequency selective surface; partially reflective surface; superstrate layer;
Conference_Titel :
RF and Microwave Conference (RFM), 2013 IEEE International
Conference_Location :
Penang
Print_ISBN :
978-1-4799-2213-0
DOI :
10.1109/RFM.2013.6757221
