Title :
A High-Gain Dual-Band EBG Resonator Antenna with Circular Polarization
Author :
Zeb, Basit Ali ; Nikolic, Nasiha ; Esselle, Karu P.
Author_Institution :
Dept. of Eng., Macquarie Univ., North Ryde, NSW, Australia
Abstract :
A dual-band circularly polarized (CP) electromagnatic band-gap (EBG) resonator antenna (ERA) is presented. The antenna employs an all-dielectric superstructure, which consists of two identical unprinted dielectric slabs, and a dual-band corner-truncated patch feed. A prototype antenna is fabricated and tested using a superstructure made out of 3.175-mm-thick Rogers TMM10 material. Measured peak gains are 16.1 dBic [left-hand circular polarization (LHCP)] and 16.2 dBic [right-hand circular polarization (RHCP)], measured radiation efficiencies are 93% and 91%, and the boresight axial ratios are 1.9 and 1.5 dB at 9.65 and 11.75 GHz, respectively. This dual-band antenna is easy to fabricate, making it suitable for high-gain low-cost CP applications.
Keywords :
antenna feeds; antenna radiation patterns; cavity resonators; dielectric resonator antennas; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; photonic band gap; ERA; LHCP; RHCP; Rogers TMM10 material; boresight axial ratio; circular polarization; dielectric superstructure; dual band EBG resonator antenna; dual band circularly polarized electromagnetic band-gap resonator antenna; dual band corner truncated patch feed; left-hand circular polarization; radiation efficiency; right-hand circular polarization; unprinted dielectric slab; Cavity resonators; Dual band; Feeds; Metamaterials; Periodic structures; Cavity resonator; Fabry–Perot cavity; circular polarization; dual-band; electromagnetic band-gap; high-gain; partially reflecting surface; patch antenna; superstrate;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2356599
