Title :
A dual-band circular-polarized Dielectric Loaded Antenna (DLA)
Author :
Zhijiao Chen ; Parini, Clive G.
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Univ. of London, London, UK
Abstract :
We present a circular-polarization design of the dual-band Dielectric Loaded Antenna (DLA) for indoor access point applications. The DLA is different from the conventional DRA by inserting air gap between the dielectric resonator and the ground plane, which offers more degrees of design freedom and wider bandwidth. The proposed box-matched DLA propossess two wide-bands operation on 3.36-4.47 GHz (28.3%) and 4.60-6.78 GHz (38.3%), and keeps a 3 dB boresight axial ratio on 3.72-4.25 GHz (13.2%) and 5.45-5.85 GHz (7.08%). Consistant, directional radiation performance and antenna gain (4.7-6.5 dBi) over the two frequency ranges have been obtained. A simple fabrication process is employed, making the proposed DLA a low-cost candidate for indoor access point.
Keywords :
air gaps; dielectric resonator antennas; directive antennas; microwave antennas; multifrequency antennas; DLA; air gap; antenna gain; circular-polarized antenna; dielectric loaded antenna; dielectric resonator; direcitonal radiation performance; dual-band antenna; frequency 3.36 GHz to 4.47 GHz; frequency 4.60 GHz to 6.78 GHz; ground plane; indoor access point applications; simple fabrication process; Antenna measurements; Dielectric resonator antennas; Dielectrics; Gain; Loaded antennas; Polarization; Access Point; Circular-Polarization; Dielectric Loaded Antenna;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902498
