Title :
Nonresonant Microstrip Patch-Fed Dielectric Resonator Antenna Array
Author :
Rana, B. ; Parui, S.K.
Author_Institution :
Indian Inst. of Eng. Sci. & Technol., Electron. & Telecommun. Eng., Shibpur, India
Abstract :
A cylindrical dielectric resonator antenna (CDRA) fed by nonresonant microstrip patch excites HEM12δ mode for efficient radiation. A 2 × 2 antenna array with such an antenna element is designed at the center frequency of 9.04 GHz for obtaining higher directive gain. A prototype has been fabricated with FR-4 substrate, and experimental measurements have been carried out. The array offers an impedance bandwidth of 2.9% and a maximum gain of 14.8 dBi at the operating frequency. A good agreement has been obtained between the measured and simulated results.
Keywords :
antenna feeds; dielectric resonator antennas; microstrip antenna arrays; microwave antenna arrays; FR-4 substrate; HEM12δ mode; cylindrical dielectric resonator antenna; directive gain; frequency 9.04 GHz; impedance bandwidth; nonresonant microstrip patch; nonresonant microstrip patch-fed dielectric resonator antenna array; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Dielectric resonator antennas; Dielectrics; Microstrip; Antenna gain; cylindrical DRA (CDRA); dielectric resonator antenna (DRA); nonresonant microstrip patch;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2379624
