Title :
A Novel Cup-Shaped Inverted Hemispherical Dielectric Resonator Antenna for Wideband Applications
Author :
Mukherjee, Biswanath ; Patel, Pragati ; Mukherjee, Jayanta
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Mumbai, Mumbai, India
Abstract :
A novel cup-shaped dielectric resonator antenna (DRA) geometry based on inverted hemispherical dielectric resonator antenna (HDRA) is proposed and investigated. The material used for investigation is Rogers TMM10, which is a ceramic thermoset polymer composite material having a dielectric constant of εr = 9.2. The cup-shaped geometry offers a wideband of 83% impedance bandwidth for dB at 2.3 GHz. Two modes have also been investigated which show the presence of TM101-like mode and TM01δ-like mode of the cylindrical DRA. The peak gain observed is 4.5 dBi at around 2.3 GHz. The measured results show that the efficiency is above 90% for the bandwidth of operation.
Keywords :
broadband antennas; ceramics; dielectric resonator antennas; filled polymers; Rogers TMM10; TM01δ-like mode; TM101-like mode; ceramic thermoset polymer composite material; cup shaped geometry; cup shaped inverted hemispherical dielectric resonator antenna; cylindrical DRA; dielectric constant; frequency 2.3 GHz; impedance bandwidth; wideband application; Bandwidth; Broadband antennas; Dielectric resonator antennas; Dielectrics; Geometry; Probes; Resonant frequency; Bandwidth; efficiency; gain; hemispherical dielectric resonator antenna; modes;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2283213
