Title :
Experimental investigation for wideband perforated dielectric resonator antenna
Author :
Chair, R. ; Kishk, A.A. ; Lee, K.F.
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, MS, USA
Abstract :
A wideband perforated dielectric resonator antenna (PDRA) is presented. The effective permittivity of the dielectric resonator is altered by drilling holes into a circular ring lattice inside the DRA. The PDRA is equivalent of having an annular ring with lower permittivity outside the cylindrical disk, resulting in enhanced impedance bandwidth. The measured bandwidth of a prototype PDRA with relative permittivity 10.2 is 26.7% (S11<-10 dB).
Keywords :
antenna radiation patterns; broadband antennas; dielectric resonator antennas; permittivity; annular ring; circular ring lattice; cylindrical disk; effective permittivity; impedance bandwidth; perforated dielectric resonator antenna; relative permittivity; wideband antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063987
