Title :
Ultrawideband Performance of Dielectric Loaded T-Shaped Monopole Transmit and Receive Antenna/EMI Sensor
Author :
Ghosh, Saswati ; Chakrabarty, Ajay
Author_Institution :
Kalpana Chawla Space Technol. Cell, Indian Inst. of Technol., Kharagpur
fDate :
6/30/1905 12:00:00 AM
Abstract :
This letter presents the performance of a T-shaped monopole antenna loaded with an annular dielectric resonator as an ultrawideband transmitting/receiving antenna. By adjusting the length of the monopole and load arm, a 10-dB bandwidth of 110% is achieved while maintaining monopole-like radiation pattern. The antenna factor of the same antenna, while used as electromagnetic interference (EMI) sensor is also presented for the desired and cross-polarized component of incident electric field. The results for antenna factor show an ultrawide bandwidth with the cross-polarization isolation better than 86 dB/m for the T-monopole/DRA as EMI sensor. The simulated result for return loss is verified with the measured data from a prototype antenna.
Keywords :
antenna radiation patterns; dielectric resonator antennas; electromagnetic interference; monopole antennas; sensors; ultra wideband antennas; annular dielectric resonator; cross-polarization isolation; cross-polarized component; dielectric loaded T-shaped antenna; electromagnetic interference sensor; incident electric field; monopole receive antenna; monopole transmit antenna; monopole-like radiation pattern; ultrawideband antenna; Antenna factor; Dielectric resonator antenna; T-shaped monopole; Ultra wideband; dielectric resonator antenna (DRA); ultrawideband;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2008.921335
