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International Journal of Antennas and Propagation
Volume 2014, Article ID 850736, 5 pages
Research Article

A Cylindrical Dielectric Resonator Antenna-Coupled Sensor Configuration for 94 GHz Detection

1Electrical Engineering Department, King Saud University, Riyadh 11421, Saudi Arabia
2Prince Sultan Advanced Technologies Research Institute (PSATRI), King Saud University, Riyadh 11421, Saudi Arabia
3Electrical and Computer Engineering Department, Concordia University, Montreal, QC, Canada H3G 1M8
4KACST Technology Innovation Center in RFTONICS, King Saud University, Riyadh 11421, Saudi Arabia

Received 22 October 2013; Revised 13 February 2014; Accepted 13 February 2014; Published 17 March 2014

Academic Editor: Ahmed A. Kishk

Copyright © 2014 M. Kamran Saleem et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A novel antenna-coupled sensor configuration for millimeter wave detection is presented. The antenna is based on two cylindrical dielectric resonators (CDRs) excited by rectangular slots placed below the CDRs. The mode resonating at 94 GHz is generated within the CDRs and a 3 GHz impedance bandwidth is achieved at center frequency of 94 GHz. The simulated antenna gain is 7.8 dB, with a radiation efficiency of about 40%.