Title :
Slot-Coupled Millimeter-Wave Dielectric Resonator Antenna for High-Efficiency Monolithic Integration
Author :
Ohlsson, Lars ; Bryllert, Tomas ; Gustafson, Carl ; Sjoberg, Daniel ; Egard, Mikael ; Arlelid, Mats ; Wernersson, Lars-Erik
Author_Institution :
Dept. of Electr. & Inf. Technol., Lund Univ., Lund, Sweden
fDate :
4/1/2013 12:00:00 AM
Abstract :
A readily mass-producible, flip-chip assembled, and slot-coupled III-V compound semiconductor dielectric resonator antenna operating in the millimeter-wave spectrum has been fabricated and characterized. The antenna has a 6.1% relative bandwidth, deduced from its 10 dB return loss over 58.8-62.5 GHz, located around the resonance at 60.5 GHz. Gating in the delay-domain alleviated the analysis of the complex response from the measured structure. The radiation efficiency is better than -0.1 dB in simulations fed from the on-chip coupling-structure, but reduced by 3.7 dB insertion loss through the measurement assembly feed. Antenna gain measurements show distortion in relation to the simulated pattern, which has a maximum gain of 6 dBi, mainly caused by interference from the electrically large connector used in the assembly. Mode degeneration in the utilized quadratic-footprint resonator was not seen to influence the performance of the antenna. The antenna is intended for on-chip integration and the fabrication technology allows scaling of the operation frequency over the complete millimeter-wave spectrum.
Keywords :
III-V semiconductors; antenna feeds; antenna radiation patterns; dielectric resonator antennas; flip-chip devices; millimetre wave antennas; slot antennas; antenna gain measurement; complex response; delay-domain; electrically-large connector; fabrication technology; high-efficiency monolithic integration; insertion loss; loss 10 dB; loss 3.7 dB; mass-producible flip-chip assembled DRA; measurement assembly feed; millimeter-wave spectrum; mode degeneration; on-chip coupling-structure; on-chip integration; operation frequency; quadratic-footprint resonator; radiation efficiency; relative bandwidth; return loss; slot-coupled III-V compound semiconductor DRA; slot-coupled millimeter-wave dielectric resonator antenna; Antenna measurements; Assembly; Coplanar waveguides; Dielectric resonator antennas; Dielectrics; Feeds; Transmission line measurements; Antenna efficiency; dielectric resonator antennas (DRAs); millimeter-wave antennas; millimeter-wave communication;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2237005