Bandwidth Enhancement for a Millimeter-wave Dielectric Resonator Antenna

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

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Detail(s)

Original languageEnglish
Title of host publication2023 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)
PublisherIEEE
Pages39-41
ISBN (Electronic)979-8-3503-2060-2
ISBN (Print)979-8-3503-2061-9
Publication statusPublished - 2023

Publication series

NameIEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications
ISSN (Print)2835-2378
ISSN (Electronic)2766-287X

Conference

Title12th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC 2023)
Location
PlaceItaly
CityVenice
Period9 - 13 October 2023

Abstract

This work presents a new method for the bandwidth enhancement of the dielectric resonator antenna (DRA) at the millimeter-wave (mmW) band. This work enlarges the coupling aperture under the dielectric radiator to achieve bandwidth enhancement. Conventional aperture-coupled DRAs use a small aperture for excitation, which only consists of the fundamental mode and thus limits the operating bandwidth. The proposed large aperture coupling can excite both fundamental and higher-order modes together inside the DRA, which extends the impedance bandwidth from 6% to 30%. Comparison between using a small aperture and a large aperture for exciting the DRA shows that the large aperture can lower the input impedance of the DRA, and help achieve the wide impedance bandwidth. A 2 × 4 array with the proposed antenna element was simulated. The simulated results show that the proposed DRA array can achieve an impedance bandwidth of 30% from 25 to 34 GHz (for reflection coefficient ≤ -10 dB). Throughout the entire operating bandwidth, stable broadside radiation patterns with low cross-polarization levels under -40 dB can be observed. ©2023 IEEE.

Research Area(s)

  • Dielectric resonator antenna (DRA) array, wideband DRA, bandwidth enhancements

Citation Format(s)

Bandwidth Enhancement for a Millimeter-wave Dielectric Resonator Antenna. / Lo, King Tung; To, Yat Sing; Wong, Hang.
2023 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC). IEEE, 2023. p. 39-41 (IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications).

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review