Abstract
In this letter, a wideband compact circularly polarized (CP) dielectric resonator antenna (DRA) is proposed. This antenna consists of two rectangular dielectric layers that are stacked with a rotation angle φ relative to its adjacent bottom layer. The antenna is excited by an aperture coupled through a slot cutting on the ground plane. The rotated-stair configuration of DRA contributes dual broadside CP radiating modes and results in a noticeable enhancement in the axial ratio (AR) bandwidth. The proposed antenna achieves 31% impedance bandwidth and 18.2% AR bandwidth. The average gain within the AR bandwidth is 4.5 dBi with less than 0.5-dB variation. Moreover, the proposed dielectric resonator antenna has a low-profile structure. This work demonstrates a CP bandwidth broadening technique for the DRA. The potential applications of the antenna are 5G Wi-Fi and satellite communication systems.
| Original language | English |
|---|---|
| Pages (from-to) | 787-790 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 14 |
| Online published | 23 Dec 2014 |
| DOIs | |
| Publication status | Published - 2015 |
Research Keywords
- Aperture coupled
- circular polarization (CP)
- dielectric resonator antenna
- rotated-stair DRA
- wide bandwidth
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Dive into the research topics of 'A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator'. Together they form a unique fingerprint.Projects
- 1 Finished
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ECS: Emerging Transmitting Antenna for Implant Communications
WONG, H. (Principal Investigator / Project Coordinator)
1/01/14 → 22/12/17
Project: Research
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