A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator

Kai Xu Wang; Hang Wong

doi:10.1109/LAWP.2014.2385475

A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator

Kai Xu Wang
, Hang Wong

City University of Hong Kong

Research output: Contribution to journal › Article › peer-review

123 Scopus citations

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 ℓ 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
Article number	6995972
Pages (from-to)	787-790
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	14
DOIs	https://doi.org/10.1109/LAWP.2014.2385475
State	Published - 2015
Externally published	Yes

Keywords

Aperture coupled
circular polarization (CP)
dielectric resonator antenna
rotated-stair DRA
wide bandwidth

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10.1109/LAWP.2014.2385475

Cite this

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title = "A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator",

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 ℓ 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.",

keywords = "Aperture coupled, circular polarization (CP), dielectric resonator antenna, rotated-stair DRA, wide bandwidth",

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doi = "10.1109/LAWP.2014.2385475",

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volume = "14",

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journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

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T1 - A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator

AU - Wang, Kai Xu

AU - Wong, Hang

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Y1 - 2015

N2 - 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 ℓ 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.

AB - 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 ℓ 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.

KW - Aperture coupled

KW - circular polarization (CP)

KW - dielectric resonator antenna

KW - rotated-stair DRA

KW - wide bandwidth

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DO - 10.1109/LAWP.2014.2385475

M3 - 文章

AN - SCOPUS:84961320007

SN - 1536-1225

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

M1 - 6995972

ER -

A Circularly Polarized Antenna by Using Rotated-Stair Dielectric Resonator

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Keywords

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