Wideband Unidirectional Circularly Polarized Antenna with L-shaped Radiator Structure
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 7450617 |
| Pages (from-to) | 12-15 |
| Journal / Publication | IEEE Antennas and Wireless Propagation Letters |
| Volume | 16 |
| Publication status | Published - 11 Apr 2016 |
Link(s)
Abstract
This letter presents a wideband unidirectional circularly polarized (CP) antenna of a simple structure that is suitable for array application. The antenna has twofold bends that form an L-shaped radiator connecting with a probe over a ground plane. Circular polarization is achieved due to traveling wave excitation producing currents with quadrature phase difference on the L-shaped sections. Meanwhile, the ground plane, which is a quarter-wavelength away from the L-shaped radiator, produces a directional radiation pattern. A 2 × 2-element array prototype based on the proposed element was fabricated using two layers of printed circuit board. Measured results of the antenna array exhibit a 3-dB axial-ratio bandwidth of 55% (5.2-9.1 GHz) within its -10-dB impedance bandwidth and a 3-dB right-handed CP gain bandwidth of 49% (5.3-8.8 GHz) with a peak gain of 12.1 dBic.
Research Area(s)
- Broadband antenna, circular polarization (CP), microstrip antenna
Citation Format(s)
Wideband Unidirectional Circularly Polarized Antenna with L-shaped Radiator Structure. / Bisharat, Diaaaldin J.; Liao, Shaowei; Xue, Quan.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 16, 7450617, 11.04.2016, p. 12-15.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
