Design of a Wideband Circularly Polarized Millimeter-Wave Antenna With an Extended Hemispherical Lens
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 |
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Pages (from-to) | 4303-4308 |
Journal / Publication | IEEE Transactions on Antennas and Propagation |
Volume | 66 |
Issue number | 8 |
Online published | 28 May 2018 |
Publication status | Published - Aug 2018 |
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Abstract
This communication presents a design of a wideband and
high-gain circularly polarized (CP) extended hemispherical lens antenna
for millimeter-wave applications. The proposed lens integrated with
a dielectric polarizer can transfer an incident wave from linear to
CP over the wide operating bandwidth. This design is different from
the cascaded design of a polarizer with an extended hemispherical
dielectric lens. In this design, only one device is required to achieve dual
functions. Therefore, size reduction and loss reduction can be obtained.
Besides, thanks to the low-cost 3-D printed technology, the polarizer
can be fabricated in an accurate and convenient way. A theoretical
analysis is carried out. Equations are derived based on refraction law.
For demonstration, the proposed CP lens antenna is implemented and
measured. This antenna achieves a wide impedance bandwidth of 27%
from 51 to 67 GHz for the reflection coefficient <−10 dB and a wide
axial ratio (AR) bandwidth of 29% from 50 to 67 GHz for the AR
<3 dB. The gain of the antenna can reach to 21 dBic, which agrees
with our analysis. The ultimate goal of this communication is to develop
a wideband, high-gain, small size and low-cost lens antenna for the
millimeter-wave frequency band.
Research Area(s)
- 3D printing antenna, circular polarization antenna, CP lens antenna, dielectric antenna, millimeter wave antenna, wide bandwidth
Citation Format(s)
Design of a Wideband Circularly Polarized Millimeter-Wave Antenna With an Extended Hemispherical Lens. / Wang, Kai Xu; Wong, Hang.
In: IEEE Transactions on Antennas and Propagation, Vol. 66, No. 8, 08.2018, p. 4303-4308.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review