A low-profile wideband planar antenna
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 6529140 |
Pages (from-to) | 4411-4418 |
Journal / Publication | IEEE Transactions on Antennas and Propagation |
Volume | 61 |
Issue number | 9 |
Publication status | Published - 2013 |
Link(s)
Abstract
A wideband planar antenna with a low profile of 0.095λ0, where λ0 is the wavelength referring to the center frequency of the operating band, is proposed. Using the concept of complementary antenna, two shorted quarter-wave microstrip patch antennas, operating as magnetic dipoles, and two planar electric dipoles are connected together and excited simultaneously by a coaxial-to-microstrip impedance transformer. For further size reduction and back radiation suppression, a U-shaped reflector is employed. Experimentally, the proposed antenna exhibited an impedance bandwidth of 51.5% with SWR ≤ 1.5 from 1.96 to 3.32 GHz, a boresight gain of 6.9 ± 1.1 dBi and a unidirectional radiation pattern with low cross-polarization and back radiation levels. Moreover, the dc grounded structure fulfills the requirement for lightning protection in outdoor applications. © 1963-2012 IEEE.
Research Area(s)
- Low-profile antenna, Unidirectional patterns, Wideband antenna
Citation Format(s)
A low-profile wideband planar antenna. / Li, Mingjian; Luk, Kwai-Man.
In: IEEE Transactions on Antennas and Propagation, Vol. 61, No. 9, 6529140, 2013, p. 4411-4418.
In: IEEE Transactions on Antennas and Propagation, Vol. 61, No. 9, 6529140, 2013, p. 4411-4418.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review