Ultrawideband composite cavity-backed folded sectorial bowtie antenna with stable pattern and high gain
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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Pages (from-to) | 2478-2483 |
Journal / Publication | IEEE Transactions on Antennas and Propagation |
Volume | 57 |
Issue number | 8 |
Publication status | Published - 2009 |
Link(s)
Abstract
A composite cavity-backed folded sectorial bowtie antenna (FSBA) is proposed and investigated in this paper, which is differentially fed by an SMA connector through a balun, i.e. a transition from a microstrip line to a parallel stripline. The composite cavity as a general case, consisting of a conical part and a cylindrical rim, can be tuned freely from a cylindrical to a cup-shaped one. Parametric studies are performed to optimize the antenna performance. Experimental results reveal that it can achieve an impedance bandwidth of 143% for ≤ 2, a broadside gain of 8-15.3 dBi, and stable radiation pattern over the whole operating band. The total electrical dimensions are 0.66λm in diameter and 0.16λm in height, where λm is the free-space wavelength at lower edge of the operating frequency band. The problem about the distorted patterns in the upper frequency band for wideband cavity-backed antennas is solved in our work. © 2009 IEEE.
Research Area(s)
- Bowtie antennas, Cavity-backed antennas, Unidirectional patterns, UWB antennas
Citation Format(s)
Ultrawideband composite cavity-backed folded sectorial bowtie antenna with stable pattern and high gain. / Qu, Shi-Wei; Chan, Chi-Hou; Xue, Quan.
In: IEEE Transactions on Antennas and Propagation, Vol. 57, No. 8, 2009, p. 2478-2483.
In: IEEE Transactions on Antennas and Propagation, Vol. 57, No. 8, 2009, p. 2478-2483.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review