Publications [#331503] of Qing H. Liu

Papers Published

1. Li, J; Li, L; Zhang, A; Liu, J; Liu, QH, Wideband two bowtie dipole array antenna integrated with a tapered balun, Isape 2016 Proceedings of the 11th International Symposium on Antennas, Propagation and Em Theory (January, 2017), pp. 16-18, IEEE, ISBN 9781509047420 [doi]
   (last updated on 2023/08/08)

   Abstract:
   This paper presents a wideband antenna consisting of two series-fed fan-shaped bowtie dipole antenna elements and an integrated tapered balun for through-the-wall imaging radar (TWIR) applications. The two fan-shaped bowtie dipole antenna elements with different radii and same flare angle are connected using a coplanar stripline and backed by a ground reflector. The balun realized by a tapered microstrip line and a slot line is used to feed the antenna. The proposed antenna has been numerically investigated, which shows that a 10-dB impedance bandwidth of 85.9% ranging from 1.38 to 3.46 GHz is attained. The overall size of the proposed antenna is 1.2λ × 0.8λ. The radiation patterns are roughly stable over the operating bandwidth with nearly endfire characteristic.