Title :
Design of a wideband microstrip bowtie patch antenna
Author :
Loi, K.W. ; Uysal, S. ; Leong, M.S.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
fDate :
4/1/1998 12:00:00 AM
Abstract :
A novel methodology is presented for the design of a wideband microstrip bowtie patch antenna of finite length placed on a dielectric substrate. The method presented is fast, computationally undemanding and reasonably accurate. This methodology is motivated by the observed array effect of the two trapezoidal halves on a single bowtie antenna. A single trapezoidal side is first designed and two such identical sides are then joined together at the apex and matched to a coaxial feed via sections of microstrip lines at the second-order resonance frequency. Experimental measurements for a bowtie designed in the X-band are shown to agree well with the simulated predictions. The bandwidth obtained was a significant 10.6%
Keywords :
antenna feeds; antenna radiation patterns; antenna testing; microstrip antennas; microstrip lines; microwave antennas; X-band; antenna design; array effect; bandwidth; coaxial feed; dielectric substrate; experimental measurements; finite length; microstrip lines; radiation patterns; second-order resonance frequency; simulated predictions; trapezoidal halves; wideband microstrip bowtie patch antenna;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19981632
