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Design of a wideband microstrip bowtie patch antenna

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3 Author(s)
Loi, K.W. ; Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore ; Uysal, S. ; Leong, M.S.

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%

Published in:

Microwaves, Antennas and Propagation, IEE Proceedings  (Volume:145 ,  Issue: 2 )