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Printed Binomial-Curved Slot Antennas for Various Wideband Applications

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6 Author(s)
Xian-Ling Liang ; Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China ; Denidni, T.A. ; Li-Na Zhang ; Rong-Hong Jin
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This paper presents a new design of wide slot antenna for various wideband applications. The proposed printed antenna consists of a slot and a turning stub, both formed by a binomial curve function; thus, various bandwidths (BWs) can be obtained based on the structure with different binomial curves. Some key parameters affecting the antenna performance have been analyzed and discussed in detail as an antenna design guideline. To validate the theoretical design, six prototypes of various binomial-curved slot antennas were designed, fabricated, and measured. Good agreement between the simulated results and the measured ones is observed. The results demonstrate that the proposed type of antenna can obtain a BW range from 9.8% to 99.7% for VSWR ≤ 2 by selecting various binomial-curved slots, which may provide a convenience for various wideband antenna designs. Moreover, the proposed type of antenna owns a simple structure and a stable gain of about 3-5.5 dBi, which is very suitable for wideband wireless system applications.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:59 ,  Issue: 4 )