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An Improved Design of Planar Elliptical Dipole Antenna for UWB Applications

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4 Author(s)
Nazli, H. ; Nat. Res. Inst. of Electron. & Cryptology, Sci. & Technol. Res. Council of Turkey, Gebze, Turkey ; Bicak, E. ; Turetken, B. ; Sezgin, M.

In this letter, an enhanced planar elliptical dipole antenna design for ultrawideband (UWB) communication and impulse radar systems is presented. The printed-circuit-elliptical (PCE) antenna has been investigated to be an effective radiator for UWB applications. To enhance gain and return loss bandwidth of the antenna, elliptical slots are used on the dipole arms. The gain performance of the antenna has been increased by means of elliptical slots in the frequency range from 2.7 to 11 GHz. The standing wave ratio is less than 2 (SWR < 2) along 94.4% of operation bandwidth from 1.1 to 11 GHz. The radiation pattern in E- and H-plane for certain frequencies, the return loss, and the gain performance are presented with the experimental and simulation results. Moreover, the time domain analysis of the antenna is presented. The antenna introduces low-level ringing and pulse distortion. Consequently, the antenna is very useful for impulse and UWB communication systems.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:9 )