Radiating Flare Design of Tapered Slot Loaded Vivaldi Antenna Using Fourier Series Approach
S. Santhosh Kumar1, Anu R. G2

1Dr. S. Santhosh Kumar, Assoc. Prof., Department of Electronics and Communication, Government Engineering College Idukki (Kerala), India.
2Anu R. G, Asst. Prof., Department of Electronics and Communication, Mar Baselios College of Engineering and Technology, Thiruvananthapuram (Kerala), India.

Manuscript received on 15 February 2016 | Revised Manuscript received on 25 February 2016 | Manuscript Published on 28 February 2016 | PP: 39-43 | Volume-5 Issue-3, February 2016 | Retrieval Number: C4404025316/16©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Federal communication commission has allocated a band from 3.1 GHz to 10.6 GHz for ultra wide band (UWB) applications. An antenna designed for UWB applications should be capable of offering a higher bandwidth, with minimum distortion of signals. One such antenna that satisfies this criterion is the Vivaldi antenna. The gain offered by a conventional exponentially tapered Vivaldi prototype is less, particularly at a lower giga hertz of frequencies. As the gain is dependent on the geometry of the radiating flare, an improvement in the gain is achieved by removing the restriction on the geometry of the flare. An antenna designed using Fourier series takes an optimized shape, such that the condition of maximum gain and minimum return loss is achieved corresponding to the design frequency. Antenna performance obtained from the simulation result and hardware prototype measurements shows a good agreement thereby verifying the design concept.
Keywords: Ultra Wide Band, Vivaldi Antenna, Fourier Series, Gain, Radiation Flare.

Scope of the Article: Smart Antenna