Title :
A novel directive Ultra Wideband Vertical Quarter Elliptical (VQE) Sheet Antenna design
Author :
Modi, A.Y. ; Pisharody, Nilima ; Mehta, Jigar
Author_Institution :
Dept. of Electron. & Commun. Eng., Nirma Univ., Ahmedabad, India
Abstract :
In this paper, a novel design for a directive ultra wide band antenna has been proposed. It has been aptly named `Vertical Quarter Elliptical (VQE) Sheet Antenna´ because of its shape. Its simulated return loss, VSWR, input impedance and radiation pattern are discussed. This antenna has a voltage standing wave ratio that is less than 2 (VSWR<; 2) and the return loss (S11) is less than -10 dB along the operational bandwidth of 2.4 GHz to 12.8 GHz. This means an operational bandwidth of about 137%. This tremendous increase is also brought about by an asymmetry in the feed position, the trade off being a slightly degraded radiation pattern. The radiation pattern of the antenna is of the type `end fire´ which is made directional using a reflector. The simulated radiation pattern after adding a reflector has also been shown.
Keywords :
UHF antennas; antenna radiation patterns; directive antennas; losses; microwave antennas; reflector antenna feeds; ultra wideband antennas; VQE; VSWR; antenna feed; antenna radiation pattern; bandwidth 2.4 GHz to 12.8 GHz; directional antenna; directive ultra wideband vertical quarter elliptical sheet antenna design; input impedance; reflector antenna; return loss simulation; voltage standing wave ratio; Antenna measurements; Antenna radiation patterns; Bandwidth; Directive antennas; Impedance; Ultra wideband antennas; Return loss (S11); Ultra wideband (UWB); Vertical Quarter Elliptical (VQE) sheet antenna; Voltage standing wave ratio (VSWR);
Conference_Titel :
Wireless and Optical Communications Networks (WOCN), 2013 Tenth International Conference on
Conference_Location :
Bhopal
Print_ISBN :
978-1-4673-5997-9
DOI :
10.1109/WOCN.2013.6616252
