Title :
Circularly tapered antipodal Vivaldi antenna for array-based ultra-wideband near-field imaging
Author :
Zhuge, Xiaodong ; Yarovoy, Alexander ; Ligthart, Leo P.
Author_Institution :
Int. Res. Centre for Telecommun. & Radar (IRCTR), Delft Univ. of Technol., Delft, Netherlands
fDate :
Sept. 30 2009-Oct. 2 2009
Abstract :
In this paper, the design of a low profile circularly tapered antipodal Vivaldi antenna for array-based UWB nearfield imaging is presented. The antenna with the dimensions of 45times48.5 mm achieves satisfactory impedance matching and radiation performance across the frequency band from 2.7 to 26 GHz. The proposed antenna exhibits consistent UWB characteristics over a wide angle, which is crucial for near-field imaging applications.
Keywords :
impedance matching; microwave imaging; ultra wideband antennas; UWB antenna; array-based ultra-wideband near-field imaging; circularly tapered antipodal Vivaldi antenna; frequency 2.7 GHz to 26 GHz; impedance matching; radiation performance; Antenna arrays; Antenna feeds; Antenna theory; Bandwidth; Dielectric substrates; Microstrip antenna arrays; Slot antennas; Ultra wideband antennas; Ultra wideband technology; Vivaldi antennas;
Conference_Titel :
Radar Conference, 2009. EuRAD 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4747-3
