Title :
A low cross-polarized antipodal Vivaldi antenna array for wideband operation
Author :
Kim, Sang-Gyu ; Chang, Kai
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
An antipodal Vivaldi antenna gives good performance over a wide bandwidth, but the cross-polarization level is unfortunately high due to the slot flares on different layers. As a simple technique to reduce the cross-polarization level in the array, the antipodal antenna and its mirror image are placed alternately in the H-plane. The cross-polarization level is reduced more than 20 dB at broadside.
Keywords :
antenna radiation patterns; broadband antennas; electromagnetic wave polarisation; slot antenna arrays; H-plane; antipodal Vivaldi antenna array; broadside antenna; cross-polarization level reduction; cross-polarized antenna array; slot flares; wideband operation; Antenna arrays; Antenna measurements; Bandwidth; Broadband antennas; Dielectric substrates; Microstrip antenna arrays; Microstrip antennas; Polarization; Slot antennas; Vivaldi antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331823
