Title :
Characteristics of printed antennas and arrays covered with a layer of printed strip-grating for suppression of cross-polarization
Author :
Mohanty, A. ; Das, N.K.
Author_Institution :
Weber Res. Inst., Polytech. Univ., Farmingdale, NY, USA
fDate :
June 28 1993-July 2 1993
Abstract :
A method of analysis for printed antennas and infinite arrays which rigorously includes the effects of the strip grating is outlined. The radiation characteristics of a printed dipole antenna with and without a grating layer directly placed on the antenna are presented, showing significant improvement of the cross-polarization level. The polarization characteristics when the grating is placed electrically far off the antenna surface are also presented, also showing improvements in the cross-polarization level. The normalized scan characteristics of an infinite phased array with and without a grating layer placed immediately on top of the antenna are also shown.<>
Keywords :
antenna phased arrays; antenna radiation patterns; diffraction gratings; dipole antennas; electromagnetic wave polarisation; method of moments; microstrip antennas; spectral-domain analysis; dipole antenna; infinite phased array; normalized scan characteristics; polarization characteristics; printed antennas; radiation characteristics; strip grating; suppression of cross-polarization; Antenna arrays; Antenna radiation patterns; Current distribution; Dielectric substrates; Dipole antennas; Gratings; Impedance; Phased arrays; Polarization; Radar antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385266
