Title :
Multifunctional antennas with low RCS
Author :
Hung-Yu Yang ; Castaneda, J.A. ; Alexopoulos, N.G.
Author_Institution :
Phraxos Res. & Dev. Inc., Santa Monica, CA, USA
Abstract :
A study of the properties of printed dipole antennas with a ferrite cover layer with a rigorous analysis is presented. The analysis is based on a full-wave moment-method solution. An extension of the matrix-exponent method described by J.L. Tsalamengas and N.K. Uzunoglu (1985) is used to deal with the two-layer structure. It is found that a microstrip antenna with a ferrite cover layer has the capability of beam scanning and gain enhancement. It is also found that this phenomenon is more profound in the H-plane than in the E-plane. An example of the H-plane pattern is shown with two different biasing conditions. It is seen that the strength of the biased field may control the beam angle. Also, the gain may be more than 10 dB.<>
Keywords :
antenna radiation patterns; dipole antennas; microstrip antennas; numerical analysis; radar cross-sections; H-plane pattern; beam scanning; ferrite cover layer; full-wave moment-method solution; gain enhancement; low RCS; matrix-exponent method; microstrip antenna; multifunctional antennas; printed dipole antennas; two-layer structure; Antenna theory; Dipole antennas; Ferrites; Magnetic materials; Microstrip antennas; Principal component analysis; Printed circuits; Research and development; Resonance; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221416
