Title :
The RCS of a microstrip antenna on an in-plane biased ferrite substrate
Author :
Lee, Byungje ; Harackiewicz, Frances J.
Author_Institution :
Dept. of Electr. Eng., Southern Illinois Univ., Carbondale, IL, USA
fDate :
2/1/1996 12:00:00 AM
Abstract :
The numerical solutions for the RCS of a microstrip patch on an in-plane biased ferrite substrate are presented. The peaks in the RCS can be moved with respect to frequency by changing the magnetic bias field. We consider a monostatic RCS with various incident angles and examine all four elements of the cross-section matrix. For the case of an unmagnetized ferrite substrate the cross-polarized RCS components are zero. When the ferrite is magnetized, the cross-polarized RCS components become as significant as do the copolarized RCS components. It is also shown that a loaded patch has the effect of significantly reducing RCS at resonances. The analysis used is based on a full-wave moment method with the exact spectral-domain Green´s function
Keywords :
Green´s function methods; electromagnetic wave polarisation; ferrite devices; method of moments; microstrip antennas; radar cross-sections; spectral-domain analysis; RCS; copolarized RCS components; cross-polarized RCS components; cross-section matrix; exact spectral-domain Green´s function; full-wave moment method; in-plane biased ferrite substrate; incident angles; loaded patch; magnetic bias field; microstrip antenna; microstrip patch; monostatic RCS; numerical solutions; resonances; unmagnetized ferrite substrate; Ferrites; Frequency; Helium; Microstrip antennas; Microstrip components; Moment methods; Polarization; Printed circuits; Resonance; Transmission line matrix methods;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
