Radiation and scattering characteristics of microstrip antennas onnormally biased ferrite substrates |
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| Authors: | Pozar D.M. |
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| Affiliation: | Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA; |
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| Abstract: | Radiation and scattering characteristics of microstrip antennas and arrays printed on ferrite substrates with a normal magnetic bias field are described. The extra degree of freedom offered by the biased ferrite can be used to obtain a number of novel characteristics, including switchable and tunable circularly polarized radiation from a microstrip antenna having a single feed point, dynamic wide-angle impedance matching for phased arrays of microstrip antennas, and a switchable radar cross section reduction technique for microstrip antennas. Results are obtained from full-wave moment method solutions for single microstrip antennas and infinite arrays of microstrip antennas. A cavity model solution for a circular patch antenna on a biased ferrite substrate is also presented, to aid in understanding the operation of these antennas |
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