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Session Page P Plenary Session
Coupling in Planar Antennas
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adaptive array admittance algorithm amplitude analysis angle AP-S aperture bandwidth beamformer calculated cavity characteristics circular coefficient constant current distribution cylinder Department of Electrical desired signal dielectric dielectric constant dipole electric field electromagnetic excitation experimental factor feed ﬁeld ﬁgure ﬁnite finite element formulation Fourier free space frequency geometry grating lobe Green's function ground plane hybrid IEEE IEEE Trans incident input impedance integral equation iteration layer linear magnetic current main beam matrix measured microstrip antenna Microwave mode mutual coupling numerical results obtained parameters patch antenna phased array planar plane wave plasma polarization problem propagation radiation pattern radius ratio rectangular waveguide reflection coefficient reflector reflector antennas region resonant scan scattering shown in Figure sidelobe sidelobe level slot solution solved steering subreflector substrate surface wave synthesis technique theoretical Theory transform University URSI Abs values wavelength wavenumber weight vector width