Antennas and Propagation: 1981 International Symposium Digest : Bonaventure Hotel, Los Angeles, California, Volume 2 |
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Page 496
... STRUT SHAPE Naoto Matsunaka Kokusai Denshin Denwa Co. , LTD ( KDD ) Tokyo , Japan 1 . Introduction Shinichi Betsudan ... strut exceeds that shown in the above reference diagram in the designated angular region on account of the strut ...
... STRUT SHAPE Naoto Matsunaka Kokusai Denshin Denwa Co. , LTD ( KDD ) Tokyo , Japan 1 . Introduction Shinichi Betsudan ... strut exceeds that shown in the above reference diagram in the designated angular region on account of the strut ...
Page 497
... strut direction , respectively . The calculated diffraction level due to various strut shapes are shown in Figure 3 . The diffracted wave can be directed into the desired direction by changing the vertical angle ( 24 % ) of the strut ...
... strut direction , respectively . The calculated diffraction level due to various strut shapes are shown in Figure 3 . The diffracted wave can be directed into the desired direction by changing the vertical angle ( 24 % ) of the strut ...
Page 504
... struts . The angle range of the maximum radiation of a strut is , therefore , located in a cone having a tip angle of 2 a where a is the angle between the strut and the main beam of the antenna [ 1,2 ] . Fig . 1 shows the radiation ...
... struts . The angle range of the maximum radiation of a strut is , therefore , located in a cone having a tip angle of 2 a where a is the angle between the strut and the main beam of the antenna [ 1,2 ] . Fig . 1 shows the radiation ...
Contents
PROPAGATION | 371 |
Transequatorial Propagation on VHF and | 379 |
Scattering of Electromagnetic Plane Wave | 387 |
8 other sections not shown
Common terms and phrases
amplitude analysis angle antenna pattern antenna system aperture application approximately array antenna attenuation axial ratio azimuthal bandwidth batwing antenna beam calculated Cassegrain antenna characteristics circuits circular components computed cross-polarized current distribution cylinder dielectric diffraction dipole direction effect electric field electromagnetic element equivalent excitation feed finite frequency function geometry ground plane helical Helical Antennas helix horn IEEE IEEE Trans incident input impedance integral equation length linear lossy magnetic matrix measured method mode monopole antenna mutual coupling numerical obtained paraboloidal parameters phased array plane wave polarization problem propagation radiation pattern radome rectenna References reflection coefficient reflector antenna region resonance scan scattering shown in Figure shows sidelobe sidelobe level signal slot solution space spherical spiral antenna structure strut subreflector surface wave symmetric technique theory tion transmission trap twin loop antenna Unimoment unipole-notch V-loop values vector VSWR waveguide wavelength wavenumber wire