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Key terms: antenna feed reflector math types radio focus horn beam main gain antena spherical frequency telescope satellite located usually parabolic antenna gregorian allows parabola radar plane cassegrain light arecibo meters wavelength feed element dipole lambda isotropic maximum diameter aperture circular focal point feed antenna receiving typically antenna types horizontal transmitting dish antenna parabolic reflector electromagnetic radio telescope spherical reflector Search external links cited by footnotes on Wikipedia page Parabolic antenna: |
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