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J. Microw. Optoelectron. Electromagn. Appl. vol.10 número1

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Academic year: 2018

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Fig. 1.   The geometry of a backfire antenna.
Fig. 2. Phase velocity delay factor  versus backfire antenna length in wavelengths Ln = L/λ 0 : (a) different models of radiation            mechanism: solid line: Hristov and Kirov model – eq
Fig. 3.   Some possible configurations of the big reflector: (a) disk reflector R 2 , (b) rimmed disk reflector R 2R , (c) rimmed  reflector with step correction R 2S , and (d) rimmed reflector  with conical correction R 2C
Fig. 4.   A backfire antenna fed by a dipole located near            the big reflector R 2R  (Antenna A1)
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