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Asymptotic transition region theory for edge diffraction. II. Calculation of diffraction losses in multireflector antennas

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1 Author(s)
P. -S. Kildal ; ELAB-RUNIT, Norwegian Inst. of Technol., Trondheim, Norway

For pt.I see ibid., vol.38, no.9, p.1350-8 (1990). Asymptotic formulas that can be used to calculate diffraction losses in a multireflector antenna without having to integrate rapidly varying fields over the reflector surfaces and the aperture are presented. Two kinds of losses caused by edge diffraction are considered: the reduction in antenna efficiency and the increase in spillover. The asymptotic formulas are obtained from the standard transition region field introduced in part I and are expressed in terms at the Δρ defined there

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IEEE Transactions on Antennas and Propagation  (Volume:38 ,  Issue: 9 )