口徑天線在遠(yuǎn)場區(qū)的沖激響應(yīng)的含義和適用范圍兼評也談口徑天線輻射場的瞬態(tài)特性
THE IMPLICATION AND THE APPLICABLE REGION OF THE IMPULSE RESPONSE OF APERTURE ANTENNAS IN THE FAR-FIELD REGIONCONCURRENT COMMENT ON SOME POINTS ON IMPULSE RESPONSE OF APERTURE ANTENNA
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摘要: 本文闡明了在使用口徑天線在遠(yuǎn)場區(qū)的沖激響應(yīng)的概念時,遠(yuǎn)場區(qū)是對激勵天線的實際信號而言,并非對為求沖激響應(yīng)而施加在天線上的函數(shù)而言;遠(yuǎn)場區(qū)的沖激響應(yīng)在距離上的適用范圍決定于激勵信號的頻率范圍。
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關(guān)鍵詞:
Abstract: In this paper, it is clarified that as the term, the impulse response of aperture antennas in the f ar-field region, is used, the far-field region is referred to the actual signal exciting an antenna, not to the Dirac delta function exerted on an antenna for deducing the impulse respose, and that the applicable distance range of the impulse response in the far-field region is determined by the frequency range of the exciting signal. -
胡漢南,電子科學(xué)學(xué)刊,6(1984), 235.[2]胡漢南,電子科學(xué)學(xué)刊,T(1985), 28.[3]胡漢南,電子科學(xué)學(xué)刊,7(1985), 348.[4]沈浩明,電子科學(xué)學(xué)刊,8(1986), 293.[5]M. I. Skolnik, Radar Handbook, McGraw-Hill Co., New York, 1970, p. 9-7 Eq. (7) and p. 13-17-p. 13-20.[6]S.Ramo and J. R.Whinnery著,張世璘等譯,近代無線電中的場與波,人民郵電出版社,1958, p. 498.[7]B. R. Mayo, Proc.IRE, 49 (1961), 817.[8]R. R. Kinsey and A.L.Horvath, Transient Response of Centet-Series-Fed Array, Phased Array Antennas, Proceedings of 1970 Phased Array Antenna Symposium, pp. 261-271. -
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