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The conventional requirements on the antenna are reviewed.The importance of the phase patternof the antenna in modern science and technology is pointed out.Under such a background,the prob-lems concerning the phase characteristic of the radiation pattern and the current distribution of theantenna aperture are attempted to be systematized on the basis of previous works,namely,the phasereference point,the transformation of the radiation patterns corresponding to different phase referencepoints of an antenna,the null level and the phase difference between the adjacent lobes,and the resolu-tion of current distribution of a linear source,are summarized and discussed.The general conditionof the equiphase lobe and the condition of the symmetric lobe of a linear source are proposed andproved theoretically.Some theorems are proposed by induction from the above and the overalldiscussion is termed the phase theory of radiation pattern.
The conventional requirements on the antennas are reviewed. Importance of the phase pattern of the antenna in modern science and technology is pointed out. Under such a background, the prob-lems concerning the phase characteristic of the radiation pattern and the current distribution of the antenna. are attempted to be systematized on the basis of previous works, namely, the phase reference point, the transformation of the radiation patterns corresponding to different phase reference points of an antenna, the null level and the phase difference between the adjacent lobes, and the resolu tion of current distribution of a linear source, are summarized and discussed.The general conditionof the equiphase lobe and the condition of the symmetric lobe of a linear source are proposed andproved theoretically.Some theorems are proposed by induction from the above and the overalldiscussion is termed the phase theory of radiation pattern.