Sensor and Simulation Notes Note 357 Self-reciprocal Apertures
نویسندگان
چکیده
We define here a new symmetry operator called reciprocation. Apertures that remain unchanged afler reciprocation are called self-reciprocal, and have a number of unique properties. When excited suddenly by a voltage, a self-reciprocal aperture becomes an antenna. This antenna is an approximation to a TEM horn, to a lens IRA (TEM feed + lens), or to a reflector IRA (TEM feed + reflector). Because of the unique properties of self-reciprocal apertures, these antenna configurations have radiation characteristics that are of a particularly simple form. The simple form for the radiation from self-reciprocal apertures greatly simplifies the design rind analysis of this class of antenna. *
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