Abstract :
The equivalent circuit of a receiving antenna consists of a current generator and two admittances: one for the load, and one for the antenna. The short-circuit current, Ig - receiving property - may be expressed in terms of the transmitting properties of the antenna. The article gives a derivation for the value of Ig. It is assumed, to simplify matters, that the antenna is located in free space, and that its feeding line is a monomode waveguide (a coaxial cable, for example). The extension to multimode lines, or to spatial regions containing linear media (possibly anisotropic, and/or non-reciprocal) is fairly straightforward
Keywords :
antenna feeds; electric admittance; electric current; equivalent circuits; receiving antennas; admittances; antenna feeding line; coaxial cable; current generator; equivalent circuit; free space antenna; monomode waveguide; receiving antenna; receiving property; short-circuit current; transmitting properties; Antenna feeds; Antennas and propagation; Blades; Electromagnetic waveguides; Engineering education; Equivalent circuits; Integral equations; Loaded antennas; Receiving antennas; Waveguide components;
