Effective area of an antenna

Details Effective area of an antenna Effective area of an antenna

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ell....12...98d&link_type=abstract

Electronics Letters, vol. 12, Feb. 19, 1976, p. 98, 99.

Physics

Condensed Matter

Statistical Mechanics

Antenna Design, Area, Directivity, Statistical Mechanics, Electromagnetic Fields, Heisenberg Theory, Polarization Characteristics, Quantum Mechanics, Thermodynamics

Scientific paper

We find the area of an isotropic linearly polarised antenna by statistical thermodynamics. A quantum-mechanical interpretation is given. For a matched antenna operating at reception, the number of photons captured in an electromagnetic wave is divided into two equal parts: one part is furnished to the load and the other part is reradiated. We prove, by the Heisenberg uncertainty principle, that the maximum effective area for any matched antenna is always greater than that of an isotropic antenna.

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