The receiving antenna
作者:
Reuben Benumof,
期刊:
American Journal of Physics
(AIP Available online 1984)
卷期:
Volume 52,
issue 6
页码: 535-538
ISSN:0002-9505
年代: 1984
DOI:10.1119/1.13614
出版商: American Association of Physics Teachers
关键词: antennas;television;electric potential;electronic circuits;electromagnetic fields;electric dipoles
数据来源: AIP
摘要:
The basic theory of a receiving antenna is presented in sufficient detail to permit the calculation of the voltage across the load of an optimally designed TV antenna circuit. The rms load voltage is given byVL=λH(30RrD)1/2, where λ is the wavelength of the incident radiation,His the rms value of the magnetic field intensity,Rris the radiation resistance of the antenna, andDis the directive gain. The result obtained from this formula for a typical monopole TV antenna is compared with that obtained from a simple, intuitive approximation. The reasons for the difference in the results are discussed.
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