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Antenna reception theory
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December 2nd 05, 07:17 PM posted to rec.radio.amateur.antenna
Jim Kelley
Posts: n/a
Antenna reception theory
Asimov wrote:
"Richard Harrison" bravely wrote to "All" (01 Dec 05 14:18:33)
--- on the heady topic of " Antenna reception theory"
RH From:
(Richard Harrison)
RH Xref: core-easynews rec.radio.amateur.antenna:220709
RH Roy Lewallen wrote:
RH "You can find the explanation for why this is in any electromagnetic
RH text."
RH I found it in Terman.
[,,,]
RH From the above, it is seen that the electric field is not effective in
RH inducing current in a receiving antenna parallel to a wavefront. All
RH the energy intercepted by the antenna is induced by the magnetic field.
That is outright false. Because I can very easily demonstrate
detecting a static E-field by waving a sensitive probe across it.
An antenna is just a stationary probe with a moving E-field. It is
equivalent.
Consider the direction the E field is moving and which direction any
electrostatically induced current might flow. Then apply the same
criteria to a magnetic field.
A*C*6*X*G
Terman sucks.
A*s*i*m*o*v
... Horse sense is the result of stable thinking.
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