[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: SSTC As a transmitter.



Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jimlux-at-earthlink-dot-net>
> 
> Well, gosh, the effective aperture of a half wavelength wire is
> substantially larger than its geometric physical aperture, for just the
> reasons outlined in the quote from the patent.
> For what it's worth: Ae = .119*lambda^2 for a "short dipole" (Kraus,
> Antennas,2nd ed, 2-20, page 44)
> and 0.13*lambda^2 for a halfwave dipole.

	Adding to the subject, the effective aperture of any "isotropic"
radiator approaches lambda^2/4pi in the limit.  Doesn't mean it's
necessarily a useful device, however.  Of course, the small dipole isn't
an isotropic radiator so it has a larger effective area.

Ed