Communications: radio wave antennas – Antennas – High frequency type loops
Patent
1983-01-26
1985-03-19
Lieberman, Eli
Communications: radio wave antennas
Antennas
High frequency type loops
343842, 343846, H01Q 1104
Patent
active
045062676
ABSTRACT:
An antenna is disclosed that is especially useful for radiating and receiving non-sinusoidal electromagnetic waves. The antenna is an efficient and distortion-free radiator of electromagnetic pulses that do not use a sinusoidal carrier. The antenna's size is independent of frequency and the antenna, therefore, can be of small size relative to the wavelength of the radiated electromagnetic waves. When used for reception of electromagnetic wave energy, the antenna performs with low distortion. The basic concept underlying the invention is the modification of the Hertzian electric dipole into an antenna structure that can carry large currents without requiring a large driving voltage. Antennas for the transmission or reception of sinusoidal waves achieve that goal by employing resonant structures. The invention achieves the same result by changing the Hertzian electric dipole into a loop that forms a Hertzian magnetic dipole and preventing the undesirable magnetic dipole radiation by shields of conducting and absorbing materials.
REFERENCES:
patent: 2365207 (1944-12-01), Moles
patent: 2419577 (1947-04-01), Libby
patent: 3147439 (1964-09-01), Eakin
patent: 3478366 (1969-11-01), Ricardi et al.
Geophysical Survey Systems, Inc.
Lieberman Eli
Orenbuch Louis
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