Non-invasive quarter wavelength microwave applicator for hyperth

Details Non-invasive quarter wavelength microwave applicator for hyperth Non-invasive quarter wavelength microwave applicator for hyperth

1988-10-07

1990-06-12

Coven, Edward M.

Surgery

Body protecting or restraining devices for patients or infants

Restrainers and immobilizers

128783, 128401, 128399, 343700MS, A61N 500

Patent

active

049324209

ABSTRACT:
A printed circuit board structure fabricated to define a plurality of quarter wavelength microstrip antennas, each radiating microwave energy in a dipole pattern. The ends of the microstrip antennas are formed overlapping the ends of adjacent microstrip antennas so that a resultant additive effect of the radiated microwave energy is exhibited near the ends of the antennas. The overall effect is to produce a more uniform radiation pattern which does not have the typical radiation minima located at the ends of the dipole antennas.

REFERENCES:
patent: 4190053 (1980-02-01), Sterzer
patent: 4397313 (1983-08-01), Vaguine
patent: 4397314 (1983-08-01), Vaguine
patent: 4446874 (1984-05-01), Vaguine
patent: 4471787 (1984-09-01), Bentall
patent: 4589423 (1986-05-01), Turner
patent: 4633262 (1986-12-01), Traut
patent: 4660048 (1987-04-01), Doyle
patent: 4812855 (1989-03-01), Coe et al.
"Microstrip Loop Radiators for Local Hyperthermia", Bahl et al., IEEE MTT Symposium (LA), Jun. 1987.
"A Microstrip Antenna for Medical Applications", Bahl et al., IEEE MTT Symposium (DC), May 1980.
"A New Microstrip Radiation for Medical Applications", Bahl et al., IEEE-MTT 28, vol. 12, 12-1980.

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