Phased array antenna for radio frequency identification

Communications: radio wave antennas – Antennas – With vehicle

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Details

343814, 343815, 343816, 343821, H01Q 2112

Patent

active

056869282

ABSTRACT:
A multi-element, H plane, phased, dipole array antenna has a high gain over a wide angle in azimuth and over a controlled sector in elevation. Two printed wiring boards feed and physically support the dipole antenna elements. The phase and spacing of the dipole elements establish the radiation elevation angle, and a planar metallic reflector, spaced on the order of a half wavelength of the RF signal from the dipole array, interacts with the dipole-element pattern, to provide the wide angle azimuth gain.

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IBM Technical Disclosure Bulletin, vol. 37, No. 06A, Jun. 1994, pp. 145-146 .

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