Antenna with diffraction grating modulator

Details Antenna with diffraction grating modulator Antenna with diffraction grating modulator

1999-02-09

2000-03-14

Wong, Don

Communications: radio wave antennas

Antennas

Microstrip

343753, 343785, 343909, H01Q 138

Patent

active

060379049

ABSTRACT:
An antenna includes a substrate, a microstrip patch or a slot, a feed line connected to the microstrip patch or slot, and a diffraction grating modulator mounted on the substrate and formed with a spatial periodic structure. The microstrip patch or slot radiates and receives electromagnetic waves when a signal between the substrate and the microstrip patch or slot satisfies resonance conditions. The diffraction grating modulator diffracts the electromagnetic waves in a predetermined manner so as to improve antenna gain and side lobe bandwidth and modulate directionality of the antenna.

REFERENCES:
patent: 4063246 (1977-12-01), Greiser
patent: 4079382 (1978-03-01), Henry
patent: 5027055 (1991-06-01), Lee et al.
patent: 5757323 (1998-05-01), Spencer

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