Optimization of DC power to effective irradiated power conversio

Details Optimization of DC power to effective irradiated power conversio Optimization of DC power to effective irradiated power conversio

1996-12-30

1999-08-17

Wong, Don

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343895, 343853, H01Q 150, H01Q 136

Patent

active

059400455

ABSTRACT:
A (monofilar or bifilar) helical antenna feed arrangement optimizes the efficiency of converting DC power of RF power amplifier circuitry into radiated power by means of a multi RF amplifier and port feed arrangement, that is exclusive of a lossy hybrid combiner. The arrangement combines the power conversion efficiencies of each of a plurality of RF amplifiers in an effectively lossless manner, and feeds the outputs of such RF power amplifiers, to respectively spaced apart, impedance matched, near end field feed locations of the helical antenna. A signal divider and associated phase delay circuit are operative to output respective phase-offset versions of a signal to be radiated by the helical antenna, which are offset in phase with respect to one another by the electrical phase differential between the spaced apart feed locations of the helical antenna.

REFERENCES:
patent: 3983561 (1976-09-01), Biagi et al.
patent: 4014028 (1977-03-01), Cone et al.
patent: 5532706 (1996-07-01), Reinhardt et al.
patent: 5568158 (1996-10-01), Gould

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