Polar digital beamforming method and system

Details Polar digital beamforming method and system Polar digital beamforming method and system

1994-12-05

1996-07-30

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342157, 342 81, H01Q 322, H01Q 324, H01Q 326

Patent

active

055416071

ABSTRACT:
A system and method for polar digital beamforming of at least one independent transmit beam is disclosed. A computer generates a digital signal representing both pointing and modulation information which is communicated to a plurality of subarray controllers which generate the polar weighting signals corresponding to the appropriate antenna element for transmitting. The complex weighting signals may be generated by summing a sequence of complex multiplications or by simply inverting the real and imaginary components of the weighting signal for particular modulation schemes. A phasor may be used in conjunction with an attenuator to modulate a local carrier signal. Alternatively, phasors are utilized without attenuators to increase the efficiency of the power amplifiers. The antenna architecture disclosed permits a single set of phasors and attenuators to be utilized per antenna element regardless of the number of beams to be generated.

REFERENCES:
patent: 4965588 (1990-10-01), Lenormand et al.
patent: 4983981 (1991-01-01), Feldman
patent: 5093667 (1992-03-01), Andricos

Affiliated with

Also associated with

Rating

Polar digital beamforming method and system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polar digital beamforming method and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polar digital beamforming method and system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1662830