Phased array antenna architecture and related method

Details Phased array antenna architecture and related method Phased array antenna architecture and related method

1990-12-24

1992-01-07

Blum, Theodore M.

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

Directive

Including a steerable array

342372, H01Q 322, H01Q 324, H01Q 326

Patent

active

050795570

ABSTRACT:
A phased array antenna having a first plurality of phase shifters each connected to a solid state transmit module power amplifier. Equal split power combiners, each having a pair of inputs and a pair of outputs, are connected to the power amplifiers and to each other in a corporated tree hierarchal configuration. One of the pair of inputs of each of the power combiners of each higher hierarchy is connected to one of the pair of outputs of the power combiners of a lower hierarchy. A subarray is connected to the other of the pair of outputs of each of the power combiners. A subarray is connected to both outputs of the highest hierarchy. A second plurality of individual phase shifter elements are associated with the individual elements of each subarray. The first plurality of phase shifter elements adjust the illumination and phase of the signal entering each subarray. The second plurality of phase shift elements steer the beam. The array architecture enables varying the aperture taper without incurring significant power loss; and the internal tapering of each subarray to control quantization effects.

REFERENCES:
patent: 4827270 (1989-05-01), Udagawa et al.

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