A comparison of active phased array, corporate beamforming architectures

Author

Holzman, Eric L. ; Agrawal, Ashok K.

Author_Institution

Gov. Electron. Syst., Lockheed Martin, Moorestown, NJ, USA

fYear

1996

fDate

15-18 Oct 1996

Firstpage

429

Lastpage

434

Abstract

We compare two common receive beamformer architectures used in active phased arrays to generate low side lobe sum patterns. We consider the architectural complexity and receive performance (noise figure and output intercept point) for the two beamformers. In addition, we discuss wide-band, time delay steered, subarray implementations of both architectures. Finally, we present a hybrid architecture, in which the amplitude taper partially is applied actively in the transmit/receive (T/R) module´s receive VGA and partially created from non-uniform combiners

Keywords

active antenna arrays; antenna phased arrays; antenna radiation patterns; array signal processing; phased array radar; radar antennas; receiving antennas; active phased array; amplitude taper; architectural complexity; corporate beamforming architecture; hybrid architecture; low side lobe sum patterns; monopulse radar systems; noise figure; nonuniform combiners; output intercept point; receive VGA; receive beamformer architectures; receive performance; time delay steered architecture; transmit/receive module; wideband arrays; Apertures; Array signal processing; Delay effects; Government; Noise figure; Phased arrays; Radar antennas; Radar tracking; Switches; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Phased Array Systems and Technology, 1996., IEEE International Symposium on

Conference_Location

Boston, MA

Print_ISBN

0-7803-3232-6

Type

conf

DOI

10.1109/PAST.1996.566131

Filename

566131