TY - JOUR
T1 - Wideband antenna patterns and impulse response of broadband RF phased arrays with RF and photonic beamforming
AU - Rotman, Ruth
AU - Raz, Oded
AU - Barzilay, Sharon
AU - Rotman, Stanley R.
AU - Tur, Moshe
PY - 2007/1
Y1 - 2007/1
N2 - The general expression for a monochromatic antenna pattern is extended to a two dimensional function with dependence on both space and time. Expressions for the wideband antenna pattern in space and the impulse response in time are developed. The effects of random errors in the spatial domain and errors common to all elements with fluctuations in the frequency domain are analyzed. Examples are given, including RF beamformers and elements in finite arrays, but with an emphasis on a photonic beamformer, which shows improved performance relative to its RF counterparts in both the spatial and time domains.
AB - The general expression for a monochromatic antenna pattern is extended to a two dimensional function with dependence on both space and time. Expressions for the wideband antenna pattern in space and the impulse response in time are developed. The effects of random errors in the spatial domain and errors common to all elements with fluctuations in the frequency domain are analyzed. Examples are given, including RF beamformers and elements in finite arrays, but with an emphasis on a photonic beamformer, which shows improved performance relative to its RF counterparts in both the spatial and time domains.
KW - Antenna arrays
KW - Photonic beamforming
KW - Wideband beamforming networks
KW - Wideband phased array
KW - Wideband radar requirements
UR - http://www.scopus.com/inward/record.url?scp=33846912519&partnerID=8YFLogxK
U2 - 10.1109/TAP.2006.888441
DO - 10.1109/TAP.2006.888441
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AN - SCOPUS:33846912519
SN - 0018-926X
VL - 55
SP - 36
EP - 44
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 1
ER -