Wideband antenna patterns and impulse response of broadband RF phased arrays with RF and photonic beamforming

Ruth Rotman, Oded Raz, Sharon Barzilay, Stanley R. Rotman, Moshe Tur

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)36-44
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume55
Issue number1
DOIs
StatePublished - Jan 2007

Keywords

  • Antenna arrays
  • Photonic beamforming
  • Wideband beamforming networks
  • Wideband phased array
  • Wideband radar requirements

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