A programmable phased array with time-delay units and its applications

Q. Md Alfred, N. Chopra, T. Chakravarty, G. Singh, S. K. Sanyal

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, a phased array antenna schematic using true time delays is proposed and suitable time-delays are inserted by switching ON/OFF the RF switches. Using this concept, one can generate SUM pattern, DIFFERENCE pattern, as well as a combination of these two. It is shown that SUM-DIFFERENCE pattern has interesting applications in radar, namely, calibration of beam pointing accuracy and blind speed elimination in a delay line cancellation method. The proposed method can also be formatted to requirements of conical scan as well as shaped beam generation. The proposed method is validated using existing knowledge.

Original languageEnglish
Pages (from-to)59-67
Number of pages9
JournalInternational Journal of Wireless Information Networks
Volume16
Issue number1-2
DOIs
Publication statusPublished - Jun 2009
Externally publishedYes

Keywords

  • Conical scan
  • Microcontroller
  • Phase shifter
  • Phased array time-delay
  • Shaped beam

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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