Ultra-wideband array antenna utilizing novel scanning system with tapped delay lines for short range radar

Fuminori Sakai, Kazuo Ohta, Kunio Sawaya

Research output: Contribution to journalArticlepeer-review

Abstract

A UWB impulse array antenna (IAA) utilizing a novel electrical scanning system with tapped delay lines is proposed and its usefulness is experimentally verified. The experimental antenna is composed of impulse generators installed in each antenna element and tapped delay lines used for creating transmitting trigger signals, which is a simple circuit configuration. It is shown that the output phase of the transmitting wave can be controlled by controlling the period of the trigger signal, and beam direction can be controlled from -30 deg to +30 deg by changing the trigger frequency from Fc -2 kHz to Fc+2 kHz. Evaluation of this antenna as a short range radar is carried out and distance resolution of 25 cm and angle resolution below 10 deg are obtained.

Original languageEnglish
Pages (from-to)1194-1200
Number of pages7
JournalIEICE Transactions on Communications
VolumeE94-B
Issue number5
DOIs
Publication statusPublished - 2011 May

Keywords

  • Array antenna
  • Delay line
  • Impulse
  • Scanning antenna
  • Ultrawideband

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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