Liquid Metal Reconfigurable Phased Array Antenna

Shaker Alkaraki, Quan Wei Lin, Fuad Erman, Syeda Fizzah Jilani, Zhengpeng Wang, Hang Wong, James R. Kelly

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

Abstract

A design for a phased array antenna using liquid metal (LM) technology is presented. The phased array antenna uses substrate integrated waveguides (SIW) feeding structure to excite a 1×4 printed dipole antenna array. The phase distribution on SIW power dividers is manged using LM shorting vias inside the SIW. The integrated LM vias offers an extensive phase tuning range of 360° delivering stable, low-loss, and wide bandwidth. In more detail, the reconfigurability of phase control within the array can be realized by manipulating the presence or absence of liquid metals in designated vias in the SIW. A prototype of the LM phased array antenna, operating at 10 GHz, has been measured, demonstrating an impedance bandwidth exceeds 10% with maximum gain of higher than 8 dBi and a scanning range of approximately ±40° along the end-fire direction. This technology holds promise as a reliable and cost-effective solution for wideband phased array applications.

Original languageEnglish
Title of host publication18th European Conference on Antennas and Propagation
PublisherIEEE Press
ISBN (Electronic)9788831299091
DOIs
Publication statusPublished - 26 Apr 2024
Event18th European Conference on Antennas and Propagation, EuCAP 2024 - Glasgow, United Kingdom of Great Britain and Northern Ireland
Duration: 17 Mar 202422 Mar 2024

Publication series

NameEuropean Conference on Antennas and Propagation, EuCAP
PublisherIEEE Press
Number18

Conference

Conference18th European Conference on Antennas and Propagation, EuCAP 2024
Country/TerritoryUnited Kingdom of Great Britain and Northern Ireland
CityGlasgow
Period17 Mar 202422 Mar 2024

Keywords

  • Gallium
  • phase shifters
  • phased antenna arrays
  • reconfigurable devices
  • SIW

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