A plane-wave beam-steering lens design using microstrip switched-line phase shifters

H. J. Park, D. H. Lee, Moonil Kim, D. S. Eom, Y. K. Chang

Research output: Contribution to journalArticle

Abstract

A compact beam-steering lens design appropriate for millimeter-wave and submillimeter-wave applications is experimentally verified with an X-band test model. The lens achieves coupling to plane-wave beams through arrays of patch antennas placed on its two outer surfaces. The isolation between input and output antennas is accomplished by inserting a metal ground plane in the middle of the lens. The two closest patch antennas on the front and the backside are connected together with microstrip circuits that include switched-line phased shifters and interconnecting vias through the lens substrate. Three different X-band 100-element plane-wave microstrip lenses that use passive delay lines instead of actual phase-shifters were fabricated to successfully demonstrate the beam-steering angles of 20 and 40 degrees. From a separate waveguide measurement on the unit-cell element only, the insertion loss of the lens was estimated to be approximately 3.5 dB with bandwidth of 2% at 10 GHz.

Original languageEnglish
Pages (from-to)117-124
Number of pages8
JournalInternational Journal of Infrared and Millimeter Waves
Volume26
Issue number1
DOIs
Publication statusPublished - 2005 Jan 1

Fingerprint

lens design
beam steering
Phase shifters
Lenses
plane waves
lenses
patch antennas
superhigh frequencies
Microstrip antennas
submillimeter waves
Submillimeter waves
delay lines
insertion loss
Antenna grounds
millimeter waves
Electric delay lines
Insertion losses
isolation
Millimeter waves
antennas

Keywords

  • Beam-steering lens
  • Patch antenna
  • Phase shifter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

A plane-wave beam-steering lens design using microstrip switched-line phase shifters. / Park, H. J.; Lee, D. H.; Kim, Moonil; Eom, D. S.; Chang, Y. K.

In: International Journal of Infrared and Millimeter Waves, Vol. 26, No. 1, 01.01.2005, p. 117-124.

Research output: Contribution to journalArticle

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