A Continuously Variable Dielectric Phase Shifter

Journal Article

A stripline phase shifter is described which yields a linear variable phase shift versus frequency. The phase shift is ac complished by varying the dielectric constant of the medium through which the signal propagates. Characteristic impedance is kept constant at all phase shift settings; hence, in theory, no reflections are produced. Measurements made over the 1 to 2 GHz band show the maximum voltage standing-wave ratio (VSWR) to be 1.15. Measured values of insertion phase shift over the same frequency band show good agreement with theory (maximum difference about 2.5 percent). Copyright © 1971 by The Institute of Electrical and Electronics Engineers, Inc.

Full Text

Duke Authors

Cited Authors

  • Joines, WT

Published Date

  • 1971

Published In

Volume / Issue

  • 19 / 8

Start / End Page

  • 729 - 732

International Standard Serial Number (ISSN)

  • 0018-9480

Digital Object Identifier (DOI)

  • 10.1109/TMTT.1971.1127615