Electronically controlled reciprocal phase shifter

A reciprocal phase shifter principle is proposed, of very simple design with only one control voltage, which enables the continuous variation of the phase at a frequency of 1.89 GHz. An implementation on Teflon substrate using Wilkinson dividers and a second-order filter using one variable capacitor is presented. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2301–2303, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21911