A symmetric lattice-based wideband wide phase range digital phase shifter topology

Avci C., Güneş E. O., Yarrnan B. S.

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS, vol.47, no.8, pp.1269-1292, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 8
  • Publication Date: 2019
  • Doi Number: 10.1002/cta.2639
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1269-1292
  • Keywords: digital phase shifters, lossless two ports, microwave monolithic integrated circuits, radio frequency and microwave circuits, symmetrical lattice sections, C-BAND
  • Istanbul Technical University Affiliated: Yes


In this paper, a novel digital phase shifter topology that achieves wideband and wide phase range is proposed. Wide frequency band operation is accomplished employing symmetrical all-pass lattice structures. Compact phase shifter size is obtained utilizing the miniaturized microwave monolithic integrated circuit (MMIC) design implementation technology. Therefore, resulting phase shifter units are suitable for various communication systems such as radar and cellular communication smart antenna arrays. This paper provides complete design equations together with design algorithm for the selected phase shift and the center frequency. Design algorithm is developed on MatLab environment. The proposed phase shifting circuit is implemented employing the commercially available 0.18-mu m silicon CMOS technology. The new phase shifter topology provides 0(0) to 360(0) phase shift range over X-band, even beyond.