Analog/Digital Ferrite Phase Shifter for Phased Array Antennas

Author

Sheikh, Sharif Iqbal Mitu ; Gibson, A.A.P. ; Basorrah, M. ; Alhulwah, G. ; Alanizi, K. ; Alfarsi, M. ; Zafar, J.

Author_Institution

Dept. of Electr. Eng., King Fahd Univ. of Pet. & Minerlas, Dhahran, Saudi Arabia

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

319

Lastpage

321

Abstract

A planar ferrite phase shifter is designed to exhibit simultaneous analog and digital phase tuning properties. Analog phase control is achieved by using an external magnetizing field, and digital phase change is realized by switching the phase shifter operation from microstrip to waveguide mode. Simulated and experimental results are presented to demonstrate the impedance matching and dual-phase tuning properties. At 9-GHz, a differential digital phase shift of 100??/bit and an analog phase control of 16??/mT is exhibited. When applied in phased array antennas, these easily integrated low-cost planar phase shifters can produce high-resolution wide-angle beam scan by employing analog/digital phase control circuits.

Keywords

antenna phased arrays; ferrite phase shifters; impedance matching; microstrip antenna arrays; phase control; analog ferrite phase shifter; analog phase control circuits; digital ferrite phase shifter; digital phase control circuits; dual-phase tuning properties; frequency 9 GHz; high-resolution wide-angle beam scan; impedance matching; phased array antennas; planar ferrite phase shifter; simultaneous analog phase tuning properties; simultaneous digital phase tuning properties; Ferrite; microstrip; phase shifter; phased array;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2048190

Filename

5447693