D5. Wideband tunable MEMS phase shifters for radar phased array antenna

Author

Aboul-Seoud, Ahmed Khairy ; Hamed, Ahmed ; Hafez, Alaa El-Din Sayed

Author_Institution

Fac. of Eng., Alexandria Univ., Alexandria, Egypt

fYear

2012

fDate

10-12 April 2012

Firstpage

593

Lastpage

599

Abstract

A wideband tunable MicroElectroMechanical System (MEMS) phase shifter is proposed for radar phased array antenna. A tuning circuit is added to modulate a narrow band phase shifter to achieve a bandwidth of about 200 MHz at 3 GHz central frequency which is suitable for radar applications. RF capacitors, inductors, and resistors are selected and optimized for the tuning circuit to achieve a phase response suitable at the pre-mentioned bandwidth. The overall phase response of the phase shifter is an algebraic sum of the narrow band phase shifter and the tuning circuit phase responses. The phase shifter is designed, simulated and tested using Advanced Design System (ADS) software either with or without using tuning circuits. This type of phase shifters can give high performance and resolution at a bandwidth 20 times wider than the normal switched line phase shifter.

Keywords

antenna phased arrays; capacitors; circuit tuning; inductors; micromechanical devices; phase shifters; phased array radar; radar antennas; resistors; RF capacitor; advanced design system; bandwidth 200 MHz; frequency 3 GHz; inductors; microelectromechanical system phase shifter; narrow band phase shifter; radar phased array antenna; resistors; tuning circuit; wideband tunable MEMS phase shifters; Bandwidth; Educational institutions; Phase shifters; RLC circuits; Radar antennas; Radio frequency; Tuning; ADS; MEMS Switch; Phase response; Phased Array Antenna; Radar; Switched Line Phase Shifter; Tuning circuit; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Science Conference (NRSC), 2012 29th National

Conference_Location

Cairo

Print_ISBN

978-1-4673-1884-6

Type

conf

DOI

10.1109/NRSC.2012.6208570

Filename

6208570