A microcontroller configured active analog phase shifter at 1.96GHz

Author

Chen, Weiqun ; Ferendeci, Altan M.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Cincinnati, Cincinnati, OH, USA

fYear

2010

fDate

Aug. 28 2010-Sept. 3 2010

Firstpage

1

Lastpage

4

Abstract

Personal Communications Service (PCS) is one of the most popular digital mobile phone services standards in North America. Its downlink frequency band is centered at 1.96GHz with 60MHz bandwidth. This research presents a microcontroller configured active analog phase shifter at 1.96GHz with phase-shifting range of 90°. The Microcontroller (MCU) increases the flexibility of control circuits and provides additional flexibility to extend the application of the phase shifter to phased array antennas. Applying algorithm to compensate the amplifier´s gain-versus-control-voltage non-linear characteristics results in a small RMS phase error of 1.3° with a constant gain (|S21|>1) and increases the transmission power efficiency.

Keywords

antenna phased arrays; microcontrollers; microwave phase shifters; mobile handsets; personal communication networks; telecommunication services; telecommunication standards; RMS phase error; active analog phase shifter; bandwidth 60 MHz; digital mobile phone services standards; frequency 1.96 GHz; gain-versus-control-voltage nonlinear characteristics; microcontroller; personal communications service; phased array antennas; transmission power efficiency; Gain; Microcontrollers; Microwave amplifiers; Microwave circuits; Phase shifters; Voltage control; DAC; active; analog; compensation non-linearity; microcontroller; phase shifter;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Information Technology and Systems (ICWITS), 2010 IEEE International Conference on

Conference_Location

Honolulu, HI

Print_ISBN

978-1-4244-7091-4

Type

conf

DOI

10.1109/ICWITS.2010.5611850

Filename

5611850