Virtual Phase Shifter Array and Its Application on Ku Band Mobile Satellite Reception

A virtual phase shifter-based phased array is introduced, fabricated, and measured. Compared to the traditional analog phase shifter mechanism, the proposed virtual phase shifter has very precise phase shifting steps (14 bits over 360°) and the constant insertion loss over all phase states. To verif...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2015-04, Vol.63 (4), p.1408-1416
Main Authors: Chen, Peng, Hong, Wei, Zhang, Hui, Chen, Jixin, Tang, Hongjun, Chen, Zhe
Format: Article
Language:English
Subjects:
Arrays
Beam steering
Calibration
Clocks
Direct Digital Synthesis (DDS)
Microwave filters
Mobile Satellite Communication
Phase shifters
Phased Arrays
Resonator filters
Satellites
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Summary:A virtual phase shifter-based phased array is introduced, fabricated, and measured. Compared to the traditional analog phase shifter mechanism, the proposed virtual phase shifter has very precise phase shifting steps (14 bits over 360°) and the constant insertion loss over all phase states. To verify the concepts, a 256 (16 × 16)-element planar rectangular grid phased array is built at Ku band for mobile satellite reception. Eleven decibel carrier to noise ratio (C/N) is obtained when the phased array was in its tracking state. System architecture, phased array element design, calibration procedure, and beam tracking methods are also presented in this paper.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2015.2393887