Browse > Article
http://dx.doi.org/10.9766/KIMST.2017.20.3.413

A Study on Configuration of True Time Delay Phase Shifter for Wideband Beam Steering Phased Array Antenna  

Jung, Jinwoo (The 2nd Research and Development Institute, Agency for Defense Development)
Ryu, Jiho (The 2nd Research and Development Institute, Agency for Defense Development)
Park, Jaedon (The 2nd Research and Development Institute, Agency for Defense Development)
Seo, Jongwoo (The 2nd Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.20, no.3, 2017 , pp. 413-420 More about this Journal
Abstract
We investigate the performance of a true time delay(TTD) phase shifter to reduce the beam squint caused by frequency changes of a phased array antenna in wideband communication systems. To design a high gain phased array antenna, we need a long TTD, which causes high RF loss, low resolution and large dimension of TTD phase shifters. To overcome the problems, we propose a schematic of dual TTD phase shifters, which consists of short time delay(STD) in radio frequency(RF) part and long time delay(LTD) in intermediate frequency(IF) part. Our analysis results show that the proposed scheme reduces the required bits and delay time in RF band of the TTD compared to the conventional single TTD scheme.
Keywords
Beam Squint; Beam Steering; Phased Array Antenna; Phase Shifter; True Time Delay; Wide Band Antenna;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. I. Skolnik, "Introduction to Radar System," 3rd ed. New York, NY : McGraw-Hill, 2001.
2 R. J. Mailoux, "Phased Array Antenna Handbook," Artech House, 2007.
3 John S. Kot, Ian M. Davis, Christophe Granet and Greg Pope, "Antenna Concepts for Ka-Band SATCOM on the Move," MILCIS 2009.
4 Matt Longbrake, "True Time-Delay Beamsteering for Radar," Aerospace and Electronics Conference, pp. 246-249, 2012.
5 John G. Willms, Aziz Ouacha, Lex de Boer, Frank E. Vliet, "A Wideband GaAs 6-Bit True-Time Delay MMIC Employing On-Chip Digital Drivers," Microwave Conference, pp. 1-4, 2000.
6 M. Yajima, T. Hasegawa, "Beam Pointing Error of Wideband Planar Phased Array," IEEE International Conference on Communications, pp. 4161-4166, 2006.
7 R. J. Mailoux, "Phased Array Theory and Technology," in Proc. IEEE, Vol. 70, No. 3, pp. 246-291, 1982.   DOI