A 6 bit vector-sum phase shifter with a decoder based control circuit for x-band phased-arrays

Çetindoğan, Barbaros and Özeren, Emre and Üstündağ, Berktuğ and Kaynak, Mehmet and Gürbüz, Yaşar (2016) A 6 bit vector-sum phase shifter with a decoder based control circuit for x-band phased-arrays. IEEE Microwave and Wireless Components Letters, 26 (1). pp. 64-66. ISSN 1531-1309 (Print) 1558-1764 (Online)

This is the latest version of this item.

[img]PDF - Registered users only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Official URL: http://dx.doi.org/10.1109/LMWC.2015.2505618


This letter presents a 6 bit vector-sum phase shifter with a novel control circuitry for X-band phased-arrays using a 0.25 mu m SiGe BiCMOS technology. A balanced active balun and highly accurate I/Q network are employed to generate the reference in-phase and quadrature vectors. The desired phase is synthesized by modulating and summing the generated reference vectors using current steering VGAs that are controlled by a decoder based control circuit. The phase shifter resulted in a measured RMS phase error < 2.8 degrees between 9.6-11.7 GHz and < 5.6 degrees between 8.2-12 GHz, achieving 6 bit phase resolution. The chip size is 1.87 x 0.88 mm(2), excluding pads. To the best of authors' knowledge, this is the first demonstration of a digitally controlled 6 bit vector-sum phase shifter for X-band.

Item Type:Article
Uncontrolled Keywords:Phased-arrays; vector-sum phase shifters; X-band
ID Code:29839
Deposited By:Yaşar Gürbüz
Deposited On:09 Nov 2016 15:22
Last Modified:09 Nov 2016 15:22

Available Versions of this Item

Repository Staff Only: item control page