By Topic

A W-Band 4-Bit Phase Shifter in Multilayer Scalable Array Systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

7 Author(s)
Shih, S.E. ; Northrop Grumman Space Technol., Redondo Beach ; Duan, D.W. ; Fordham, O. ; Tornquist, K.
more authors

This paper presents an ultra-compact W-band 4-bit phase shifter integrated in a 5-layer wafer-scale assembly phased array system. The phase shifter was implemented using a reflective-type circuit topology, consisting of a 3 dB Lange coupler and a pair of reflective loads. GaAs HEMT switches were used for switching the loads to achieve the desired phase shifts. On-wafer measurements of the single-bit test cells show phase deviations of 2.5deg from the target phase shifts and an insertion loss of 1.5 plusmn 0.7 dB at 91.5 GHz, while the measured 4-bit phase shifter data shows an insertion loss of 6.9 plusmn 1.1 dB and better than 10 dB return loss at 94 GHz. With its ultra-compact size, two 4-bit phase shifters can be fit into a 1.6 mm times 1.6 mm array-cell. This phase shifter combines state-of-the-art performance and size. To our knowledge, this is the first reported W-band phase shifter fabricated for multilayer wafer-scale assembly in a phased array system.

Published in:

Compound Semiconductor Integrated Circuit Symposium, 2007. CSIC 2007. IEEE

Date of Conference:

14-17 Oct. 2007