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Low-insertion loss phase shifter for millimeter-wave phased array antennas

Published online by Cambridge University Press:  16 October 2014

Ahmed Shehata Abdellatif ,
Aidin Taeb ,
Nazy Ranjkesh ,
Suren Gigoyan ,
Elizaveta Nenasheva  and
Safieddin Safavi-Naeini
Ahmed Shehata Abdellatif*
Affiliation:
Electrical and Computer Engineering Department, University of Waterloo, Waterloo, ON N2L3G1, Canada
Aidin Taeb
Affiliation:
Electrical and Computer Engineering Department, University of Waterloo, Waterloo, ON N2L3G1, Canada
Nazy Ranjkesh
Affiliation:
Electrical and Computer Engineering Department, University of Waterloo, Waterloo, ON N2L3G1, Canada
Suren Gigoyan
Affiliation:
Electrical and Computer Engineering Department, University of Waterloo, Waterloo, ON N2L3G1, Canada
Elizaveta Nenasheva
Affiliation:
GIRICOND Research Institute, Saint Petersburg 194223, Russia
Safieddin Safavi-Naeini
Affiliation:
Electrical and Computer Engineering Department, University of Waterloo, Waterloo, ON N2L3G1, Canada
*
Corresponding author: A. S. Abdellatif Email: aabdella@uwaterloo.ca
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Abstract

This paper proposes a compact, low-loss, and low-cost phase shifter for millimeter-wave/sub-THz applications. The basic idea is to perturb the propagation constant of a high resistivity silicon image guide by high-dielectric constant barium lanthanide tetratitanates (BLT) ceramic loading. Three different BLT ceramic samples have been tested. The measured maximum phase-shift variation reaches 150° at 100 GHz with an average insertion loss of 2.85 dB and an insertion loss variation <0.7 dB for a sample of a 5-mm length. The proposed phase shifter has a bandwidth from 95 to 105 GHz. A low-cost fabrication technology has been developed and used to realize this phase shifter.

Keywords

Passive Components and CircuitsNew and Emerging Technologies and Materials
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 1 , February 2016 , pp. 33 - 39
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

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