Low insertion loss variable phase shifter for emerging millimeter-wave communication systems

Author

Abdellatif, Ahmed Shehata ; Ranjkesh, N. ; Fahimnia, Mehrdad ; Taeb, A. ; Gigoyan, S. ; Safavi-Naeini, S.

Author_Institution

Univ. of Waterloo, Waterloo, ON, Canada

fYear

2014

fDate

1-6 June 2014

Firstpage

1

Lastpage

4

Abstract

This paper proposes a compact, low-loss, and low cost phase shifter for mmWave applications. The basic idea is perturbing the propagation constant of a CPW line by its loading with a high dielectric constant BLT ceramic. The phase shift is sensitive to the air gap between the CPW and the BLT sample. For a sample with a length of 3mm, a phase shift of 170° at 30GHz is obtained while the average insertion loss is less than 1.45dB with a variation of 1.1dB for the full range of phase shifts.

Keywords

barium compounds; ceramics; cerium compounds; coplanar waveguides; dielectric materials; europium compounds; lanthanum compounds; microwave materials; microwave phase shifters; millimetre wave materials; millimetre wave phase shifters; neodymium compounds; praseodymium compounds; samarium compounds; titanium compounds; BaO-Ce₂O₃TiO₂; BaO-Eu₂O₃TiO₂; BaO-La₂O₃TiO₂; BaO-Nd₂O₃TiO₂; BaO-Pr₂O₃TiO₂; BaO-Sm₂O₃TiO₂; CPW line; air gap; dielectric constant BLT ceramic; frequency 30 GHz; loss 1.1 dB; low insertion loss variable phase shifter; millimeter-wave communication system; propagation constant; size 3 mm; Coplanar waveguides; Impedance; Microwave antennas; Microwave theory and techniques; Phase measurement; Switches; Thickness measurement; Coplanar waveguide; high resistivity Silicon; millimeter-wave antennas; phase shifters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (IMS), 2014 IEEE MTT-S International

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/MWSYM.2014.6848543

Filename

6848543