An automated 60 GHz open resonator system for precision dielectric measurements

Author

Afsar, Mohammed N. ; Li, Xiaohui ; Chi, Hua

Author_Institution

Dept. of Electr. Eng., Tufts Univ., Medford, MA, USA

Volume

38

Issue

12

fYear

1990

fDate

12/1/1990 12:00:00 AM

Firstpage

1845

Lastpage

1853

Abstract

An automated open resonator system was designed and constructed for precision measurement of the loss tangent and dielectric permittivity of low absorbing materials at 60 GHz. The use of a high-Q hemispherical Fabry-Perot cavity together with highly stabilized synthesized phase-locked Gunn oscillator sources and a superheterodyne receiver made it possible to measure loss tangent values as low as 10 μrad. Both cavity length variation and frequency variation techniques were utilized to provide precise data

Keywords

automatic test equipment; cavity resonators; dielectric loss measurement; permittivity measurement; 60 GHz; EHF; automated open resonator system; cavity length variation; dielectric permittivity; frequency variation techniques; high-Q hemispherical Fabry-Perot cavity; loss tangent; low absorbing materials; millimetre wave operation; phase-locked Gunn oscillator sources; precision dielectric measurements; superheterodyne receiver; Dielectric loss measurement; Dielectric losses; Dielectric materials; Dielectric measurements; Fabry-Perot; Gunn devices; Loss measurement; Oscillators; Permittivity measurement; Q measurement;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.64565

Filename

64565