Measurements of micromachined waveguide devices at WR-3 band using a T/R-T module based network analyzer

Author

Wang, Yi ; Lancaster, Michael J. ; Ke, Maolong ; Shang, Xiaobang

Author_Institution

Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK

fYear

2011

fDate

10-10 June 2011

Firstpage

1

Lastpage

4

Abstract

Making accurate and reliable measurements at WR-3 band is challenging. This is made more so when a T/R-T based test configuration is used. This paper compared the calibrations and measurements between a T/R-T and a full T/R-T/R configuration. The shortfall of load matching in the T/R-T configuration has been identified and described using signal flow analyses. The effects of both the device performance and the load match on the measurement uncertainty have been studied. The insertion of an attenuator at the T-module test port has been used to overcome the poor load matching, and significant improvements have been achieved on the measurements of micromachined waveguide devices.

Keywords

calibration; measurement uncertainty; micromachining; millimetre wave devices; millimetre wave measurement; network analysers; T/R-T module; WR-3 band; attenuator; calibrations; load matching; measurement uncertainty; micromachined waveguide devices; network analyzer; signal flow analyses; Attenuation measurement; Attenuators; Calibration; Frequency measurement; Loss measurement; Measurement uncertainty; Millimeter wave measurements; Micromachining; Millimeter wave devices; Millimeter wave measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Measurement Conference (ARFTG), 2011 77th ARFTG

Conference_Location

Baltimore, MD

Print_ISBN

978-1-61284-959-1

Electronic_ISBN

978-1-61284-960-7

Type

conf

DOI

10.1109/ARFTG77.2011.6034563

Filename

6034563