Evaluation of cross-connected waveguides as transfer standards of transmission at high millimetre-wave frequencies. (6th July 2016)

• Record Type: Journal Article
• Authors: Ridler, Nick; Clarke, Roland; Huang, Hui; Zinal, Sherko
• Is Part Of: Metrologia. Volume 53:Number 4(2016:Aug.)
• Page Start: 1069
• Page End: 1078
• Publication Date: 2016-07-06
• Subjects: inter-laboratory comparison -- key comparisons -- millimetre-waves -- verification devices -- vector network analysis -- waveguides; Weights and measures -- Periodicals; Weights and Measures -- Periodicals; 530.805
• DOI: 10.1088/0026-1394/53/4/1069
• Languages: English
• ISSNs: 0026-1394

Abstract

Abstract: At the present time, transfer and verification standards of transmission coefficient (or, equivalently, transmission loss) are not readily available at high millimetre-wave frequencies (i.e. at frequencies ranging typically from 100 GHz to 300 GHz). In recent years, cross-connected waveguide devices have been proposed to provide calculable standards of transmission loss at these frequencies. This paper investigates the viability of these cross-connected waveguides as transfer standards of transmission for inter-laboratory measurement comparison exercises. This relates to their potential use in activities such as international key comparison exercises and measurement audit programmes. A trial inter-laboratory comparison involving four laboratories using two cross-connected waveguides in the WR-05 waveguide size (covering frequencies from 140 GHz to 220 GHz) is described and includes an analysis of the measurement results obtained during the comparison exercise.