Title :
Developments in coaxial power standards at NPL
Author_Institution :
Center for Electromagn. Metrol., Nat. Phys. Lab., Teddington, UK
Abstract :
A 2.4 mm twin line coaxial calorimeter is the first microwave power standard in this line size to be developed at the National Physical Laboratory. The instrument will provide traceable power measurements from dc to 50 GHz and has an effective efficiency ranging from 101.1% at 1.0 GHz to 92.2% at 50.0 GHz.
Keywords :
calorimeters; coaxial cables; measurement standards; measurement uncertainty; microwave measurement; power measurement; 1 to 50 GHz; 101.1 to 92.2 percent; NPL standards; coaxial power standards; effective efficiency; microwave power standard; overmode free operation; temperature controlled enclosure; terminated coaxial lines; traceable power measurements; traceable standard; twin line coaxial calorimeter; uncertainty; Bridge circuits; Coaxial components; Connectors; Instruments; Laboratories; Power measurement; Standards development; Temperature control; Temperature sensors; Thermal resistance;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.700109
