Proposed high-accuracy superconducting power meter for millimeter waves

Author

Kautz, R.L. ; McDonald, D.G. ; Walker, D.K. ; Williams, D.

Author_Institution

Nat. Inst. of Stand. & Technol., Boulder, CO, USA

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

2152

Lastpage

2155

Abstract

A prototype bolometer is described which offers potential as a nearly ideal power meter by absorbing and measuring nearly all of the incident power. The load developed for this bolometer is shown to reflect no more than 0.01% of the incident power. Assuming that the losses in niobium are no greater than those in lead, the power absorbed by the bolometer but not measured is less than 0.02% over a significant fraction of the WR-22 band (33-50 GHz). If the DC substitution error can be reduced to a comparable level, the proposed bolometer offers a possibility of improving the accuracy of millimeter-wave power measurement by an order of magnitude.<>

Keywords

bolometers; microwave detectors; microwave measurement; power measurement; superconducting junction devices; superconducting microwave devices; 33 to 50 GHz; DC substitution error; Nb; high-accuracy superconducting power meter; millimeter waves; nearly ideal power meter; prototype bolometer; Bolometers; Copper; Electromagnetic heating; Heat sinks; Microwave measurements; Millimeter wave technology; Niobium; Power measurement; Superconducting microwave devices; Temperature sensors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233928

Filename

233928