An Ultrawideband Cross-Correlation Radiometer for Mesoscopic Experiments

Author

Toonen, Ryan Christopher ; Haselby, Cyrus C. ; Blick, Robert H.

Author_Institution

U.S. Army Res. Lab., Aberdeen Proving Ground, MD

Volume

57

Issue

12

fYear

2008

Firstpage

2874

Lastpage

2879

Abstract

We have designed, built, and tested a cross-correlation radiometer for detecting quantum statistical fluctuations in mesoscopic experiments. We present the details of our design and the results of our characterization. Our instrument operates over the X- and Ku-bands (8-18 GHz). Digital signal processing techniques are used to provide robustness against instrumentation drifts and offsets. The economized version of our instrument can detect, with sufficient correlation efficiency, noise signals having power levels as low as 10 fW. The modularity of our design allows one to easily alter the specifications (such as the bandwidth and the sensitivity) by simply replacing individual components.

Keywords

radiometers; signal processing; ultra wideband technology; digital signal processing techniques; frequency 8 GHz to 18 GHz; mesoscopic experiments; quantum statistical fluctuations; ultrawideband cross-correlation radiometer; Correlation; correlators; microwave radiometry; noise; noise measurement; quantum-effect semiconductor devices; radiometry; temperature measurement;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2008.925011

Filename

4547484