Instrumentation of a high-sensitivity microwave vector detection system for low-temperature applications

Details Instrumentation of a high-sensitivity microwave vector detection system for low-temperature applications Instrumentation of a high-sensitivity microwave vector detection system for low-temperature applications

2005-04-23

arxiv.org/abs/cond-mat/0504601v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 11 figures, 1 table, letter

Scientific paper

10.1063/1.2006327

We present the design and the circuit details of a high-sensitivity microwave vector detection system, which is aiming for studying the low-dimensional electron system embedded in the slots of a coplanar waveguide at low temperatures. The coplanar waveguide sample is placed inside a phase-locked loop; the phase change of the sample may cause a corresponding change in the operation frequency, which can be measured precisely. We also employ a double-pulse modulation on the microwave signals, which comprises a fast pulse modulation for gated averaging and a slow pulse modulation for lock-in detection. In measurements on real samples at low temperatures, this system provides much better resolutions in both amplitude and phase than most of the conventional vector analyzers at power levels below -65 dBm.

Affiliated with

Also associated with

No associations

Rating

Instrumentation of a high-sensitivity microwave vector detection system for low-temperature applications does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Instrumentation of a high-sensitivity microwave vector detection system for low-temperature applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instrumentation of a high-sensitivity microwave vector detection system for low-temperature applications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-716358