The design and development of a cryogenic Ultra-Low-Noise Signal Amplification (ULNA) and detection system for spectroscopy of ultra-cold systems are reported here for the operation in the 0.5 - 4 GHz spectrum of frequencies (the “L” and “S” microwave bands). The design is suitable for weak RF signal detection and spectroscopy from ultra-cold systems confined in cryogenic RF cavities, as entailed in a number of physics, physical chemistry and analytical chemistry applications, such as NMR/NQR/EPR and microwave spectroscopy, Paul traps, Bose-Einstein Condensates (BEC’s) and cavity Quantum Electrodynamics (cQED). Using a generic Low-Noise Amplifier (LNA) architecture for a GaAs enhancement mode High-Electron Mobility FET device, our design has especially been devised for scientific applications where ultra-low-noise amplification systems are sought to amplify and detect weak RF signals under various conditions and environments, including cryogenic temperatures, with the least possible noise susceptibility. The amplifier offers a 16 dB gain and a 0.8 dB noise figure at 2.5 GHz, while operating at room temperature, which can improve significantly at low temperatures. Both dc and RF outputs are provided by the amplifier to integrate it in a closed-loop or continuous-wave spectroscopy system or connect it to a variety of instruments, a factor which is lacking in commercial LNA devices. Following the amplification stage, the RF signal detection is carried out with the help of a post-amplifier and detection system based upon a set of Zero-Bias Schottky Barrier Diodes (ZBD’s) and a high-precision ultra-low noise jFET operational amplifier. The scheme offers unique benefits of sensitive detection and very-low noise amplification for measuring extremely weak on-resonance signals with substantial low- noise response and excellent stability while eliminating complicated and expensive heterodyne schemes. The LNA stage is fully capable to be a part of low-temperature experiments while being operated in cryogenic conditions down to about 500 mK.
References
[1]
Barrow, R.F., Long, D.A. and Sheridan, J., Eds. (1973) Molecular Spectroscopy, Vol. I. RSC Publishing, London.
[2]
Keeler, J. (2010) Understanding NMR Spectroscopy. 2nd Edition, Wiley, Hoboken.
[3]
Weil, J.A. and Bolton, J.R. (2006) Electron Paramagnetic Resonance: Elementary Theory and Practical Applications. 2nd Edition, Wiley, Hoboken. http://dx.doi.org/10.1002/0470084987
[4]
Cornell, E.A. and Wieman, C.E. (1998) The Bose-Einstein Condensate. Scientific American, 278, 40-45.
[5]
Jochim, S., et al. (2003) Bose-Einstein Condensation of Molecules. Science, 302, 2101-2103.
[6]
Kumar, N. and Gupta, S.C. (2014) A Planar Microstrip Metamaterial Resonator Using Split Ring Dual at Ku-Band. International Journal of Physical Sciences, 9, 26-33. http://dx.doi.org/10.5897/IJPS2013.4088
[7]
Bukhari, M.H.S. (2014) A Phenomenological Model for Photon Mass Generation in Vacuo. International Journal of Physical Sciences, 9, 48-53. http://dx.doi.org/10.5897/IJPS2013.4025
[8]
Asztalos, S.J., Carosi, G., Hagmann, C., Kinion, D., van Bibber, K., Hotz, M., et al. (2010) SQUID-Based Microwave Cavity Search for Dark Matter Axions. Physical Review Letters, 104, 041301-041305.
[9]
Dutra, S.M. (2005) Cavity Quantum Electrodynamics: The Strange Theory of Light in a Box. Wiley, Hoboken.
[10]
Shurakov, A., Seliverstov, S. Kaurova, N. Finkel, M. Voronov, B. and Goltsman, G. (2012) Input Bandwidth of Hot Electron Bolometer with Spiral Antenna. IEEE Transactions on Terahertz Science and Technology, 2, 400-405. http://dx.doi.org/10.1109/TTHZ.2012.2194852
[11]
Hesler, J.L. and Crowe, T.W. (2007) Responsivity and Noise Measurements of Zero-Bias Schottky Diode Detectors. In: Karpov, A., Ed., Proceedings of the 18th International Symposium on Space Terahertz Technology, ISSTT Publishing, Pasadena.
[12]
Gonzalez, G. (1984) Microwave Transistor Amplifiers Analysis and Design. Prentice-Hall, Englewood Cliffs.
[13]
Lee, T.H. (1989) The Design of Narrow-band CMOS RF Low-Noise Amplifiers, In: Huijsing, J., de Plassche, R.V. and Sanssen, W., Eds., Analog Circuit Design, Springer, New York, 303-316.
[14]
Radmanesh, M.M. (2007) RF and Microwave Design Essentials, Engineering Design and Analysis From DC to Microwaves. Authorhouse, New York.
[15]
(2012) ATF-54143 Low Noise Enhancement Mode Pseudomorphic HEMT in a Surface Mount Plastic Package Datasheet. Document Number AV02-0488EN, Avago Technologies, San Jose.
[16]
Payne, K. (2009) Practical RF Amplifier Design Using the Available Gain Procedure and the Advanced Design System EM/Circuit Co-Simulation Capability. Agilent Technologies Document Number 5990-3356EN, Agilent Technologies, San Jose.
[17]
Zhao, X.R., Fan, H.H., Ye, F.Y., Qian, X.F., Chen, D. and He, S. (2015) Design of a Two Stage Low Noise System in the Frequency Band 1.8-2.2 GHz for Wireless System. International Journal of Future Generation Communication and Networking, 8, 111-122.
[18]
Silverman, M.P. (2000) Probing the Atom: Interactions of Coupled States, Fast Beams, and Loose Electrons. Princeton University Press, Princeton.
[19]
(2002) Low-Noise Amplifiers using ATF55143 Low-Noise PHEMT. Application Note 1285, Agilent Technologies, Agilent, San Jose.
[20]
(2007) A 3.3 GHz to 3.8 GHz 802.16a WiMAX LNA using Avago Technologies ATF-54143. Application Note 5331, Avago, San Jose.
[21]
(2009) HSMS-285x. Surface Mount RF Zero-Bias Schottky Barrier Diodes Data Sheet. AV02-1377EN, Agilent Technologies, Avago, San Jose.
[22]
(2009) TLE207X Ex-Calibur Low-Noise High-Speed JFET-Input Operational Amplifiers Data Sheet. Document Number SLOS181C, Revised Edition, Texas Instruments, Dallas.
[23]
K & J Magnetics (2015) BCCC-N52 14,800 G NdFeB Magnet Data Sheet. K & J Magnetics, Pipersville.
[24]
Bukhari, M.H.S. and Shah, Z.H. A Detection Scheme for Resonant Cavity-based Dark Matter Searches.
[25]
Schleeh, J. (2012) Ultra-Low Noise InP HEMTs for Cryogenic Amplification: Engineering Licenciate Dissertation. Chalmers University of Technology, Goteborg.
[26]
Samoska, L.A., et al. (2011) Cryogenic MMIC Low Noise Amplifiers for W Band and Beyond. In: NRAO ISTT Proceedings, Charlottesville, 193-196. http://search.space-thz.org/catalog/2011193196
[27]
Bryerton, E.W., et al. (2009) A W-Band Low Noise Amplifier with 22K Noise Temperature, IEEE Microwave Symposium Digest. IEEE MTT-S International, Charlottesville, 7-12 June 2009, 681-684.
