"Don't ask yourself what the world needs. Ask yourself what makes you come alive, and go do that, because what the world needs is people who have come alive."

-- Howard Thurman

"I have come that they may have life, and have it to the full."

-- Jesus Christ, John 10:10b (NIV)





Dr. Matthew A. Morgan

National Radio Astronomy Observatory
1180 Boxwood Estate Rd.
Charlottesville, VA. 22903
(434) 296-0217

matt.morgan@nrao.edu



PRODUCTS

Cascadable Absorptive Filters: 1mm x 1mm MMIC filters that are well-matched at all frequencies, including pass-band, stop-band, and transition-band.
- MMRL / MMRH (low-pass and high-pass)
- MMRB / MMRS (band-pass and band-stop)
- MMR3 (low-pass, higher order than MMRL series)

Contact the NRAO Technology Transfer Office for ordering information.


PATENTS

M. Morgan and J. Fisher, "Statistical Word Boundary Detection in Serialized Data Streams," U.S. Patent No. 8,688,617, April 1, 2014.

M. Morgan, "Reflectionless Filters," U.S. Patent No. 8,392,495, March 5, 2013. Chinese Patent No. 20080014266.1, July 30, 2014.



PUBLICATIONS


Invited:

E. Bryerton, M. Morgan, and M. Pospieszalski, "Ultra Low Noise Cryogenic Amplifiers for Radio Astronomy," IEEE Radio Wireless Week, Austin, TX, January 2013.

M. Morgan, "The MMIC Frontier for Radio Astronomy," URSI National Radio Science Meeting, Boulder, CO, January 2012.

M. Morgan, "Custom GaAs and InP Components for Radio Astronomy," IEEE Compound Semiconductor IC Symp., Palm Springs, CA, November 2005.



Refereed:

D. Roshi, K. Warnick, J. Brandt, R. Fisher, P. Ford, B. Jeffs, P. Marganian, M. Mcleod, M. Morgan, R. Norrod, W. Shillue, R. Simon, and S. White, "Towards the Development of a High-Sensitivity Cryogenic Phased Array Feed," URSI General Assembly and Scientific Symposium, Beijing, China, August 2014.

M. Morgan, J. Fisher, and J. Castro, "Unformatted Digital Fiber-Optic Data Transmission for Radio Astronomy Front Ends," Publications of the Astronomical Society of the Pacific, vol. 125, no. 928, pp. 695-704, June 2013.

M. Morgan and S. K. Pan, "Graphical Prediction of Trapped-Mode Resonances in Sub-mm and THz Waveguide Networks," IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 1, pp. 72-80, January 2013.

M. Morgan and S. K. Pan, "Graphical Prediction of Trapped-Mode Resonances in Sub-mm and THz Networks," 23rd Intl. Symposium on Space THz Technology, Tokyo, Japan, April 2012.

M. Morgan and T. Boyd, "Theoretical and Experimental Study of a New Class of Reflectionless Filter," IEEE Trans. Microwave Theory Tech., vol. 59, no. 5, pp. 1214-1221, May 2011.

M. Morgan, J. Fisher, and T. Boyd, "Compact Orthomode Transducers Using Digital Polarization Synthesis," IEEE Trans. Microwave Theory Tech., vol. 58, no. 12, pp. 3666-3676, December 2010.

M. Morgan and J. Fisher, "Experiments With Digital Sideband-Separating Downconversion," Publications of the Astronomical Society of the Pacific, vol. 122, no. 889, pp. 326-335, March 2010.

M. Morgan, E. Bryerton, H. Karimy, D. Dugas, L. Gunter, K. Duh, X. Yang, P. Smith, and P.C. Chao, "Wideband Medium Power Amplifiers Using a Short Gate-Length GaAs MMIC Process,"IEEE MTT-S Intl. Microwave Symposium, Boston, MA, June 2009.

E. Bryerton, X. Mei, Y. Kim, W. Deal, W. Yoshida, M. Lange, J, Uyeda, M. Morgan, and R. Lai, "A W-Band Low-Noise Amplifier with 22K Noise Temperature,"IEEE MTT-S Intl. Microwave Symposium, Boston, MA, June 2009.

M. Morgan, S. White, J. Lockman, E. Bryerton, K. Saini, R. Norrod, R. Simon, S. Srikanth, G. Anderson, and D. Pisano, "A K-Band Spectroscopic Focal Plane Array for the Robert C. Byrd Green Bank Radio Telescope," URSI General Assembly, Chicago, IL, August 2008.

M. Morgan, T. Newton, R. Hayward, and T. Boyd, "Non-Reflective Transmission-Line Filters for Gain Slope Equalization," IEEE MTT-S Intl. Microwave Symposium, Honolulu, HI, June 2007.

E. Bryerton, M. Morgan, D. Thacker, and K. Saini, "Maximizing Signal-to-Noise Ratio in Local Oscillator Chains for Sideband-Separating Single-Ended Mixers," 18th Intl. Symp. on Space Terahertz Technology, Pasadena, CA, March 2007.

Y. Tang, N. Wadefalk, M. Morgan, and S. Weinreb, "Full Ka-Band High Performance InP MMIC LNA Module," IEEE MTT-S Intl. Microwave Symposium, San Francisco, CA, June 2006.

E. Bryerton, K. Saini, M. Morgan, M. Stogoski, T. Boyd, and D. Thacker, "Development of Electronically Tuned Local Oscillators for ALMA," The Joint 30th Intl. Conf. on Infrared and Millimeter Waves and 13th Intl. Conf. on Terahertz Electronics, Williamsburg, VA, September 2005.

M. Morgan, E. Bryerton, P. Cesarano, T. Boyd, D. Thacker, K. Saini, and S. Weinreb, "A Millimeter-Wave Diode-MMIC Chipset for Local Oscillator Generation in the ALMA Telescope," IEEE MTT-S Intl. Microwave Symposium, Long Beach, CA, June 2005.

L. Samoska, E. Bryerton, M. Morgan, D. Thacker, K. Saini, T. Boyd, D. Pukala, A. Peralta, M. Hu, and A. Schmitz, "Medium Power Amplifiers Covering 90-130 GHz for the ALMA Telescope Local Oscillators," IEEE MTT-S Intl. Microwave Symposium, Long Beach, CA, June 2005.

M. Morgan and S. Weinreb, "Techniques for the Integration of High-Q Millimeter-Wave Filters in Multi-Function MMIC Modules," Microwave Journal, vol. 48, no. 5, pp. 182-196, May 2005.

M. Morgan, N. Wadefalk, and S. Weinreb, "A Wideband MMIC LNA for the 11 to 34 GHz Band," URSI National Radio Science Meeting, Boulder, CO, January 2005.

J. Schulman, V. Kolinko, M. Morgan, C. Martin, J. Lovberg, S. Thomas III, J. Zinck, and Y. Boegeman, "W-Band direct detection circuit performance with Sb-Heterostructure diodes," Microwave and Wireless Components Letters, vol. 14, pp. 316-318, July 2004.

M. Morgan and S. Weinreb, "A W-Band monolithic medium power amplifier," IEEE MTT-S Intl. Microwave Symp. Digest, pp. 133-136, Philadelphia, PA, 2003.

M. Morgan and S. Weinreb, "Octave-bandwidth high-directivity microstrip codirectional couplers," IEEE MTT-S Intl. Microwave Symp. Digest, pp. 1227-1230, Philadelphia, PA, 2003.

M. Morgan and S. Weinreb, "A millimeter-wave perpendicular coax-to-microstrip transition," IEEE MTT-S Intl. Microwave Symp. Digest, pp. 817-820, Seattle, WA, 2002.

M. Morgan, S. Weinreb, N. Wadefalk, and L. Samoska, "A MMIC-based 75-110 GHz signal source," IEEE MTT-S Intl. Microwave Symp. Digest, pp. 1859-1862, Seattle, WA, 2002.

K. Lin, H. Wang, M. Morgan, T. Gaier, and S. Weinreb, "A W-Band GCPW MMIC diode tripler," 32nd European Microwave Conference, Milan, 2002.

J. Schulman, S. Thomas, D. Chow, E. Croke, H. Dunlap, K. Holabird, W. Clark, and M. Morgan, "High frequency performance of Sb-heterostructure millimeter-wave diodes," 14th Indium Phosphide and Related Materials Conference, Stockholm, 2002.

J. Schulman, J. Zinck, S. Skeith, S. Thomas, D. Chow, E. Croke, H. Dunlap, K. Holabird, M. Morgan, and S. Weinreb, "Physics of Sb-heterostructure quantum tunneling millimeter-wave diodes," 44th Electron Materials Conference, Santa Barbara, CA, 2002.

V. Radisic, M. Micovic, M. Hu, P. Janke, C. Ngo, L. Nguyen, L. Samoska, and M. Morgan, "164-GHz MMIC HEMT doubler," IEEE Microwave and Wireless Components Letters, vol. 11, pp. 241-243, June 2001.

E. Croke, J. Schulman, D. Chow, H. Dunlap, K. Holabird, M. Morgan, and S. Weinreb, "New tunnel diode for zero-bias direct detection for millimeter-wave imagers," SPIE Intl. Symp. on Aerospace/Defense Sensing, Simulation, and Controls, Orlando, FL, 2001.

M. Morgan and S. Weinreb, "A full waveguide band MMIC tripler for 75-110 GHz," IEEE MTT-S Intl. Microwave Symp. Digest, pp. 103-106, Phoenix, AZ, 2001.

M. Morgan and S. Weinreb, "A monolithic HEMT diode balanced mixer for 100-140 GHz," IEEE MTT-S Intl. Microwave Symp. Digest, pp. 99-102, Phoenix, AZ, 2001.



Non-Refereed:

M. Morgan, "Dual-Mode Propagation in Triangular and Triple-Ridged Waveguides," Electronics Division Technical Note #218, February 2011.

M. Morgan, "Active Cascade Local Oscillator Distribution for Large Arrays," Electronics Division Technical Note #216, October 2010.

J. Fisher and M. Morgan, "Prototyping Algorithms for Next-Generation Radio Astronomy Receivers Using PXI-Based Instruments and High-Speed Streaming," National Instruments Case Study, June 2010.

M. Morgan and J. Fisher, "Word-Boundary Detection in a Serialized, Gaussian-Distributed, White-Noise Data Stream," Electronics Division Technical Note #213, October 2009.

M. Morgan and J. Fisher, Next Generation Radio Astronomy Receiver Systems, Astro2010 Technology Development White Paper, March 2009.

J. Fisher, R. Bradley, W. Brisken, W. Cotton, D. Emerson, A. Kerr, R. Lacasse, M. Morgan, P. Napier, R. Norrod, J. Payne, M. Pospieszalski, A. Symmes, A. Thompson, and J. Webber, Large Instrument Development For Radio Astronomy, Astro2010 Technology Development White Paper, March 2009.

K. O'neil, J. Lockman, J. Ford, M. Morgan, J. Fisher, and B. Mason, Comets to Clusters: Wide-Field Multi-Pixel Camera Development for the GBT, Astro2010 Notice of Interest White Paper, March 2009.

M. Morgan and J. Fisher, "Simplifying Radio Astronomy Receivers," NRAO eNews, vol. 2, no. 3, March 2009

M. Morgan, "NRAO MMIC Based Receiver Developments for the Next Decade of Radio Astronomy," Keck Institute for Space Studies MMIC Array Receivers and Spectrographs Workshop, Pasadena, CA, July 2008.

J. Fisher and M. Morgan, "Analysis of a Single-Conversion, Analog/Digital Sideband Separating Mixer Prototype," Electronics Division Internal Report #320, June 2008.

M. Morgan, "Compact Integrated Receivers Using MMIC Technology," China-US Bilateral Workshop on Radio Astronomy, Beijing, China, April 2008.

C. Chandler, W. Brisken, B. Butler, R. Hayward, M. Morgan, and B. Willoughby, "A proposal to design and implement a compact water vapour radiometer for the EVLA," EVLA Memo #74, July 2004.

R. Hayward, M. Morgan, and K. Saini, "A gain slope correction scheme for the EVLA receiver system," EVLA Memo #80, July 2004.



Dissertation:

M. Morgan, Millimeter-Wave MMICs and Applications, Ph. D. Thesis, California Institute of Technology, May 2003.