TAMU ECE Senior Design project (2010-2011) by Peter Erskine, Jeremy Joachim, and Josh Yang
Friday
Senior Design: A Dynamometer for Polymorphic Antennas
TAMU ECE Senior Design project (2010-2011) by Eric Estes, Samuel Lee, and Robert Burgess
Friday
Monday
Award!!!
Jeffery S. Jensen (TAMU Undergraduate and de facto HRG member) won the runner-up position at The Institute of Engineering and Technology (The IET) Present around the World Competition (PATW) held in Austin, TX on April 29th, 2010. Jeffry's presentation focused on contributions to his senior design project using software defined radios and reconfigurable antennas to create adaptive wireless systems. His project (with Ashar Mirza Rizqi and Tom Matthews) was one of two senior design groups working with Prof. Huff during the 2009-2010 academic year. He will travel with the winner (Kyle Fernald from UT) to compete in the Americas competition held in Ottawa, Canada (and hopefully on to London, England for the final competition).
Congratulations and good luck!
Congratulations and good luck!
Award!!!
Prof. Gregory H. Huff has received the 2010 Donald G. Dudley Jr. Undergraduate Teaching Award from the Institute of Electrical and Electronic Engineers (IEEE) Antennas and Propagation Society (AP-S). He is recognized “for creative and innovative approaches to electromagnetic education, undergraduate research experiences, and student mentoring.”
Congratulations!!!
Congratulations!!!
Wednesday
Publication Update
G. H. Huff and J. McDonald, “A spherically integrated inverted F-antenna (SIFA),” IEEE Antennas Wireless Propag. Lett., vol. 8, June 2008.
Abstract—This letter proposes a spherical inverted-F antenna (SIFA). The radiating element of this antenna is conformally integrated onto one quadrant of a metal-coated foam sphere. The substrate has been recessed into the spherical volume to remain conformal to the spherical host chassis. Design variables are provided in spherical coordinates to describe the structure; this includes the ground, patch, and a spherical foam shell that physically supports the patch and acts as its substrate. Measured and simulated results are presented for a design operating around 400 MHz.
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=04926165
Abstract—This letter proposes a spherical inverted-F antenna (SIFA). The radiating element of this antenna is conformally integrated onto one quadrant of a metal-coated foam sphere. The substrate has been recessed into the spherical volume to remain conformal to the spherical host chassis. Design variables are provided in spherical coordinates to describe the structure; this includes the ground, patch, and a spherical foam shell that physically supports the patch and acts as its substrate. Measured and simulated results are presented for a design operating around 400 MHz.http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=04926165
Tuesday
Publication Update
G. H. Huff, P. Walters, J. McDonald and D. L. Rolando, “A reconfigurable colloidal dispersion dielectric resonator antenna,” in press IEEE Antennas Wireless Propag. Lett., accepted for publication March 2010.
The vertical displacement of a columnar fluidic colloidal dispersion is examined as a frequency reconfigurable dielectric resonator antenna. The coaxial probe-fed structure has tunable impedance properties that are reversibly controlled by adjusting the columnar height of the dispersion. Colloidal Barium Strontium Titanate was dispersed in hydrotreated naphthenic oil and placed at several heights into a section of polycarbonate tubing over an Aluminum ground plane to demonstrate the impedance properties of this structure. Measured, simulated, and calculated results for a range of heights that corresponded to single-mode operation are provided for a design operating between 2.5 GHz and 4.5 GHz.
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5438799
The vertical displacement of a columnar fluidic colloidal dispersion is examined as a frequency reconfigurable dielectric resonator antenna. The coaxial probe-fed structure has tunable impedance properties that are reversibly controlled by adjusting the columnar height of the dispersion. Colloidal Barium Strontium Titanate was dispersed in hydrotreated naphthenic oil and placed at several heights into a section of polycarbonate tubing over an Aluminum ground plane to demonstrate the impedance properties of this structure. Measured, simulated, and calculated results for a range of heights that corresponded to single-mode operation are provided for a design operating between 2.5 GHz and 4.5 GHz.
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5438799
Publication Update
G. H. Huff and S. Goldberger, “A coaxial stub microfluidic impedance transformer (COSMIX),” IEEE Microw. Wireless Compon. Lett., vol. 20, pp. 154-156, March 2010.
This letter proposes a coaxial stub microfluidic impedance transformer and discusses its design, theory, and operation. Electrostatically-stabilized colloidal dispersions using non-aqueous fluids facilitate its electromagnetic agility by altering their effective medium properties. Theoretical, simulated, and measured results at 400 MHz, 800 MHz, and 1.6 GHz using 0%, 25%, and 50% volume fractions of colloidal barium strontium titanate dispersed in a low-loss severely hydrotreated mineral oil are included to demonstrate the operation of the device. Simulated results for non-spherical nanoparticles are included to show the potential of different material systems.
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5406008
This letter proposes a coaxial stub microfluidic impedance transformer and discusses its design, theory, and operation. Electrostatically-stabilized colloidal dispersions using non-aqueous fluids facilitate its electromagnetic agility by altering their effective medium properties. Theoretical, simulated, and measured results at 400 MHz, 800 MHz, and 1.6 GHz using 0%, 25%, and 50% volume fractions of colloidal barium strontium titanate dispersed in a low-loss severely hydrotreated mineral oil are included to demonstrate the operation of the device. Simulated results for non-spherical nanoparticles are included to show the potential of different material systems.
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5406008
Pictures from the PECASE cerimony...
See the full article... http://www.whitehouse.gov/blog/2010/01/14/honoring-scientists-and-engineers
"Presidential Early Career Award for Scientists and Engineers (PECASE), the highest award bestowed by the U.S. Government upon scientists and engineers in the early stages of their independent research careers"
In the East Room of the White House...
At the ceremony in the Roosevelt Theater...
This was an incredibly humbling experience, and I am extremely honored to have been deemed worthy for this recognition. The hard work has just begun.
"Presidential Early Career Award for Scientists and Engineers (PECASE), the highest award bestowed by the U.S. Government upon scientists and engineers in the early stages of their independent research careers"
The summary...
(original photo is without the overlaid zoom-in of me)
(original photo is without the overlaid zoom-in of me)
In the East Room of the White House...
At the ceremony in the Roosevelt Theater...
This was an incredibly humbling experience, and I am extremely honored to have been deemed worthy for this recognition. The hard work has just begun.
Sunday
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