Ph.D. University of Texas, Austin.
RF and microwave circuits including: microwave and millimeter-wave power amplifiers, spatial power combining and thin film ferroelectric based frequency agile circuits.
J. Choi and A. Mortazawi, “A New X-Band Low Phase-Noise Multiple-Device Oscillator Based on the Extended-Resonance Technique,” IEEE Transactions on Microwave Theory and Technique, Volume 55, Aug. 2007 Pages:1642 – 1648
L. Schulwitz, S. Ortiz and A Mortazawi, “Packaging Method for Increased Isolation Using a Microstrip to Waveguide Transition,” IEEE Microwave and Wireless Components Letters, Volume 17, March 2007 Pages:163 – 165
J.-S. Fu, X. A. Zhu, J. D. Phillips and A. Mortazawi, “Improving Linearity of Ferroelectric-Based Microwave Tunable Circuits,” IEEE Transactions on Microwave Theory and Techniques, Volume 55, Part 2, Feb. 2007 Pages: 354 – 360
L. Schulwitz and A. Mortazawi, “Millimeter-Wave Dual Polarized L-Shaped Horn Antenna for Wide-Angle Phased Arrays,” IEEE Transactions on Antennas and Propagation, Volume 54, Sept. 2006 Pages: 2663 - 2668
J. Choi and A. Mortazawi, “Design of Push-Push and Triple-Push Oscillators for Reducing 1/f Noise Upconversion,” IEEE Transactions on Microwave Theory and Technique, Volume 53, Issue 11, Nov. 2005 Pages: 3407 - 3414
L. Schulwitz and A. Mortazawi, “A Compact Dual Polarized Multibeam Phased Array Architecture for Millimeter-Wave Radar,” IEEE Transactions on Microwave Theory and Technique, Volume 53, Issue 11, Nov. 2005 Pages: 3588 - 3594
M. Ozkar and A. Mortazawi, "Electromagnetic modeling and optimization of spatial power combiners/dividers with hard horns", IEEE Transactions on Antennas and Propagation, Volume: 53, Issue: 1, Jan 2005, Pages: 144 - 150
Jonghoon Choi, Amir Mortazawi, "Free-space power combining oscillator array for Solar power transmission," the Radio Science Bulletin, International Union of Radio Science, URSI, N0. 311, Dec 2004, Pages: 47-54