Novel and Simple High-Frequency Single-Port Vector Network Analyzer. - Mohamed Ahmed Abou-Khousa; Mark A. Baumgartner; Sergey Kharkovsky; Reza Zoughi (IEEE Trans. Instrum. Meas., 2010)

Ka-Band Vector Reflectometer Based on Simple Phase-Shifter Design. - Mohamed Ahmed Abou-Khousa; Mark A. Baumgartner; Sergey Kharkovsky; Reza Zoughi (IEEE Trans. Instrum. Meas., 2011)

Compact Ka-Band One-Port Vector Reflectometer Using a Wideband Electronically Controlled Phase Shifter. - Mojtaba Behzad Fallahpour; Mark A. Baumgartner; Arpit Kothari; Mohammad Tayeb Ahmad Ghasr; David J. Pommerenke; Reza Zoughi (IEEE Trans. Instrum. Meas., 2012)

Broadband dual varactor diode-loaded elliptical slot antenna with an orthogonal feed at K-band. - Mark A. Baumgartner; Mohammad Tayeb Ghasr; Reza Zoughi (I2MTC, 2013)

Wideband Imaging Array Using Orthogonally Fed Dual Varactor-Loaded Elliptical Slots. - Mark A. Baumgartner; Mohammad Tayeb Ahmad Ghasr; Reza Zoughi (IEEE Trans. Instrum. Meas., 2015)