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ECE Papers Among 100 Most Popular in IEEE

Last month, a faculty member and his three Ph.D. students in the Department of Electrical and Computer Engineering at Texas A&M University, published two IEEE Journal of Solid-State Circuits papers which were among the top 100 most-accessed documents in IEEE’s main publications database IEEEXplore.
The papers were titled “A 1-V +31dBm IIP3, Reconfigurable, Continuously Tunable, Power-Adjustable Active-RC LPF” and “A Low-Power, Linearized, Ultra-Wideband LNA Design Technique.” They were written by Dr. Edgar Sánchez-Sinencio, the TI Jack Kilby Chair Professor in the department, along with Hesam A. Aslanzadeh, Erik J. Pankratz and Heng Zhang.
IEEEXplore’s top 100 list draws upon all disciplines within electrical/computer engineering and computer science, including topics ranging from algorithms, signal processing and networking to power systems, electromagnetic and solid-state circuits.
Their filter paper proposes a highly reconfigurable and continuously tunable baseband low-pass filter for wireless/wireline applications and also develops a new biquad stability metric, Minimum Acceptable Phase Margin (MAPM), to facilitate designing for robust filter stability over power/frequency adjustment.  The proposed low-pass filter operates off of a low-voltage (1-V) supply and has a reconfigurable response, widely tunable cut-off frequency, selectable filter order, and adjustable power. The active-RC filter achieves a continuously adjustable cutoff frequency with a novel Continuous Impedance Multiplier (CIM) circuit combined with a discrete capacitor array. This new approach obtains continuous tunability yet still provides the high linearity of active-RC filters.
The LNA paper explores a practical linearization technique for high-frequency, wideband applications using an active nonlinear resistor. The linearization technique is applied to an ultra-wideband low-noise amplifier (UWB LNA). Experimental validation of the linearization scheme demonstrates factor of two improvement in linearity over a broad frequency range (2.5–10 GHz). The technique furthermore obtains a robust linearity improvement over process and temperature variations. The proposed UWB LNA achieves excellent linearity with much less power than the prior published state-of-art UWB LNAs.
To see the top 100 most accessed documents in February 2009: visit http://ieeexplore.ieee.org/Xplore/toparticles.jsp.