Electrical engineering student wins Best Student Paper Award at IEEE conference

A graduate student in the Department of Electrical and Computer Engineering at Texas A&M University recently won a Best Student Paper Award at the 2011 Midwest Symposium on Circuits and Systems in Seoul, Korea.

Photo of Hemasundar Mohan Geddada

Hemasundar Mohan Geddada -- with advisor Dr. Jose Silva-Martinez and Stewart S. Taylor, a senior principal engineer at Intel Corp. -- won the award and a cash prize for their paper, “Inductorless Wideband CMOS LNAs with Nonlinearity Cancellation.”

In their paper, the researchers describe a highly linear LNA for future radio platforms that have to cover multiple standards, support MIMO (multiple input multiple output) operation, is inexpensive and deals with a variety of co-existence issues. CMOS technology and the receiver architecture will enable the cost-effective implementation of the system.

Their paper presents a robust derivative superposition technique to improve the linearity performance of wideband low noise amplifiers (LNA).  It was validated with two LNA designs in 0.18μm CMOS technology by improving the IIP3 of a single-ended resistive terminated LNA by more than 10dB.

Geddada was born in India. He earned his bachelor’s degree in electrical engineering from the Indian Institute of Technology in Kharagpur, India.

Since 2007, he has been working towards his Ph.D. in electrical engineering under the advisement of Silva-Martinez in the Analog and Mixed Signal group. His research interests include highly linear radio front ends and low power, high efficiency data converters. Since 2009 he has been working on SRC sponsored low power highly efficient sigma-delta converters at Texas A&M.

Geddada has been with Radio Integration Research (RIR) group of Intel as a graduate research intern in the summers of 2009, 2010 and 2011, where he worked on highly linear radio front ends. His electronic letter on a robust linearization technique for low noise amplifiers was second most accessed in February 2009. He has four IEEE publications.