Dr. Preetham Kumar’s fields of expertise include digital signal processing, power dividers, the design of novel noise reducing components for cellular communications, and the design of spherical antennas that produce array beams used in therapeutic cancer treatments. He has a broad array of impressive publications in international conferences and refereed publications such as the IEEE Transactions on Antennas and Propagation. Dr. Kumar has also served as a peer reviewer for journal publications and research grants in his area. His research in RF, Wireless Communications and Microwave Engineering has resulted in eleven refereed publications in journals and conference proceedings from international symposia since his appointment in 1999. Many of these papers have been co-authored with students from CSU Sacramento. Clearly, Dr. Kumar engages the students in all aspects of his research projects, and is an excellent role model.

Dr. Kumar continues to supervise several graduate students in their thesis/project work in the Communications and Signal Processing area. These students have secured excellent career positions in companies such as Ball Aerospace, HP, NEC, Intel and Powerwave as a result of their accomplishments under Dr. Kumar's supervision. Since 1999, he has obtained equipment and software grants from industry in excess of $500,000 to support his research activities.

Dr. Kumar’s present research is focused on antenna arrays and their increased resolution in the array beam. The research objective is to develop focused electromagnetic beams for application to the therapeutic treatment of deep-seated cancerous tumors. Another facet of his research focuses on the design and development of component designs for wireless communications. This will reduce noise levels in amplifiers and oscillators and lead to efficient and clear cellular communications. Dr. Kumar has served as a faculty advisor for E&EE students at the annual CSU Research competition. Students are very appreciative of his knowledge and professionalism and consider him to be an asset to our program.