November 1, 2005 – nGimat, a leading manufacturer and innovator of engineered nanomaterials, today announced the formation of a scientific advisory board for its RF Wireless business unit.
“Our RF Wireless business unit is developing promising new technologies and bringing next-generation products to market including our recently launched family of BST phase shifters,” said Andrew Hunt, CEO of nGimat. “Our RF Wireless board provides valuable insight into current and future industry needs and collaboration on the most effective applications of our proprietary technology to develop solutions that address wireless industry opportunities.”
The nGimat RF Wireless Science Advisory Board members include:
- Mark Allen, Regents Professor and J.M. Pettit Professor, School of Electrical and Computer Engineering, School of Chemical and Bioelectrical Engineering, Georgia Institute of Technology. Allen has authored numerous books on Materials and Applications and is a technology consultant to government institutions as well as industry leading corporations.
- Steve Kenney, Associate Professor, School of Electrical and Computer Engineering, Georgia Institute of Technology. In addition to his distinguished university career and wireless industry consulting practice, Kenney has held technology leadership positions at leading wireless industry companies including Spectrian, Pacific Monolithics and Scientific Atlanta.
- John Papapolymerou, Associate Professor, School of Electrical and Computer Engineering, Georgia Institute of Technology. Papapolymerou is a prolific author of scientific papers as well as the author of a book on RF MEMS. He is a frequent speaker at wireless industry conferences and serves as a consultant to industry leading companies including Raytheon and Motorola.
About nGimats RF Wireless Business Unit
nGimat’s RF wireless products result from its unique capability to deposit barium strontium titanate (BST) dielectric as nanostructured coatings on commercially-viable sapphire substrates. Products under development include: 1) tunable filters that reduce size, save power and improve flexibility for cell phones and other RF mobile devices, and 2) phase shifters that are designed to enable beam steering for wireless local area network (WLAN) systems for interference mitigation.
Historically, complex oxides in the RF domain, such as BST, have not been applied to commercial products due to the poor performance of the bulk materials and the difficulty in producing high-quality thin films. nGimat has developed its proprietary CCVD Process for depositing BST dielectric coatings that provide the building blocks for a host of microwave and RF broadband devices. BST is a complex dielectric material comprised of three different elements (as listed in the name). BST is valuable because of its ability to hold a large amount of electrical charge due to its high dielectric constant. BST has the unique ability to change its dielectric constant with an applied DC voltage, a significant benefit over existing dielectrics such as silicon dioxide. nGimat has also developed thin film structures and engineered nanomaterials that enable control voltages of less than 10v.
nGimat’s use of BST enables frequency-agile devices with superior electrical performance with regard to loss, noise and tunability. It has been known for at least 10 years that BST is a superior material as compared to silicon or GaAs in terms of its electrical properties, specifically its ability to change dielectric constant as a function of applied DC voltage without leakage current. nGimat’s significant advantage is the fact that the CCVD Process can deposit BST thin films at lower costs and with better material properties, due to additional nanolayers, compared to other manufacturing processes.