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B.S.E.E.
Mr. Gavrilovich obtained a solid technical foundation at the University Illinois
at Urbana-Champaign where he received a bachelor of science degree in electrical
engineering. He pursued a curricula related to telecommunications and RF and completed
courses such as Digital Communications, Analog Communications, Digital Signals
and Systems, Probabilistic Methods, Radio Communication Circuits, Signal and System
Analysis, Lines Fields and Waves, and Analog Filter Design. In addition to attaining
a firm understanding of engineering principles, he also began developing an appreciation
for the challenges of product design and development through the practical engineering
offered at the University. For example, Mr. Gavrilovich worked with two other
students in a rewarding senior project lab where their small student team elected
to design and build a spread spectrum radio. In addition to applying engineering
theory to design RF, analog, and digital circuits, the small team purchased components,
anticipated lead times, and built and tested circuits.
Electrical Engineer
After graduating from U of I, Mr. Gavrilovich joined Motorola as an RF design
engineer. Working in the Radius division, he designed, built and tested analog
and RF circuits for the GP300 two-way radio. In addition to other accomplishments,
Mr. Gavrilovich successfully reduced spurious emissions and increased RF power
output by significantly modifying the printed circuit board layout of the radio.
Copper traces, components and layers were carefully repositioned, analyzed, simulated,
and implemented in hardware to develop an efficient board layout. In addition
to electrical circuit development, Mr. Gavrilovich also implemented cross-functional
solutions. For example, he engaged mechanical engineering principles to overcome
design obstacles by developing a heat transfer device that efficiently reduced
the internal temperature of critical components in an RF amplifier module. Radio
size restrictions resulted in a radio architecture where the amplifier module
was positioned in a parallel plane opposite the radio chassis and isolated from
any significant heat sink. While accommodating large manufacturing tolerances
within the radio, Mr. Gavrilovich’s device directed heat from the amplifier
to the chassis. The mechanical solution increased the expected life of the power
amplifier and enabled the two-way radio to meet ETSI standards and other strict
specifications.
Mr. Gavrilovich continued his engineering career at Motorola in the Wireless
Data Group where he developed the transmitter circuitry for a 2.4 GHz PCMCIA wireless
LAN card. Since the project was developed prior to the adoption of the current
802.11 standard, a proprietary protocol was utilized and the design team was engaged
in identifying and overcoming novel issues associated with such a project. Because
of the early timing of the project, very few RFICs (radio frequency integrated
circuits) operating in the 2.4 GHz frequency range were commercially available.
In addition to implementing many functions using discrete components, Mr. Gavrilovich
worked with IC manufacturers to develop small devices that strategically integrated
RF functions while maintaining the appropriate isolation between the circuits
and conforming to the PCMCIA form factor.
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