1303 Yale Drive
Yardley, Pa. 19067
Home: 215-321-7052
Fax: 215-369-0254
Summary
A
seasoned staff engineer with extensive experience in designing,
synthesizing, analyzing, and developing RF/Microwave hardware such as
circuits, systems and antennas for use in cellular handheld
transceivers, military and commercial communication systems.
Accomplishments
ENGINEERING
SKILLS
- Succeeded
in implementing a temperature controlled crystal oscillators and
voltage-controlled oscillators in TDMA cellular phones.
- Solved frequency spurious problem
through analysis of frequency operation of cellular phone.
- Analyzed receiver cascade chain of
duplexer, RF filter, LNA, IF filter and IF amplifier for optimum
dynamic range of operation.
- Evaluated
and measured the characteristics of RF and IF filters, duplexers and
diplexers for possible cellular phone application.
- Trained
engineers and technicians on the operation of network and spectrum
analyzers, and in the application of S-Parameters in the design of RF
and Microwave circuits.
DESIGN PROJECTS IN RF AND
MICROWAVE ENGINEERING
- Passive filters
such as Butterworth, Tchebycheff, Bessel, Elliptic, in lumped,
distributed and cavity configuratiions.
- Lumped and
distributed directional
couplers, hybrid couplers, N-way power dividers and mixers in the
frequency range of 1 MHz to 3 GHz.
- Discrete and
think film amplifiers used in IF and RF stages; low noise, medium
power, high gain,
broadband, narrow band, wide dynamic range and all in the frequency
range from 10 KHz to 6 GHz.
- Antennas such
as quarter-wave end
fed monopole, center fed half-wave, double dipole standard gain at
cellular and PCS frequencies.
RESEARCH
AND PROBLEM SOLVING IN RF AND MICROWAVE SYSTEMS
- Analysis of
cross talk in multi-layered PC boards with edge and broadside coupled
microstrip lines
- Method of
determining interference
from internal transceiver spurious generated signals effecting
performance of receiver portion of the transceiver.
- Utilizing
software CAE programs such
as MICROWAVE SOFTWARE, HP ADS, ESSOF, APPCAD, WINNEC PRO, EZMATCH,
MATHCAD, and EXCEL for simulation of RF and Microwave circuits and
systems to evaluate individual and cascade performance.
Employment
Motorola
Inc.
November 1998 to August 2002
Philips
Consumer Communications R&D Labs
October 1997 to November 1998
AT&T
Consumer Products R&D Labs/Lucent Technologies
Inc.
June 1991 to October
1997
International
Mobile Machines, Inc.
December 1987 to June 1991
Amplifonix
Inc.
June 1985 to
December 1987
General
Atronics - Magnavox
October 1978 to June 1985
Optimax,
Inc.
1976
to 1978
Aydin-Vector
Hybrid Division
1974 to
1976
Optimax,
Inc.
1970
to 1974
General
Electric
1968
to 1970
C-Cor
Electronics
1961 to 1968
Education
Graduate
Studies in Mathematics, Penn State University
B.S.E.E., Valparaiso Technical
Institute
Designing Antennas for Cellular
Phones, Microwaves & RF, May 1999
Bit
Error Probabilities Relate to Data-Link S/N,
Microwaves,
Nov. 1978
Quick Design of Symmetrical
'T' and 'H' Pads,
EDN, July 1968
Nomograph Designs Resistive
Pi Networks,
EDN, Nov. 1967
Seven
(7) U.S. Patents
Mobile
telephony standards converter - US06181951
"An adapter/converter circuit converts transmissions by a mobile
telephone built for one standard (e.g., PCS) from the telephone
transmit/base station receive frequency of that one standard to the
telephone transmit/base station receive frequency of another standard
(e.g., cellular), and converts."
Low voltage
variable gain amplifier with feedback - US0605203
"An amplifier with negative feedback, disposed in an integrated circuit
arrangement, comprises an input amplification stage, configured to
receive an input signal. A feedback stage configured to receive the
output signal provided by the amplification stage, and provide a
corresponding feedback..."
Dual band
cellular/PCS transceiver - US05974302
"A transceiver operable in both the cellular and PCS frequency bands
which uses a single voltage controlled local oscillator in an
intermediate frequency stage for both the cellular and PCS signals. The
oscillator is operative for upconverting transmitter signals and
downconverting receive signals..."
Fixed dual
frequency band antenna - US05963170
"A fixed dual frequency band antenna for a dual frequency
band radio transceiver where the two frequency bands are not
harmonically related. The antenna includes a straight radiating antenna
portion terminated by a helical wire radiating antenna portion, with
the total electrical length of the..."
Channel usage
monitoring arrangement for base station - US05890056
"In one embodiment the present invention includes an
arrangement for monitoring RF signals for use in a base station, said
arrangement comprising a demodulation circuit operable to demodulate RF
signals, an RF signal transceiver, and a controller. The RF signal
transceiver is operable to transmit..."
Dual
frequency band antenna system - US05717409
"A dual frequency band antennas system where the two frequency bands
are not harmonically related includes first and second antenna
sections. The first antenna section comprises a straight rod, with the
length of the rod being at least one quarter wavelength at the center
frequency of the lower of..."
Band-pass
filter and support structure therefor - US04940956
"A band-pass reject filter in which the filter housing which comprises
the resonant cavity is connected within an annular wall that is
supported at each end by an end plate..."
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