Engineer Design
Resume:
CRAIG D. BOHREN
Mesquite, Texas 75181
( Cell 972-***-**** ( ********@*****.***
PROFILE
A U.S. Army Veteran who is a hands-on results-oriented engineer with
experience in system engineering, system testing, and application
engineering. Experience with RF/analog system design, system integration,
circuit design, WLAN 802.11abgn circuit design and test software
integration. Both a team leader & contributor with a customer focused
attitude, able to bring innovative technical contributions resulting in
successful product developments with customer satisfaction.
TECHNICAL SKILLS
Key Qualification
. RF Circuit Design Experience
o PCB Layout of LNA's, PA's, Oscillators, Frequency synthesizers,
Radio Systems, RF Layout, Digital Circuit layout, RF component
selection
. RF System Planning Experience
o AM receivers, FM receivers, BPSK receivers
o Cascaded Noise Figure calculation and Noise Figure measurement
experience
o Receiver sensitivity, dynamic range measurement and calculation
experience
o Antenna system measurement
o Intermodulation distortion measurement and calculation
experience
o IP3 measurement and calculation experience
o Creation of System frequency plan
o FM discriminator experience (FM demodulation)
o PSK demodulation experience (Costa's BPSK demodulator)
o WLAN 802.11 abgn
o Bluetooth
. Frequency Synthesizer Phase Lock Loop Design and Test Experience
o Design and test of PLL Loop filters both Active and Passive
filters
. Transmitter Experience
o Testing of Power Amplifiers in Linear and Pulse mode At VHF,
UHF, microwave frequencies
. Design of Filter Circuits
o Active Filter circuits Lowpass and Bandpass Filters
o Passive Filter circuits Lowpass and Bandpass
. Design of Power Supply Circuits
o Linear and Switching power supply circuits
. FCC qualification for radio products
o Completed. FCC qualification for two RFID radio products
. Power amplifier matching and characterization for GSM and PCS 1900
Communication standards
o Characterized with IC design engineers IC power amplifiers for
GSM and PCS.
o Tests included pulse power measurement, PAE, IP3, and 1 dB
compression
. Wrote application notes for customer RF transmitter and receiver
designs.
o Published application note "Designing with TRF6900 Single-Chip
RF Transceiver" (available at www.ti.com).
o Wrote Radio system and board level test procedures
. Soldering experience with PCB components as small as 0201 size.
EDUCATION
Bachelor of Science - Electrical Engineering
University of Texas, Arlington, Texas
PROFESSIONAL LICENSE: Associate CET, 1992.
FCC Amateur Radio Technician Class License KG5EHF, Oct. 2014
COMPUTER/TECHNOLOGY BACKGROUND
Electronic Test Equipment: Network Analyzer, Spectrum Analyzer,
Oscilloscope, Vector Signal Analyzers, WLAN test, Bluetooth test, Vector
Signal Generators, Radio system tests
. Hardware/Software: Agilent ADS, Pspice, Orcad, Mentor Graphics WG2000,
Pads, Allegro, Visio, Word, Excel, MathCad, Zuken PCB software
. Additional Training: DSP with out Tears, C++, Besser Short Range
Wireless Networks, Analog Integrated Circuits, Signal Integrity for
High Speed Digital Design, PSpice, MathCad, VOLTE seminar,
PROFESSIONAL EXPERIENCE
Contract RF Characterization Engineer
Texas Instruments Inc. Dallas, Texas June
2014 - Sept 2014
RF characterization of mixer, amplifier IC's for
Gain, Noise Figure, IP3, IP2, 1 dB compression,
Spurious, phase noise, isolation, current, S parameters.
RF Designer
BlackBerry (RIM), Irving, Texas
Jan. 2013 - Nov. 2013
Design and Test of WLAN 802.11bgn / Bluetooth System
Selection and matching of RF Bandpass Filter
PCB Layout approval of WLAN/Bluetooth Radio
Integration of test software to WLAN radio API commands
RF Engineer
April 2006 - Dec. 2012
Independent Contractor
Texas Instruments Inc., Dallas, Texas
Test DVB-H IC to MBRAI specification experience. RF test of DVB-H receiver
IC. RF test of WLAN (802.11abgn) and Bluetooth IC, WL4, WL6, WL7 WL8. 2nd
level customer support for WLAN, Bluetooth and GPS IC solutions.
Responsible for all customer Schematic and hardware PCB layout reviews.
Write application notes on WLAN test solutions and PCB layout guidelines.
FCC Part 15 pretest. RF / Analog system design.
RF ENGINEER 2005 - April
2006
Independent Contractor
Motorola, INC., Fort Worth, Texas
RF circuit design and characterization experience. Circuit design, Test and
Characterization of WIMAX radio system at 3.5 GHz. Test of Radio System
Transmitter and Receiver.
RF Engineer
1998 - 2005
Texas Instruments Inc.,Dallas / Plano, Texas
RF circuit design and characterization experience. Test and characterize
circuits for FCC Part 15 acceptance for RFID systems. Training of junior
engineers/technicians in PCB layout techniques, test equipment. Handled
power amplifier matching and characterization for GSM and PCS 1900. Wrote
application notes for customer RF transmitter and receiver designs, as well
as test plans for RF evaluation boards. Designed PLL loop filters (active
and passive) for synthesizer IC's. Analog filter design LC and Active
filter. Designed RF IC test/evaluation PCB boards and demo box circuits.
Have written test procedures for demo boxes. Circuit design for RFID
Hardware Systems/PCB Layout.
o Designed RS 232/RS485 Interface Circuitry.
o Designed power supply boost converter for USB applications.
. Characterization and FCC type testing for RFID Systems.
o Antenna system measurements for FCC qualification.
o Published user guide for TRF6900 and TRF4900.
o Published application note "Designing with TRF6900 Single-Chip
RF Transceiver"
. Design RF IC test/evaluation PCB boards.
o Designed test evaluation boards for IC Power amplifiers.
o Designed test evaluation boards for TRF6900 transceiver.
o Designed test evaluation boards for Active filter for Bluetooth
application.
. Troubleshoot and redesign customer RF system boards.
o Evaluated customer PCB artwork, using TI IC's, and suggested
corrections.
o Designed test evaluation boards for IC Power amplifiers.
o Characterized Bluetooth Radio transceiver IC.
Senior RF Engineering Technician 1992-
1997
Andrew Wireless Products Group, Richardson, Texas
Worked on Characterization and system integration of Spread Spectrum Radio
(CDMA) systems. Frequency synthesizer design experience (PLL) active and
passive loop filters. PCB layout of RF receiver IC and Power Amplifier
breadboard PCB with Pads PCB software. Approved system RF PCB layouts
completed by PCB designer. Wrote PCB and radio system level test plans.
Provided receiver and power amp matching circuit design. Held management
responsibility for other project technicians. Designed and built test
fixtures for board and system test.
Contact this candidate