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Expert in Design in Analog Hardware, RF/Microwave, Medical Equipment & PCB Design
Available for your Consulting and Expert Witness Needs
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Summary of Expertise:
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Listed with other top experts in: |
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Expert has been an analog and system designer for the better part of 25 years. Expert has worked in RF and microwave designs (both commercial and government) requiring filtering, amplification and interconnection techniques from 200 MHz to 30 GHz. He has developed sensors which are capable of detecting tens of femtoamperes at KHz bandwidths, power converters (both AC-DC and DC-DC) ranging from 2-3 Watts to 50 KW, optoelectrical front-ends capable of detecting chemiluminescent emissions in the nanoseconds with phase resolution to better than 0.1 degree at 50KHz, invasive medical equipment with extremely strict FDA requirements to EMI and leakage requirements, performed detailed math analysis in both time and frequency domains for control loop (feedback) and forward loop dynamics, PCB layout associated with signal integrity issues using manufacturer's substrate/dielectric data, etc. Recently, Expert has had much to do with highly advanced A/D and D/A devices. During a recent design proposal (and acceptance!), he showed how to implement a 10 bit 2GHz DAC from Euvis (California-based company) for ETEC and Applied Materials subsidiary. His job was to look and characterize all of the code transitions, INL and DNL properties of this DAC as it applied to controlling an electron beam gun assembly for IC mask generation. This effort required getting into the semiconductor physics, interaction with the ASIC designer and interfacing this with the client (ETEC). Heat dissipation was a major concern as p-HEMT fabrication technology (for the DAC IC) has a thermal “memory” which affect phase and precision. This and other effects due to the extremely high conversion speed and precision requirements, is not generally known and many of the findings are now proprietary to Euvis and ETEC (signed IP agreement last year). Power Conversion: Power conversion is something Expert has done from a few Watts to 10's of KWs. Specifically, Expert has designed buck, boost, flyback, forward and SEPIC switchmode designs. These designs have been as simple as using standard Linear Technology-like ICs and “cookbooking” it to discrete topologies which had to be implemented due to safety constraints and/or client specified dynamics not amenable to the “cookbook” approaches (specifically, the medically invasive tissue ablation designs). Many of the later designs were for high frequency converters (smaller reactive components) with high efficiency as they were battery operating products and maximizing battery lifetime is critical to the product being profitable. Low Noise Analog: Down to the shot-noise limits with the aid of LN cooling (77K) HgCdTe & other Cadmium salt IR and near IR detection front-ends. Tools: Cadence's PSPICE & SpecctraQuest SI, AWR & CST Microwave Office tools for 2-D & 3-D analysis solver, respectively and OrCAD's schematic Capture and Allegro layout. Waterloo Software's MAPLE and Visual Solutions' VisSim numerical simulator for the analytically intractable problems.
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Show Secondary and Basic Areas of Expertise | Localities:
Expert may consult nationally and internationally, and is also local to the following cities: Boston, Massachusetts;
Worcester, Massachusetts;
Springfield, Massachusetts;
Lowell, Massachusetts;
Cambridge, Massachusetts;
Brockton, Massachusetts;
New Bedford, Massachusetts;
Hartford, Connecticut;
Manchester, New Hampshire;
and Providence, Rhode Island.
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Degree |
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Subject |
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Institution |
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Honors |
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2009
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Post Ph.D. Curriculum
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Engineering Science
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MIT
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OCW Coursework and lectures
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1985
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Ph.D.
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Engineering Science
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Clarkson University
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Presidential Scholar (3.85/4.00)
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1977
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MSEE
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Electrical Engineering
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Northeastern University
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Cum Laude (3.50/4.00)
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1973
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BSEE
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Electrical Engineering
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Clarkson College of Technology
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Cum Laude
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| Years |
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Employer |
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Department |
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Title |
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Responsibilities |
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1996 to 2009
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ALFA, LLC
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Engineering
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Proprietor
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Engineering Consultant in analog hardware, RF/microwave, switchmode power, medical instruments, automotive analysis/design, electro-optics, DFM, DFT, mathematical analysis and advanced PCB analysis & design.
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1992 to 1996
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Baird Corporation
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Engineering
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Senior Physicist & Engineer
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Worked on atomic spectrometers with ultra-high vacuum and ultra-low electronic noise detection hardware.
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1988 to 1992
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Raytheon Company
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Equipment Division
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Senior Project Engineer
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Worked on the Trident Missle guidance system, CCD camera guidance system and integrated electro-optical interconnects used in the the PMEL advanced digital processor system.
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1986 to 1988
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MIT Lincoln Laboratory
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Sensor Group
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Senior Physicist & Engineer
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Advanced analog real-time signal processor hardware.
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Associations/Societies
IEEE, OSA, SIAM, MENSA
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Professional Appointments
Senior Consultant to Pollak-Stoneridge (automotive parts)
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Awards/Recognition
Presidential Scholar (4 semesters); Who's Who in the East in Science & Technology;
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| Publications: |
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Publications and Patents Summary
He has authored 25 trade publications, two books and two patents.
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Selected Publications and Publishers
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- Presentation to Kaman Aerospace Corporation
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- ELECTRO International Conf.
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- Presentation for Division of Optical Sciences, Naval Research Laboratory
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- Annual Meeting of the Optical Society of America
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| Selected Consulting Examples: |
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He has designed and implemented the next generation of high power National Grid intrument testers for high power transformers and gap switchers. These instruments have 6-8 times better numerical measurement resolution over the next best instrument for testing residential/commercial power line high powered reactors.
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He developed an optimal mathematical modeling prototcol software tool for the Ford Motor Company and Mercedes-Benz car companies to determine the best passive component (resistors) for voltage division used by the CAN bus prototcol. This optimization tool model saved both car companies 20-30 million dollars per build year in replacement parts, increased yield and up-front building material costs.
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He has developed some of the most robust and efficient high power converters for the medical tissue ablation market known. Cardiac, bone and breast tissue RF ablation units normally operate at 87% efficiency. Designs done by this consultant, on average, exceed 95% at rated power and also have a lower amount of EMI/RFI regulatory problems for the V&V phase of the product development.
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He has developed full high powered Ultracapacitors testers for the robotic and automotive industries. This custom Ultracapacitor tester proved that the Ultracapacitor is better than rechargeable batteries in terms if aggressive discharge/charge speed, endurance and operating costs for the applied vehicular industry.
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Developed a novel shaft torque fluxgate monitoring sensor and recorder used by the John Deere company for knowing when the heavy equipment's drive line has been stressed beyond it's rated load. Designed system uses harmonic analysis to very accurately determine just how much torsional stress the drive line has experienced.
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Recent Client Requests:
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Intota expert expert for consulting on RF impedence matching on medical equipment.
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Click the green button above to contact
Expert for a free initial screening call regarding your expert consulting needs.
Expert is available for consulting to corporate, legal and government clients.
Remember, your initial screening call to speak with
Expert is free.
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Recent Litigation Client Requests:
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Expert for consulting on RF technology litigation case.
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Expert in RF Technology for litigation case involving false claims of machine to tighten skin.
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Click the green button above to contact
Expert for a free initial screening call regarding expert testimony,
litigation consulting and support, forensic services, or any related expert witness services.
A few litigation needs include product liability, personal injury, economic loss, intellectual property
(patent, trademark, trade secret, copyright), and insurance matters. Remember, your initial screening
call to speak with
Expert is free.
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| Language Skills: |
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| Foreign Language |
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Description |
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English
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He has a native command of the English Language
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German
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Moderate command for conversational German.
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Basic multidisciplinarian approach to problem solving is extremely useful to client companies (both large and start-up) for quickly finishing tough technical designs with all of the follow-through documentation necessary for DFM and DFT operation. Designed to be a "commando" type design resource to tackle and finish product design and delivery to the client at the lowest internal cost. basically a turnkey design service.
Click the green button above to contact
Expert for a free initial screening call regarding your marketing research, industry research, and company
research needs. For research needs involving multiple experts or secondary research,
a Research Director can be assigned to coordinate the work into a custom report for you as a potentially quicker
and more cost effective alternative to doing this work yourself or hiring a boutique consultancy.
Remember, your initial screening call to speak with
Expert is free.
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| Additional Skills and Services: |
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Training/Seminars
Training seminars to technical employment agencies. Given advanced technical presentations to Kaman Aerospace Corporation, Raytheon, MITRE and talks at two INNS (International Neural Network Society) Meetings.
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Supplier and Vendor Location and Selection Have a well-used and reliable "rolodex" of contract manufacturers, parts distrubutors, representatives for anything in hardware, subsystem and full system engineering testing and builds. Have a full and reliable network of complimentary consultants in firmware, software and mechanical packaging.
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Education
