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 Expert  722724

Expert in EMC/EMI, RF/Microwave, Hardware, Firmware, Product Development

Available for your Consulting and Expert Witness Needs

Arizona (AZ)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has expertise in the design of biomedical imaging products, providing patient safety and comfort regarding ISO and FDA requirements. He is an Adjunct Professor teaching on biomedical instrumentation including cardiac, ultrasonic equipment, pressure and flow measurements. He has magnetic flux and sensors expertise. He is familiar with biomedical equipment for measurement and stimulation.

He has experience in medical imaging product design and certification regarding FCC, CE, UL, and the FDA. He is familiar with the technical file and the 510K preparations regarding the medical regulation requirements and the requirements of the notified body. He has performed full EMC/EMI, compliance testing, and prepared and sign Declarations of Conformity.

Expert has successful design experiences in various medical and communication electronic products combining analog and digital circuitry, RF and microwave stages and apparatus, microprocessor equipment, and FPGA based designs. He is familiar with system and component design concepts and has DSP/FPGA firmware and software expertise. He is experienced in medical device design regarding isolation and precise analog front ends design for low noise data acquisition. He has worked on communication data encoder/decoder stages including FEC, data slicing, filtering, adaptive filtering, RF/microwave circuitry for wireless data transmitting/receiving, spectrum management, and data conditioning.

Expert is familiar with microstrip technology and the design of microwave filters, mixers, amplifiers, PLLs, and microstrip and patch antennas in frequencies up to 10GHz. He is knowledgeable of the latest generation simulation software for circuit design with lumped and distributed parameters. He is experienced in the design of data encoder/decoder stages including FEC, data slicing, filtering, adaptive filtering, RF/microwave circuitry for wireless data transmitting/receiving, spectrum management, and data conditioning. He is proficient in EMI and EMC estimating at the device level and over the air compatibility with other microwave/RF equipment. He has done field and bench RF measurements for device characterization and testing.

Expert is knowledgeable of printed circuit board design from schematic capture, verification, component value optimization for large quantity manufacturing, and linking the design for PCB layout design. He has used various substrate materials for thickness, composition, shape for compliance with existing design or regulations. He has up to 12 layer PCB design expertise in boards with SMD, and trough hole components optimized for testability and large manufacturing series.

Expert has designed a breathilizer equipment utilizing platinum cell sensors. The measured signals were analyzed by a signal processor and measurement calibrated with reference sources.


biomedical engineering


biomedical instrument


510(k) document


electronic communication equipment


electronic device


electronics design engineering


microwave antenna


microwave electronic equipment


radio-frequency electronic equipment


wireless communication


multilayer printed circuit board


printed circuit board


surface-mount printed circuit board


analog signal processor






electronic assembled device


electronic circuit element


electronic signal receiver


medical device manufacturing


microprocessor-based biomedical instrument


rigid-flex circuit board

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Phoenix, Arizona;  Tucson, Arizona;  Mesa, Arizona;  Glendale, Arizona;  Scottsdale, Arizona;  Chandler, Arizona;  Tempe, Arizona;  Gilbert, Arizona;  and Peoria, Arizona.

Often requested
with this expert:

Electromagnetic Interference, Electromagnetic...
Electromagnetic Interference, Electronic Noise, Shielding,...
Antenna/ Microwave Design, Log-periodic Antennas,...
Circuit Design Engineer–Analog, Power Supply, EMI, Video,...

Year   Degree   Subject   Institution  
1998   Ph.D.   Electromagnetics   Technical University-Sofia, Bulgaria  
1994   M.S.E.E.   Electronic Design and Manufacturing   Technical University-Sofia, Bulgaria  
1994   M.B.A.   Small Business   Technical University-Sofia, Bulgaria  
1987   E.E.T.   Electrical and Electronic Technology   Technical School-Kazanlak, Bulgaria  

Work History:
Years   Employer   Title   Responsibilities

2004 to




Product Design Consulting


Product and Business Management Consulting in Medical Imaging, Defense, Consumer, Automotive, Industrial Computing and Wireless Communication fields. Managed worldwide product development and manufacturing projects with FORTUNE 500 companies. Worldwide resource allocations and client oriented multi-country product management and manufacturing. Technology entrepreneur lead multiple startup companies through successful acquisition. Multiple patents pending and granted in medical and automotive field.

2004 to 2005


Suni Medical Imaging


R&D Manager


Engineering manager developed and brought to market semiconductor imaging technology for x-ray digital radiography. Responsible for successful company acquisition in 2006.

2002 to 2004


Cygnus Technologies Inc.


Vice President Engineering


Engineering manager developed and brought to market breakthrough VHF/UHF embedded video/data technology known as dNTSC. Responsible for successful technology transfer after company was acquired in 2001

1998 to 2002




Director of RF Development


Engineering manager developed and brought to market breakthrough VHF/UHF embedded video/data technology known as dNTSC. Responsible for successful technology transfer after company was acquired in 2001

1995 to 1998


Technical University-Sofia, Bulgaria


Assistant Professor


Associate professor in radio communication equipment design and technology department. Conducting research in areas of applied electromagnetics, electromagnetic compatibility (EMC) and RF immunity (RFI).

Career Accomplishments:

Expert is a member of: the Institute of Electrical and Electronic Engineers (IEEE); the Society of Antenna and Propagation (SAP); the Society of EMC (SEMC); the Society of Signal Processing (SSP); the Society of Circuits and Systems (SCS); the Society of Engineering in Medicine and Biology (SEMB); and the Standard Association (SA).

Publications and Patents Summary

He has seven publications and three patents.

Selected Publications and Publishers  
 - Japanese-Bulgarian-Macedonian Joint Seminar on Applied Electromagnetics  
 - Telecomm  
 - CECS  
 - E+E  
 - Telecomm  

Consulting Services:
Recent Client Requests:
  • Expert for consulting on ESD.
  • EMI expert for consulting on EMI on hand held POS products that can read schematics and understand CAD layout.
  • Expert in ULF system.
  • Electromagnetic expert needed for consulting regarding electromagnetic interference low frequency on ULF system.
  • Expert in Text Recognition in Mobile application.
  • Expert for consulting on Radio Transmitter.
  • Expert in sourcing code for a radar detector
  • EMI expert for consulting on conducted noise measurements setup and FCC compliance testing.
  • Antenna design expert for consulting on UMB/ MIR antenna design.
  • Microwave transmission power transfer expert for consulting on microwave antenna design and efficiencies.
  • Expert in EMC mitigation for consultation on a medical intentional radiator device.
  • Expert in TV Power PCBs.
  • EMI expert to consult on signal interference, antenna, & thermal technologies.
  • Expert in sensor immunity compliance.
  • Expert for consulting on Standard Interchange Language Project.
  • Underwriters Laboratory expert for consulting on the authority and limitations of UL.
  • Expert in automotive instrument design for consulting on design of printed circuit board and assembly.
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.

Expert Witness:
Recent Litigation Client Requests:
  • Expert in RF Technology for litigation case involving false claims of machine to tighten skin.
  • Expert in reverse engineering for consulting on RF device.
  • circuit design expert for consulting on analog electronics reliability.
  • Expert in radio frequency for consulting on interference with breath alcohol testing devices.
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.

International Experience:
Years   Country / Region   Summary
1996 to 1997   Romania/Bulgaria   Worked on data flow acquisition and automation.
2002 to 2004   Germany   Worked on image data acquisition from CCD sensors.
2005 to 2008   India   Worked on technology transfer and building an affiliated office for SW and HW R&D in Bangalore
2008 to 2010   China   Heading R&D of an automotive OEM company in Shenzen
2010 to 2011   Canada   Technology transfer and creating R&D group for medical device HW and SW development in Calgary

Language Skills:
Foreign Language   Description
Russian   He can speak, read, and write Russian at an "average" level.
Bulgarian   He is fluent in Bulgarian; this is his native language.
German   He can read German at a "basic" level.
English   He is fluent in English.

Additional Skills and Services:

Expert is a professional teaching instructor with experiences with different audiences. He has lectured Design and Manufacturing of Communication Devices, Biomedical Engineering, Antennas, and Radio-wave Propagation.

Supplier and Vendor Location and Selection

He is directly involved in section of vendors and subcontractors for product design and manufacturing.

Other Skills and Services

Expert has experience in product design, product development of hardware and firmware applications, project schedules, and marketing trials; Experience in medical/dental product design regarding safety regulations ISO, EN and understanding the product certification documentation for medical compliance: FCC, FDA, UL and CE certifications; Experience in wireless RF/microwave transmitter/receiver system design: data encoders, IF data processing stages, UHF/VHF channel up-converters, power amplifier, antenna corrections, portable receiver development, demodulator and data decoder stages for data imaging application; He has worked with Xilinx FPGA, DSP, PSoC, and microprocessor embedded and hardware development; He has working skills with most popular CAD design software packages, FPGA synthesis tools, DSP code development studios, simulation and mathematical packages; He has done field and lab tests for EMC/EMI certification compliance to the consumer and medical emission regulations.


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