Microwaves & Microwaves

: Here are a few examples of my work. The information has been edited to protect proprietary information.
Microwave Stepped-CW MM-Wave Tranceiver Configured as a Short Range Pitch-Catch Radar: Stepped-CW Sub-Terahertz Transceiver

Finite Element Models of Interesting Microwave Devices: Coaxial Microwave NDE-NDT Measurement Chambers - Comsol Multiphysics

Prolate-Spheroidal Microwave NDE Test Chamber - flexPDE

Microwave NDE Instrumentation
: Microwave NDE-NDT Test Fixtures

Microwave NDE Measurement of Silicon Conductivity
: Non-Contacting NDE-NDT Silicon Conductivity Measurement - flexPDE

Comments Regarding my Electromagnetic Wave Propagation and Microwave Design and Analysis Work:: I have been generally interested in this field of work since boyhood. I was an amateur radio operator in high school and planned to become a satellite communications engineer in college. As it happens, I ended up getting swooped off to do equally interesting work in biomedical ultrasound engineering instead.; Fortunately, my twenty-five years of experience in acoustics and medical ultrasound turned out to be very helpful when I got into microwave engineering a few years back. Everything in ultrasound physics eventually boils down to wave propagation. Interestingly, since essentially all medical ultrasound devices utilize millimeter and sub-millimeter waves to interogate regions-of-interest in the human body, if you know one discipline well ... you actually already know quite a lot about microwaves.; Anyway, I got into microwave measurement systems in order to see if I could develop a non-contacting sensor that would be responsive to the conductivity of variably doped porous silicon wafers and variably conducting electrolytic chemical solutions. So, I set up a microwave lab with all manner of signal generators, power meters, directional couplers and a 2-18 GHz vector network analyzer. Using this equipment, I made a variety of useful measurements and developed useful mirowave skills.

At one point I was approached by a small company that wanted to evolve a very expensive G-Band (140 -220 GHz) academic research tranceiver into a commercial product with much reduced (but still quite high) manfucturing cost. The project was interesting and I learned a lot.

Unfortunately, my client company for this project went out of business at a point when the G-Band transceiver project was very close to proper operation. It is now seven years later ... and ... I am, somewhat reluctantly, putting the G-Band components up for sale as a kit. The transceiver parts kit is being offered at a fraction of the new cost ... and ... will be very helpful to a company wishing to jump-start their sub-terahertz G-Band capabilites and experience, at a bargain price.

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