MTT-17 has sponsored sessions at the past International Microwave Symposia, progressing from a rump (evening) session to a focused session, and two regular sessions.

The topics included driving plasma loads, RF ID, class-E power amplifiers, class-F power amplifiers, RF-power MOSFETs, simulation, modulators, ultra-linear amplifiers, linearization, power detectors, mixers, GPS receivers, and digital signal processing.

The 200 - 300 attendees at each session is a clear signal that there is significant interest in these frequency bands!

The IMS 2007 wasl held in Honolulu, Hawaii, Sunday, June 3 through Friday, June 8, 2007.

MTT Technical Committee 17 on HF, VHF, and UHF Technology sponsored (co-spondored) the following IMS sessions and workshops in Honolulu.

Workshop WMJ "Will Wide Band-Gap Power Transistors Render Silicon Power Transistors Obsolete?" to consider the use of Wide band-gap power transistors based on GaN and SiC in RF applications.

Workshop WMF "Theory and Design of Phase Locked Loops"” as a laboratory hands-on course with live hardware and software demonstrations.

Session TU3A "Advances in RF Power Amplifier Technology"” including:
- A Highly Efficient UHF Power Amplifier Using GaAs FETs for Space Applications
- Model for the Low-Frequency Performance of Ferrite-Loaded Balun Transformers
- Class-E Amplifier Design Equations for Maximizing the Frequency Utilization of a Device
- UHF-Band Long-Pulse Radar Power Amplifiers using Push-Pull and Balanced Configurations
- Class-E Silicon Carbide VHF Power Amplifier

MTT-17 10th Anniversary Reception
Technical committee (MTT-17) for HF, VHF, and UHF technology was created at the International Microwave Symposium IMS'97 in Denver to serve the needs of some 26,000 RF engineers who work at frequencies below 1 GHz.

At IMS 2007 (Hawaii, June 2007) we commemorated our TEN YEARS of existence.

To celebrate its tenth anniversary, Technical Committee MTT-17 presented a talk on "Trends in Magnetic Resonance Imaging (MRI)"” by J. Thomas Vaughn. Dr. Vaughn is a professor at the University of Minnesota and a recognized expert on the RF aspects of MRI, an important tool for medical diagnostics and other applications and a major application of HF/VHF/UHF technology. [Download PDF (9MB) of the conference].

Ham Radio Social
All radio amateurs attending this event enjoyed the presentation by Al Katz, K2UYH, on earth-moon-earth communication, also known as EME or moon bounce

Interactive Forum Session WEP1D "HF/VHF/UHF Technologies and Applications" including:”
- Low-Pass Active Filter Enabling DVB-H/T and GSM Standard Coexistence
- Adjacent-Channel Power Contributions of Silicon MOSFET Switches in RF and Microwave Systems
- High-Frequency Power Amplifiers without Ground
- 0.25µm CMOS Dual Feedback Wideband UHF Low-Noise Amplifier

What a big show for the Microwave Week in Fort Worth Convention Center, Texas, June 6-11, 2004. A lot of workshops, tutorials, special sessions and the traditional Exhibit with research results, innovative products and microwave techniques.

MTT-17 sponsored some interesting workshops with clear success in attendees: digital Signal Processing in Microwave Transceivers; modern Filter Design Techniques; packaging for High Power RF Apps; distortion Correction of High Power Amplifiers with DSPs; RF and Microwave Power Amplifier Design

A big show for the Microwave Week in San Francisco, California, June 11-16, 2006.

MTT-17 sponsored an interesting workshop "FUNDAMENTALS OF HF THROUGH UHF DESIGN" with clear success in attendees.

The workshop presented material covering issues of circuit and system design primarily for frequencies below 1000 MHz (UHF).

The workshop was geared for engineers either entering the RF field or for engineers “retooling ” for design work in this frequency range.The workshop topics range from an introduction of HF through UHF systems to high power components and high power filtering,propagation and active devices seen in
such applications as transmitters,high power amplifiers,oscillators and control devices.

The IMS 2008 was held in Atlanta, Georgia, Sunday, June 15 through Friday, June 20, 2008.

MTT Technical Committee 17 on HF, VHF, and UHF Technology sponsored (co-spondored) the following IMS sessions and workshops in Atlanta.

Workshop WMA "Highly Efficient Linear Power Transmitters for Wireless Applications based on Switching Mode Amplifiers".

Tutorial TMA "RF Design Components of Magnetic Resonance Imaging".

Session TU3D "Advances in HF, VHF and UHF Power Amplifiers"” including:
- A 65-W High-Efficiency UHF GaN Power Amplifier
- 800W UHF SiC SIT Transistor for Radar Applications
- Series-Tuned High Efficiency RF-Power Amplifiers
- Design and Computer Simulation of High Efficiency Broadband Parallel-Circuit Class-E RF Power Amplifier with Reactance Compensation Technique
- Switching-Mode Linear RF Power Amplifier System
- An AlGaN/GaN Class-S Amplifier for RF-Communication Signals

Interactive Forum Session THP2C "HF/VHF/UHF Technologies and Applications"” including:
- A Novel Adaptive LDMOS Power Amplifier with Constant Efficiency for Wide Dynamic Power Levels Control
- Long Life Microwave Electrodeless Lamps for Projection Display and General Lighting Applications
- Underwater Motion and Physiological Sensing using UHF Doppler Radar

Ham Radio Social
All radio amateurs and IMS attendants to this event enjoyed the presentation by Dr. Joe Taylor (Nobel Prize) about radio astronomy and the everyday life of the typical VHF/UHF ham radio operator (Dr Taylors amateur radio call is K1JT)

The IMS 2009 was held in Boston, MA, Sunday, June 7 through Friday, June 12, 2009.

Our session on Power Amplifiers WE4A was full, with a number of attendees standing around the edges of the room. A count of attendance 15 minutes after the session began was 260. We also co-sponsored the Tuesday Night Ham Radio Social, which was well attended.

MTT Technical Committee 17 on HF, VHF, and UHF Technology sponsored (co-spondored) the following IMS sessions and workshops in Boston.

Workshop WMC "Power Amplifier Linearization: From Advanced Analog and
Digital Techniques to Practical Real-Time Implementation"; Monday, 08:00 - 17:00.

Workshop WWB "RF Design Components of Magnetic Resonance Scanners"; Wednesday, 08:00 - 12:00, organized by Robert Caverley.

Session WE4A HF/VHF/UHF Power Amplifiers

Interactive Forum Session WEPB "HF/VHF/UHF Technologies and Applications”.

Ham Radio Social
All radio amateurs and IMS attendants to this event enjoyed this event.