- Radio-frequency (RF) and microwave systems
- RF MEMS devices and RF amplifiers
Tunable Matching Networks (TMNs) are used widely in radio-frequency applications due to their ability to provide rapid and dynamically-controlled impedance matching. However, to keep up with emergent technology, TMNs need to provide rapid, high-bandwidth, continuous impedance matching over a wide impedance range, need to operate efficiently at high power levels, and need to be integrable with other methods and systems. Phase-Switched TMNs and a novel switching RF amplifier design meet these challenges.
Phase-Switched TMNs achieve tunability by incorporating one or more phase-switched variable reactances (circuit elements which resist changes in the current flow rate). Using an innovative method, circuit elements such as capacitors or inductors are reconfigured to become tunable circuit elements which can then be assembled into a larger Tunable Matching Network. In addition, the TMN can be integrated into a novel highly efficient RF amplifier, called a zero-voltage-switched switching RF amplifier, which can modulate a wide range of output power, match highly variable loads and operate over wide frequency ranges.
- Simple design produces high reliability
- Versatile assembly ensures easy integrability with a variety of systems
- Flexible design produces efficient impedance matching and signal amplification over widely varying parameters