High Frequency Amplifiers TRIZ Cases
- RF Defrosting Apparatus with Impedance-Based Mass Estimation
See how RF power measurement and impedance matching replace physical weight sensors to estimate
- Cryogenic Dual-Mode Low Noise Amplifier for Rain Fade Links
Switchable cryogenic cooling lets a satellite low noise amplifier boost signal-to-noise ratio during atmospheric attenuation without constant power draw.
- Inset Antenna Structure for Compact Spatial Power Combining
Inset body regions let the antenna be bounded on one end, shrinking spatial power combiners for higher frequencies and easier manufacture.
- Active RF Splitter-Combiner Circuitry With Differential Coupled Lines
Active gain stages and differential coupled lines replace passive RF splitters to cut power loss, save chip area, and maintain impedance matching.
- Coupled Magnetic Pulse-Shaping Network for Compact RF Amplifiers
A coupled multi-winding magnetic element replaces separate inductors in RF pulse-shaping networks, cutting size and cost while preserving filtering.
- Envelope-Following RF Power Supply for Peak Tracking Efficiency
An envelope-following boost converter tracks RF signal peaks to cut power amplifier back-off, reduce peak compression, and simplify supply architecture.
- Coaxial Combiner Layout With External Amplifier Modules for Low RF Loss
External amplifier modules mounted on a coaxial combiner cut cable loss, improve cooling through the outer conductor, and keep high-power RF units compact.
- Over-Coupled Directional Coupler for Wideband Quadrature Signals
Using parallel conductive strips on two metal layers, this case shows how over-coupling widens millimeter-wave quadrature bandwidth without digital reconfiguration.
- Tracking Power Supply Switching Network for Fast Rail Selection
Multiple fixed power rails and a switching network enable rapid load voltage changes without demanding fast response from the power converter.