Multiple-Port Networks TRIZ Cases
- Antenna Array Reactance Cancellation Using Non-Foster Circuits
Non-Foster circuits reduce antenna quality factor by more than 10 times, resolving efficiency constraints in superdirective designs.
- Transformer Matching Network for RF Impedance
A transformer-based matching network uses multiple secondary windings to generate distinct output signals.
- Zero-Sequence Current Compensation in Multilevel Power Converters
A control system subtracts zero-sequence current components from reference commands to reduce ground current injection.
- Dynamic Impedance Tuning Circuit for Broadband Return Loss
Switchable parasitic capacitances adjust input impedance based on component states, minimizing return loss across broadband frequencies.
- Broadband Impedance Matching Circuit with Variable Capacitance
Variable capacitors and parallel inductors provide adaptive impedance matching, reducing device complexity while maintaining multi-band communication quality.
- Wireless Energy Transfer Using High-Q Resonators and Field Shaping
High-Q resonators coupled via shaped magnetic fields mediate near-field energy transfer between source and receiver units.
- Wireless Power Transmission System for Seawater Resonance
Resonant power transmission system using tuned antennas to transfer energy through conductive seawater media.
- Impedance Matching System Using Normalized Control Parameters
A matching system adjusts reactance using normalized impedance parameters to stabilize convergence across varying load conditions.
- FADEC Pressure Spike Filter for Gas Turbine Surge Detection
A pressure spike filter algorithm divides measured pressure rate of change by average pressure to identify erroneous signals in dual channel FADEC systems.
- Tunable Antenna Circuit for Slim Electronic Devices
Parallel low-resistance circuits lower total impedance to enable efficient frequency shifting in slim electronic devices while maintaining antenna gain.
- Calibrating Variable Capacitor Positions in Plasma Match Networks
A control system converts actual capacitor positions to comparable golden match values, eliminating false alarms from manufacturing variability.
- Band Pass Filter Memory Package Signal Integrity Power
Package substrate band pass filters replace on-die termination circuits, reducing power consumption by 62.5 percent while maintaining signal integrity.
- Mount Component With Sub Line Only For Low Loss Directional Coupler
Extracting the main line from the mount component eliminates internal connection structures, reducing insertion and reflection losses that distort signals.
- Phase Shift Compensation in Tunable Antenna Systems
A tunable phase shift network compensates for signal phase deviations caused by antenna impedance tuning.
- Noise Filter Magnetic Coupling Reduces Parasitic Inductance
A noise filter uses a magnetic body to couple conductive lines, reducing equivalent series inductance.
- Planar T-Coil Bridge Capacitor for ESD Signal Integrity
A planar T-coil uses a bridge capacitor to route high-frequency signals while maintaining signal integrity.
- On-Chip Transformer With Tuning Capacitors For High Q Factor
Parallel tuning capacitors in a partially-shielded network reduce eddy current loss to improve the quality factor of on-chip transformers.
- Parallel Adaptive Filter Circuit for Narrowband Interference Suppression
Parallel adaptive filters with varying tap counts select the optimal output to suppress narrowband interference in communication signals.
- SDMA Null Subspace Feedback for Cross-Talk Minimization
Nodes return null subspace information to calculate antenna weights that minimize cross-talk between users.