Multiple-Port Networks TRIZ Cases

Lumped element couplers eliminate load VSWR dependency through resistor-capacitor networks, enabling accurate power detection across wideband RF applications.

A power receiving device transmits coil information to a feed unit for safe wireless charging.

Symmetrical eight-shaped balun cancels external magnetic fields through opposite current directions, reducing radiation and insertion loss.

Edge-coupled transmission lines on a die transform impedance from lower input to higher output, enabling high DC bias current handling without separate chokes.

A tunable switched impedance matching network optimizes energy transfer in wireless power systems.

A filter bobbin with a central through hole allows direct wire winding around the core.

A tuning circuit adjusts variable impedance to maximize power extraction from incident RF waves in self-tuning RFID tags.

A multilayer impedance conversion circuit uses overlapping primary and secondary coil elements to define a specific ratio.

Coupled spiral inductors on a high-resistance substrate integrate common-mode filtering and ESD protection, eliminating bulky discrete components.

Common mode chokes and capacitors filter feedback signals near the electrical machine to reduce electromagnetic compatibility issues.

Outer-surface conductors on a single-layer glass plate resolve firing-induced shape variations and internal stress.

A multilayer common mode filter uses segmented magnetic layers within spiral coil conductors to secure magnetic coupling between the windings.

Dual ring plated through hole vias and D-style ground openings create a coaxial to microstrip transition that minimizes insertion loss in mixed dielectric PCBs.

Phase shifters cancel intermodulation products via double phase-matched passive devices, eliminating distortion without high insertion loss filters.

Obliquely crossing bridge portions in the ground conductor modulate capacitance to stabilize characteristic impedance and reduce insertion loss.

A broadband power limiter uses shunt diodes and impedance transformers to handle high CW signals.

A tunable matching network adjusts impedance via switchable components to maintain optimal signal transmission across varying frequency bands.

Segmented floating grounds form resonance circuits that absorb high-frequency noise while reducing signal reflection.

A plasma control apparatus uses an LC circuit and phase sensor to stabilize voltage and current during processing.

Coupled parallel and series resonant circuits stabilize driving signals during high-load tissue treatment by aligning frequencies.

Clamping terminals secure inductor wires to a circuit board module, eliminating manual winding and welding labor.

A 90° hybrid splits signals into quadrature outputs to drive duplexers.

Impedance transform circuitry adjusts signal path impedance to alter clamping voltage levels in RF receiver bypass paths.

Variable non-resonant elements create reflection zeroes in the stop band, reducing insertion loss while maintaining high selectivity.

Multi-layer PCB feed module integrates balun couplers to resolve connector accommodation challenges in high-density phased arrays.

Electrochemical etching replaces laser drilling to form smooth vias, resolving rough wall defects and enabling high-density filter integration.

A re-configurable magnetoinductive waveguide adjusts primary resonator impedance via inductive coupling to a secondary resonator.

An embedded notch resonator sharpens the frequency response of a stepped-impedance low pass filter.

A chockless power coupler uses a BALUN with a ferrite element to separate RF and AC signals via phase reflection.

Damping device with dipoles connected to cable wires and ground reduces interference emissions by up to 50 decibels, resolving cable harness resonance issues.

Segmented diode stacks on a coaxial line handle several kW interference signals without increasing waveguide aperture size.

A common mode choke coil uses a laminate structure with insulating layers to contain magnetic flux within the device.

A variable capacitance circuit regulates impedance through direct current voltage terminals applied to segmented ferroelectric thin film capacitors.

A compact filter component integrates an inductor, varistor, and capacitor on a shared semiconductor base board to minimize parasitic inductance.

A power supply circuit uses a protection circuit to output an interruption signal that forces transistors nonconductive when node voltage exceeds a reference.

A variable capacitor and inductor tune antenna electrical length via a series circuit connected to the feed terminal.

Laminate shielding limits electromagnetic coupling in variable gain amplifiers, increasing OIP3 and OP1 dB while maintaining wideband return loss.

An on-chip electromagnetic bandgap structure filters noise using stacked power and ground meshes with integrated inductors.

Embedding duplexers for common bands while surface-mounting regional units reduces production costs and simplifies the manufacturing process.

Segmented hollow cylindrical body with axial channel and tuning capacitor reduces thermal stress on solder joints while suppressing common mode currents.

A tapered housing directs airflow to the largest coil block, reducing heat loss while maintaining stability on vertical walls.

A phase shifter circuit uses an inductor, capacitors, and a resistor to shift high-frequency signal phase.

A slot-based mode converter transforms electromagnetic signal characteristics to match substrate integrated waveguide requirements.

A multi-layer circuit board resonator with T-shaped arms suppresses common mode noise through electromagnetic resonance.

An integrated vehicle antenna embeds a feeding part and reflector to enhance radio wave directivity within compact spaces.

Separate amplitude and phase balancing circuits compensate for tolerance variances and material aging, reducing false detections in metal detectors.

Programmable power combiners adjust impedance via quarter-wave elements to disconnect inactive ports, eliminating power dissipation in resistors.

A balancing network adjusts impedance to match antenna characteristics in a power distributing duplexer system.

Segmented coil windings with gaps reduce parasitic capacitance, enabling high-frequency EMI suppression without increasing circuit space.