Multiple-Port Networks TRIZ Cases

An active step attenuator converts RF energy into DC voltage to dynamically adjust signal power levels in real time.

A printed balun device uses conductive tracks and ground patterns on a dielectric base plate to match single-ended and differential signals.

A multi-harmonic matching network uses tuned impedance elements to compensate parasitic reactances across frequency bands.

A coupled transmission-line impedance transformer uses progressive characteristic impedances to match input and output ports across a wide frequency range.

Multilayer duplexer designs use ground terminals to block electromagnetic coupling between transmission and reception filters.

A multi-bandwidth balun uses mutual inductance between a shared main inductor and separate conversion circuits to enable signal processing.

Strategic external electrode placement ensures sufficient plating layer thickness on the direction identification mark, reducing recognition errors.

Coupled resonant oscillators mediate energy transfer through shaped near-fields to extend transmission range beyond traditional induction limits.

An impedance matching section creates attenuation poles through resonance, maintaining amplitude and phase balance across a wider frequency range.

Interlaced coupling of a double ring inductor with dual traces resolves the contradiction between high Q value and limited application bandwidth.

A parallel path with specific impedance creates destructive interference to attenuate signals outside the passband.

Series-connected VGAs and equalizers use independent peak detectors to adjust gain and coefficients, extending receiver reach by 30% without degrading SNR.

An impedance adjustment circuit mediates between a grounded switch and diplexer, transforming high or low impedance states to 50Ω to minimize energy loss.

Merges harmonic filtering with quadrature signal splitting using integrated LC traps, eliminating external filters and reducing insertion losses.

A microstrip combiner splitter uses a tapering section to match impedance between ports without discrete components.

A receiver filter uses cross-coupled variable resistor arrays between low-pass channels to adjust signal paths and suppress image interference.

A variable filter circuit employs a parallel inductor to achieve steep attenuation near the lower pass band edge, reducing component count and complexity.

Directional couplers in this filter combiner prevent signal leakage and phase distortion while enabling easy retuning for high isolation.

Iterative bias voltage adjustment compensates for manufacturing tolerances and hysteresis, achieving one percent accuracy in BST capacitor settings.

A second capacitor adjusts attenuation poles in the low frequency region, resolving size versus sharpness trade-offs.

A power dividing circuit integrates high pass and low pass filtering modules to process divided signals before amplification.

Replacing mechanical vacuum variable capacitors with electronic switching eliminates failure modes and reduces impedance matching time in plasma chambers.

An intermediary conductor insulated from the magnetic core forms a capacitor with the coil, suppressing inter-wire capacitance without grounding the core.

Multi-modular capacitive wireless power transfer circuit reduces fringing electric fields by 50% using out-phased adjacent modules.

A transformer and rectifier convert AC interference signals to DC feedback, resolving topology compatibility limits by recovering waste energy.

Non-overlapping coil conductor patterns in a multilayer triplexer eliminate parallel resonant circuits, preventing signal mixing across frequency bands.

Stacked conductor layers in a composite electronic component reduce magnetic field coupling, easing resonant frequency design.

A multilayer band pass filter uses six stacked LC parallel resonators with strategically placed capacitors to define a precise frequency response.

Distributed noise filters increase system impedance in the amplitude modulation band to reduce radio noise entry into low-impedance devices.

Through-substrate vias replace wrap-around contacts in a high frequency attenuator, eliminating signal reflections and impedance mismatches above 18 GHz.

Segmenting antenna inputs with independent RF generators resolves amplitude phase control precision trade-offs in plasma processing.

A switchable multi-frequency RF power supply combines and amplifies signals to control plasma density.

Tubular filter structure integrates lumped elements and metal powder epoxy to attenuate electromagnetic noise in superconducting processors.

A receiver switching system estimates baseband signal quality metrics to select optimal paths before transmission errors occur.

Embedding solenoid coil and capacitor elements in through holes creates compact LC filters that reduce insertion loss for high-capacity communication.

A composite electronic component uses a tapered protective film to shield internal resistors from external electrode contact.

FFT pre-coding lowers peak-to-average power ratio in OFDM systems, reducing amplifier heat and cost.

A tunable matching network adjusts impedance to optimize transmitter power and receiver sensitivity across multiple frequency bands.

A directional coupler uses switchable paths to toggle directivity between forward and reverse signal directions.

Point connections under 5% of transmission line length reduce insertion loss while injecting DC bias across 500 MHz to 40 GHz.

An M-way coupler uses a phase shifting network to compensate for path length differences across widely spaced ports, reducing connection complexity.

Averaging channel impulse responses over distinct time periods yields filtered signals for precise first arriving path estimation in OFDM receivers.

Integrating two splitters on one substrate eliminates unequal transmission impedance and signal interference found in discrete implementations.

A gap-mode waveguide condenses a dominant electromagnetic mode near an interior gap to enable low-dispersion signal propagation.

Isolated conductive paths in a diplexed near-field sensor reduce component stress by rapidly dissipating residual energy after pulse transmission.

Patterning the ground part creates a potential difference that maintains a 180° phase shift while reducing overall size.

Varactors in phase shifting networks enable electronic tuning of isolation frequency, resolving insertion loss and poor repeatability.

Segmented internal electrodes reduce electrode resistance and maintain Q value in miniaturized multilayer capacitance elements.

Embedding lumped elements in a multi-layer substrate reduces the footprint of quadrature hybrids while maintaining wideband performance.