Multiple-Port Networks TRIZ Cases

Tunable matching networks detune non-selected antenna impedances to enhance port isolation in multiport RFID readers.

Capacitive coupling transfers DC power across impermeable barriers without physical penetrations, preserving structural integrity.

Adjustable metallic tiles in a mechanical hub vary capacitance and inductance to correct impedance mismatches caused by environmental aging.

A stacked transformer coil uses parallel loop conductors to achieve high coupling coefficients in compact wireless communication devices.

A broadband balun couples differential signals through a transition region that shapes electromagnetic fields between balanced and unbalanced transmission lines.

A planar antenna impedance matching circuit uses variably adjustable capacitors to tune signal paths.

Dividing intermediate inductor segments allows independent adjustment of magnetic coupling strengths, resolving uneven coupling and mismatched impedance issues.

Multi-geometry probes on a single carriage extend bandwidth from 0.6 GHz to 18 GHz, replacing multiple devices.

An integrated antenna assembly combines a whip, helical, and patch antenna with a matching network to resolve the tradeoff between gain and bandwidth coverage.

A circuit module uses intersecting center electrodes to intensify direct-current magnetic fields from permanent magnets.

A tunable RF duplexer splits signals via hybrid couplers and filters to combine quadrature components.

Frequency-tuning matching method adjusts source RF power output to track rapid plasma impedance variations, reducing reflected power and overheating.

A filter circuit connects multiple band-pass filters via shared terminals to reduce component count.

A fiber concentration profile measuring apparatus uses conductor bodies and series resonance circuits to detect electrical resistivity of pulped fiber pads.

A multilayer band pass filter uses parallel LC resonator pairs to enable adjustable jump magnetic and capacitive coupling between non-adjacent stages.

An integrated high-voltage divider combines capacitor and resistor stacks to resolve narrow frequency band resonance limitations in conventional CVTs.

Direct electrode-to-terminal contact eliminates lead routing space, reducing noise filter volume.

A front end module uses a switch to connect notch filters to a base filter, creating overlapping stop bands that shape the radio frequency pass band.

Switchable capacitors and FETs dynamically adjust a shielding coil to block EMI noise across AM, FM, and DMB bands without fixed filters.

External inductor components define directional couplers on multilayer substrates to reduce electromagnetic interference with internal circuit elements.

Nested conductive patterns in a radio frequency filter achieve improved skirt characteristics while maintaining compact size.

A conductive partition divides the shielded cavity to raise resonance frequencies, preventing attenuation degradation from unwanted waveguide modes.

A compensation device generates correction currents using hybrid analog and digital signal processing to neutralize leakage in vehicle chargers.

TX_TEQ unit estimates reception channel and calculates TEQ coefficients to reduce inter-symbol interference without per-packet recalculation.

A parallel phase compensator stabilizes the PLL circuit by suppressing parasitic capacitance influence on the loop filter.

An impedance adjustment circuit uses a low-output-resistance capacitor to transmit electric power between energy generation and conversion stages.

Coupling capacitors reduce voltage swing on on-chip wires, lowering power while maintaining signal integrity.

Segmented columnar via electrodes increase dielectric proportion, resolving the trade-off between compact size and structural strength.

Cascaded capacitor and inductor circuits on conductive busbars attenuate electromagnetic interference emissions, eliminating complex mounting brackets.

A bias path controller resonates with static reactance to manage RF bias current flow in dry etching systems.

Parallel signal branches form a ring resonator that cancels interference signals at stop frequencies while maintaining low insertion loss in the passband.

A DC-DC converter controller exploits capacitor charge balance to adjust duty cycles and manage inductor current for rapid transient recovery.

Segmented impedance sections replace bulky Wilkinson structures, enabling high isolation and wide bandwidth within space-constrained RF systems.

Vertical stacking of integrated laminates reduces device volume while electromagnetic shielding layers suppress parasitic noise.

Inductive elements connect between capacitive nodes and ground to suppress parasitic capacitance, reducing electromagnetic interference in signal transmission.

A data unit receiver detects reordering indications to adapt gap response procedures for accurate sequence reconstruction.

Segmenting the coil electrode at a specific ground connection point resolves phase balance accuracy issues in multilayer balanced filters.

A compact Doherty combiner replaces bulky transmission lines with discrete lumped elements to reduce physical footprint.

Successive interference cancellation decodes layers sequentially, eliminating pre-decoder buffering and reducing memory usage while maintaining throughput.

Adjusting single-ended port position creates controlled asymmetry to correct differential imbalance in transformer baluns.

Compressible rings absorb thermal expansion and manufacturing tolerances, maintaining consistent spacing between the planar filter and ground planes.

Mutual inductance portions in branched transmission lines equalize path impedance differences in RF cross-switches.

Segment usage scenario determination database into impedance and aperture tuner parts to reduce memory size.

Alternating polarity between paired targets ensures uniform thin film thickness distribution even at low frequencies.

A band-pass filter merges shunt circuits, resonant networks, and storage element circuits into a single structure to define multiple passbands.

Multilayer surface mount Gysel divider achieves 51% bandwidth and high power handling via coupled line isolation.

Offset resonance widens second harmonic suppression bandwidth, maintaining performance despite manufacturing process variations.

Segmented LC circuits in the band antenna EMP filter block residual currents, minimizing signal degradation during high-altitude electromagnetic pulses.

A cryogenic refrigeration system uses hydrogen getters in a secondary helium circuit to remove contaminants before they reach the primary dilution refrigerator.