Multiple-Port Networks TRIZ Cases

Separate transmit and receive filters plus phase adjustment suppress attenuation, impedance mismatch, and EVM loss in multi-band communication.

Digitally tunable matching and phase networks reduce impedance mismatch and insertion loss across carrier aggregation filter combinations.

A resonant circuit inside a nuclear fuel rod sends wireless pulses through intact cladding for real-time pressure, temperature, and elongation monitoring.

Magnetically coupled inductors and a notch filter reject out-of-band blockers while preserving RF input matching above 1.5 GHz.

By disconnecting irrelevant signal paths and adding a series matched load, this CAT 6A test circuit reduces parasitic crosstalk for more reliable measurements.

Staggered reactance switching and make-before-break timing cut RF phase-change glitches, keeping insertion loss below 1 dB.

A low-power test signal and closed-loop tuning let a duplexer improve signal isolation while reducing insertion loss during operation.

Opposing dielectric temperature coefficients in a multilayer resonator suppress filter characteristic drift across linear and nonlinear ranges.

Primary and supplemental suppressors clamp over-voltage transients while paired shunt capacitors limit parasitic capacitance and preserve passband stability.

A capacitor-inductor phase shifter gives orthogonal antenna elements a 90° phase difference, enabling stable seawater links with electrically small antennas.

Multiple IDT pitches on LiNbO3 are tuned with substrate angles and a dielectric film to suppress unwanted waves in compact multi-band RF front ends.

Combining an acoustic wave resonator with an LC circuit shifts resonance, suppresses parasitics, and enables wider 5G filter bandwidth.

Parallel T-coil paths with distributed filters preserve impedance matching and ESD protection while extending receiver bandwidth.

Tunable high-pass and low-pass IF filtering merges mmWave carrier-aggregation signals while suppressing in-band blocking and saving space and power.

Segmented shield conductors on opposite stack sides suppress EMI while limiting inductor-to-shield coupling in multilayer components.

Using inductors and a bypass capacitor at the transformer midpoint, this circuit lowers low-frequency impedance to suppress memory effect and improve ACLR.

Magnetic coupling between the output and source inductors brings LNA input impedance closer to optimum, reducing noise figure and return loss.

Piezoelectric film thickness is tuned to use sub-resonance, widening the passband while forming high-frequency attenuation poles and limiting spurious regions.

Opposite-phase switch driving suppresses unwanted response modes in an N-path filter, extending usable frequency tuning range.

Switchable series and shunt elements retune PA impedance toward a target Smith chart point, improving RF power transfer and EVM.

A compensation, reset, and energy storage circuit boosts pA-level photocurrent to nA or uA for reliable ambient light sampling.

Parallel bandpass and decimation filtering helps touch sensing circuits process multiple channels in real time with higher accuracy and lower latency.

Standby voltage set circuits pre-charge parasitic nodes in phase interpolators to preserve linearity and phase accuracy at high signal speeds.

Shared analog circuitry lets one IC handle sub-GHz and 2.4 GHz radio paths with lower complexity, lower power use, and controlled harmonic emissions.

Series and parallel resonance replace LC elements to enable dual-band phased-array phase shifting with low insertion loss.

Cross-coupled dummy switches cancel parasitic-capacitance leakage in differential step attenuators to keep gain flat across frequency.

Phase-shifted parallel paths with inductor-based low-pass sections widen N-path filter passbands while keeping insertion and return loss low.

Dynamic impedance control on a shared SAR ADC reference line suppresses switching noise while preserving accurate bit conversion.

Three interdigital transducer electrodes connected to separate nodes improve high-side out-of-band attenuation and filter steepness.

Switchable impedance networks tune the power amplifier to the antenna switch die, cutting EVM and improving RF power transfer under dynamic loads.

Active impedance tuning in a multiplexing output stage reduces ISI-driven jitter and widens the eye window without large passive inductors.

Measured EMAT circuit impedance drives automatic transformer tap and capacitor selection to improve power transfer across coils, cables, materials, and lift-off.

Dynamic dummy-stage enablement removes ISI while balancing BER, latency, and power in a data receiving equalizer.

Combining an LC parallel circuit with acoustic wave resonators widens the low-loss passband while sharpening stopband isolation for multiband communication.

Impedance inverters and notch filters improve balanced duplexer isolation under non-ideal conditions while cutting insertion loss.

A grounded shield layer and resin-covered substrate layout reduce parasitic capacitance, preserving impedance matching and insertion loss.

By reusing the bypass inductor in an integrated LC notch filter, this amplifier rejects jammers without large off-chip filters or unstable feedback.

Integrated LC resonator, low-pass, and band-stop functions improve adjacent-band cutoff and harmonic attenuation in compact receiver filters.

A compensation coil and magnetic shielding element reduce changing PCB magnetic fields that disrupt nearby coils in terminal devices.

By isolating and removing parasitic zeros from filter polynomials, this case improves convergence speed and response accuracy in filter design.

A vertical filter inductor and planar matching inductors cut magnetic flux coupling, improving isolation and attenuation across multiple bands.

Segmenting XBAR bandpass filters into tiled sub-filters improves power handling, bandwidth, and insertion loss for 5G NR and mmWave use.

Low-power test signals and dynamic tuning states let a duplexer measure isolation and insertion loss without disrupting wanted signals.

A high-Q series capacitor between the common terminal and high-band filter suppresses spurious coupling and lowers low-band insertion loss.

Fixed capacitors and inductors form multi-band resonators that match RF impedances and reduce power loss and signal reflection.

Absorbing common-mode noise to ground avoids reflection into peripheral circuits while preserving differential signal transmission.

Parallel ground inductors and an acoustic wave resonator reduce parasitic mounting effects and keep filter attenuation poles stable.

A multi-resonator feedback loop uses orthogonal control of resonator frequency and gain phase to raise Q while preventing oscillation.

By lowering the Q factor of a parallel capacitive element, this filter creates a steeper attenuation pole below the passband.

Multiple LC tank circuits on an integrated passive die improve apparent quality factor and lower insertion loss without enlarging RF filter footprint.