Resonators TRIZ Cases
- Integrated RF Module LNA Filter Spurious Leakage
Integrating a low noise amplifier with an on-substrate filter circuit reduces wiring length and insertion loss in radio frequency modules.
- Compact Resonator With Local Dielectric Concentration
Local dielectric concentration in the cavity prevents sharp decreases in resonant frequency and Q value during miniaturization.
- Tunable Microstrip Combline Filter for Sub-Harmonic Suppression
Series-coupled varactors in a microstrip combline filter dynamically adjust center frequency while suppressing sub-harmonics across wide bandwidths.
- Multi-mode Resonant Filter Using Orthogonal Transmission Lines
A multi-mode resonant filter uses orthogonal transmission lines to couple electromagnetic modes within a single dielectric resonator element.
- Mixed-mode dielectric waveguide filter topology
A mixed-mode dielectric waveguide filter uses parallel single-mode and multi-mode resonant cavities to improve Q value.
- Graphene Microresonator Dispersion Tuning via Fermi Level Modulation
Gate voltage tuning of the Fermi level in a graphene-ion-gel heterostructure dynamically adjusts intracavity dispersion, resolving fixed waveguide limitations.
- Dielectric-Loaded Cavity Resonator With Pedestal Air Gaps
Pedestal-mounted air gaps boost the Q factor and mode separation of compact dielectric-loaded cavity resonators without increasing volume.
- Tunable Bandpass Filter With Constant Absolute Bandwidth
Adjustable resonators in this tunable bandpass filter maintain constant absolute bandwidth, reducing base station size and hardware complexity.
- Multi-mode Bandpass Filter Triangular Aperture Coupling
Triangular apertures and through holes in a multi-mode bandpass filter increase bandwidth beyond the 5% fractional limit of conventional designs.
- Millimeter Wave Half Mirror Slit Thickness Optimization
Optimizing the blocking portion thickness flattens transmittance characteristics and reduces spatial radiation loss.
- Bulk Illumination RF Resonator for Low Power Photonic Control
Bottom illumination through a transparent substrate generates bulk free carriers, increasing RF transmission sensitivity without bias voltage.
- Multi-mode Cavity Filter Using Aperture Coupling
An aperture couples signals between dielectric resonators, eliminating defects that increase resistive losses.
- Stacked Metallization Filter Antenna Integration
A stacked metallization filter arrangement integrates resonant cavities with an antenna aperture to reduce insertion loss.
- Resonator Assembly With Dielectric Spacer Impedance Control
A dielectric spacer element mounted between a conductive resonant member and cavity acts as an impedance transformer.
- Planar Cavity Resonator Design for High Q Microelectronic Filters
Unitary conductor traces on a dielectric substrate form integrated transmission lines and inductors within a shielded enclosure.
- Optical Modulator RF Response Tuning via Resonator Losses
A tunable optical resonator couples to a Mach-Zehnder interferometer arm to shape frequency-dependent losses and adjust the radio-frequency response curve.
- Tunable Waveguide Resonator With Movable Conductor
A tunable waveguide resonator uses a movable electrically conducting body to adjust frequency within the cavity.
- Microstrip Line Filter With Defected Ground Structure
A microstrip line filter uses a defected ground structure to increase equivalent inductance and reduce circuit area.
- Microwave Filter Stub Embedded Spurline Harmonic Rejection
Embedded spurline in stub rejects central frequency and passes odd harmonics, reducing circuit complexity and ohmic losses.