Waveguide Type Devices TRIZ Cases
- Spiral Digital Phase Shifter Layout for Compact Phase Control
A spiral cascade layout with bend-type connections keeps digital phase shifters compact while limiting magnetic-field cancellation that disrupts phase operation.
- Liquid Crystal Spatial Filter With Shared-Electrode Frequency Tuning
Shared electrodes and a voltage-tuned liquid crystal layer let each resonant unit adjust frequency with fewer control lines and less interference.
- Bent Digital Phase Shifter Layout for Reflection-Uniform Phase Shift
Parallel capacitors at bent connection lines average phase shift variation and reduce weak-reflection impedance mismatch.
- Cavity Phase Shifter Assembly With Controlled Dielectric Gap
A controlled non-zero gap between the dielectric element and phase shift circuit cuts phase deviation, friction, and sticking in base station antennas.
- Non-Reciprocal Circuit Layout Without Substrate Magnet Holes
A thinner permanent magnet and ground-conductor removal layout avoid substrate holes, preserve strength, and support wide-band non-reciprocal operation.
- Ceramic Waveguide Filter Grooves for Ultra-Short Delay Tuning
Groove-shaped delay adjusters and slots help ceramic waveguide filters tune ultra-short delays and suppress spurious waves.
- Shared-Filter RF Phase Shifter for Lower Loss and Smaller Size
A shared filter with switchable capacitor circuits cuts RF phase shifter size and insertion loss while preserving flexible bit control.
- Dielectric Phase Shifter Layout for Slimmer Antenna Beam Control
By varying dielectric constant instead of line length, this antenna phase shifter simplifies transmission lines, saves space, and supports beam adjustment.
- Dielectric Filter Side-Via Layout for Smaller Footprint and Stable Q
Side-surface resonance vias and top coupling holes shrink dielectric filter footprint while preserving Q, improving remote suppression, and cutting loss.
- Liquid Crystal Phase Shifter Layout for Uniform Capacitor Gaps
Equal pillar spacing outside electrode overlap keeps capacitor gaps uniform, improving liquid crystal phase shifter stability and performance.
- Spinel-Rutile RF Ceramic for Low Loss and Temperature Stability
A ZnO-Al2O3-TiO2 ceramic combines spinel and rutile phases to cut RF loss tangent while maintaining temperature stability for co-fired components.
- Grounded Half-Wave RF Filter Layout for Lower Insertion Loss
Fully grounded half-wave resonators cut insertion loss and improve stopband rejection in distributed RF filters on PCB substrates.
- Dielectric Filter Through-Hole Coupling Without Parasitic Resonance
A through hole between blind vias creates 90° phase-shift coupling, reducing modeling complexity without parasitic resonance or low-band loss.
- Low-Pass Filter Notch Structure for Shorter High Attenuation
A nested metal pipe and dielectric tube create a notch that boosts attenuation while shortening the low-pass filter and cutting manufacturing cost.
- Non-Rectangular Combline Waveguide Filter for Precise 3D Printing
Non-rectangular resonator cavities enable additive printing of combline waveguide filters without overhangs, cutting weight, assembly, and cost.
- Tunable SIW Waveguide Filter Stack for Close-In Signal Isolation
Stacked SIW filters with SLCFET switching improve close-in signal isolation while keeping RF tuning compact, linear, and low power.
- Metal-Supported RF Filter Assembly for Thermal Stress Relief
A metal support member isolates ceramic RF filters from FR4 expansion mismatch, reducing solder cracks, shorts, and layout errors.