Coupling Devices TRIZ Cases
- Coupled-Line Rat-Race Coupler for Stable Output Phase Difference
A four-coupled-line rat-race layout keeps the third and fourth port phase difference stable as frequency shifts from center.
- RF Connector Terminal Structure for Cavity Filter Assembly Tolerance
An elastic terminal bridges the RF connector and electrode pad to absorb assembly tolerance and preserve stable contact in compact cavity filters.
- Symmetric Power Divider Layout for Balanced In-Phase Outputs
A symmetric one-twelfth-wavelength transmission-line layout cuts area and cost while improving amplitude and phase balance in signal division.
- Hybrid Ring Trisection Power Divider for Output Isolation
A two-stage hybrid ring coupler layout enables trisection power division with output isolation, phase balance, and more stable microwave transmission.
- Bent Branch-Line Coupler Layout for Compact PCB Power Splitting
Bent branch lines and fishbone microstrip sections shrink PCB coupler area while preserving 3 dB splitting, isolation, and matching.
- Tunable Resonator Radio Unit for Unsynchronized TDD Isolation
Multiple tunable resonators replace TDD switches to isolate TX and RX bands in unsynchronized multi-band operation with lower loss and power use.
- Hierarchical Signal Routing for Broadband Phased Array Power Splitting
Multi-layer traces and vias create quarter-wavelength routing that broadens phased array bandwidth while preserving main-lobe power and suppressing side lobes.
- PCB Capacitive Isolator for High-Frequency Signal Isolation
Electric field coupling through PCB conductors isolates high-frequency signals while avoiding the size, attenuation, and lifespan limits of couplers and transformers.
- Non-Uniform Waveguide Cavities for RF Filter Harmonic Suppression
A stepped cover narrows the cavity over the low-pass section, shifting resonances higher to improve RF filter harmonic attenuation.
- Orthomode Junction Reflector Geometry for Polarization Isolation
A domed deflection insert in an orthomode junction improves isolation between orthogonal RF signals, cutting interference and noise.
- RF Power Divider With Independent Output Impedance Switching
Discrete impedance switching lets an RF power divider activate multiple outputs while preserving matching and compact smart antenna design.
- RF Substrate Crossovers Outside Phase-Shifting Regions
Crossovers placed outside phase-shifting regions connect RF substrate layers without openings, reducing leakage risk and layout complexity.