Waveguide Type Devices TRIZ Cases

Thin 30-50 μm liquid crystal layers with controlled molecular orientation deliver faster phase modulation without losing phase change.

A folded cavity layout with cross-couplings and un-metallized regions widens the pass band while preserving close-in spurious rejection.

A transparent plastic film with a hollow metal resonant array cuts filter thickness and weight while selectively shielding the 4.9 GHz band.

Conductive strip pads with U-shaped dielectric regions improve RF coupling, cutting insertion loss and spurious signals in compact filters.

Voltage-controlled semiconductor capacitance replaces slow liquid crystal tuning, enabling fast phase shifts with wide range and low power.

An inward-projecting conductor and stepped housing gaps preserve RF isolation in a smaller circulator while limiting magnetic field exposure and cost.

Slots in mushroom-shaped resonators improve adjacent-field coupling bandwidth while preserving resonant frequency and compact filter size.

Mobile perturbator elements tune resonant cavities with lower insertion loss, stable response, and simpler mechanics below 15 GHz.

A metal-patch and one-piece electrode layout rotates liquid crystal molecules to shift microwave phase with lower loss, power use, and size.

Overlapping branch and counter electrodes rotate liquid crystals to shift microwave phase while cutting insertion loss and power consumption.

A suspended metal strip and sliding dielectric cut substrate-related signal loss and heat in remote electrical tilt antennas.

Electrostatic film bridges and stepped driving structures enable multi-step phase shifting with fewer movable parts, lowering loss and improving stability.

Switchable ground planes create selectable true time delays through parasitic capacitance, cutting insertion loss and preserving linearity.

Relay and mitigation circuits reduce weak-reflection phase spread in bent digital phase shifters while shortening layout length.

A compact waveguide LPF design combines synthesis and EM optimization to suppress Ku-band harmonics and higher modes while controlling size.

A quarter-wavelength flange recess turns tolerance gaps into a standing-wave barrier that suppresses radio leakage between connected waveguides.

Using overlapping electrodes and a liquid crystal capacitor, this microwave feed increases phase shift while reducing loss versus single-line shifters.

An MIS capacitor phase shifter replaces liquid crystal bias structures to cut parasitic effects and improve tuning speed and phase range.

A shared drive shaft and selective gear meshing let one motor independently adjust upper and lower MIMO antenna array phase shifters.

Alternating electrical and magnetic coupling helps compact 5G filters cut weight and size while maintaining low loss and harmonic suppression.

Peripheral ground electrodes and branched microstrip structures shorten conductive paths, reducing inductance and enabling larger microwave phase shift.

A perforated silicon dielectric in a MEMS-actuated waveguide cuts insertion loss while delivering large phase shift at 550 GHz.

Mutually compensating inductive and capacitive coupling creates transmission zeros in an in-line resonator filter without damage-prone bypass connectors.

Direct inner-conductor engagement through a dielectric front pad cuts signal loss, simplifies alignment, and supports coaxial switching up to 30 GHz.

A trap resonator and auxiliary coupling create steep pass-band-side attenuation in a dielectric waveguide filter while reducing stages and insertion loss.

A narrowed waveguide section around resonant cavities improves trapping of target frequencies while attenuating higher-frequency noise.