Loop Antennas With Ferromagnetic Core TRIZ Cases

Segmented quadrant cores boost Z-axis capacity by 30% without increasing thickness.

An offset antenna coil positions a magnetic material core to concentrate the induction field along a battery pack side surface.

A planar conductor antenna guides magnetic flux through a large loop parallel to the casing, preventing obstruction by metal portions.

High permeability ring resonators maintain bandwidth and efficiency at low heights, resolving the trade-off between aerodynamic drag and signal performance.

A figure-eight coil antenna wraps around device surfaces to establish near field coupling through multiple sides.

High-permeability magnetic cores concentrate flux to maintain signal strength across varying orientations in subsurface mining environments.

An isolation barrier combines dielectric loaded corrugations with radar absorbing material to reduce electromagnetic coupling between antennas.

Winding an antenna coil in the clearance between a conductive body and casing wall achieves downsizing while maintaining favorable communication properties.

Partition walls isolate coils to reduce parasitic capacity, boosting quality factor without extra support structures.

Asymmetric coil windings reduce eddy current losses from metallic members during wireless power transmission.

A two-axis receiver antenna detects LF fields from multiple vehicle antennas to wake tire sensors and transmit identification signals.

A near-field antenna apparatus uses a conductive member to generate eddy currents that enhance magnetic flux in the Z-axis direction.

Positioning the near field communication antenna between the display and printed circuit board reduces device thickness while improving antenna performance.

A polymer magnetic shielding layer with embedded ferrite particles suppresses eddy currents in wireless electronic device antennas.

A loopstick antenna uses a mechanically actuated magnetoelastic core to modulate magnetic permeability for signal transmission.

A spiral antenna module uses segmented magnetic parts penetrating the coil core to maintain radiation efficiency while supporting both NFC and MST functions.

An LTCC magnetic antenna uses an intermediate magnetic layer to prevent resonant frequency shifts when attached to metallic objects.

Segmented metallic layers on a substrate enhance magnetic coupling without restricting coil layout freedom or increasing production complexity.

A segmented antenna coil paired with a sheet-like conductor featuring a side opening and slit to optimize magnetic flux collection.

A coil antenna stacks conductors on a magnetic core to increase current path cross-section and lower conductor loss.

Flange portions on series-connected rod cores constrain axial misalignment and gap variations to stabilize inductance values.

A rotatable support apparatus positions a coil for inductive charging, reducing electromagnetic interference by decoupling the resonant circuit when not in use.

Sliding contacts adjust loop perimeters to expand resonant frequency ranges, resolving narrow tolerance constraints during post-assembly tuning.

Fe-Co alloy powder reduces magnetic loss tangent while maintaining high real permeability for antenna applications.

A wireless antenna unit paired with a magnetic member covering at least 90 percent of the pattern perimeter to stabilize resonant frequency.

A magnetic field shielding sheet uses a protective member on its side surface to prevent micro-piece separation and oxidation.

Segmented circuit board regions absorb bending stress to prevent wiring damage while maintaining signal transmission quality.

Magnetic-covered series inductor decouples impedance matching from loop antenna geometry, maintaining stable resonance near metal objects.

An integrated antenna unit merges with the loudspeaker housing to resolve volume constraints while enhancing low-frequency efficiency.

Orthogonal antennas on perpendicular aircraft panels generate opposite polarization signals.

Asymmetric magnetic pieces in a composite sheet optimize field distribution, reducing energy loss during wireless power transmission.

Embedding a flex-antenna assembly with ferrite shielding into the PCB reduces handheld device thickness by 0.42 mm without complicating assembly processes.

Continuous ribs on the resin antenna case distribute mechanical loads to external members, improving strength without increasing weight or manufacturing cost.

A ferrite antenna uses parallel ferromagnetic rods to couple a secondary contour with the main coil, enabling efficient impedance matching.

An asymmetric planar conductor facing a spiral coil enhances magnetic flux density, preventing frequency shifts while maintaining compact device size.

Perpendicular loop orientation prevents primary field interference, ensuring consistent wireless communication regardless of wheel rotation position.