Loop Antennas With Ferromagnetic Core TRIZ Cases

Infinite baluns cancel stray RF currents on coaxial cables, stabilizing radiation patterns and noise rejection across wide frequency ranges.

Segmented magnetic cores expand the antenna volume vertically to improve signal reception without increasing the device footprint.

Half-moon magnetic members shield drive units from external fields, maintaining antenna sensitivity for accurate radio wave timepieces.

Laser ablation reduces copper track thickness below skin depth limits, enabling multiple antenna turns and enhanced inductive coupling.

A thin film antenna assembly mounts between substructure and covering to generate electromagnetic fields.

A flexible circuit board mounted on a support tube forms an antenna loop that operates across a full frequency band while maintaining performance when bent.

Segmented bar antennas use flexible core joints to prevent breakage under impact while maintaining stable communication frequency.

Parallel coils on a magnetic core increase combined inductance, overcoming metallic interference to extend communication distance.

A near field communication antenna module uses a radiation pattern winding around a magnetic body to enable signal recognition on rear and side surfaces of portable terminals.

A magnetic core antenna device couples RF energy to existing conductors through electromagnetic induction.

Circular high impedance surfaces provide 16% greater bandwidth and 2.5 dB additional gain compared to rectangular designs while maintaining low profile.

An accessory integrates a radio signal transmission device and omnidirectional antenna to replace a separate vehicle key.

A magnetic loop antenna arrangement uses a flux-guiding layer to align the magnetic field and prevent eddy currents in the device casing.

An integrated antenna component uses orthogonal windings on a ferrite core to receive signals in all three dimensions, reducing device complexity and cost.

An antenna device uses an inductive coil to drive current through connecting conductors between spaced conductor surfaces.

A near-field electromagnetic induction antenna uses a conductive surface that geometrically conforms to non-planar host surfaces.

Magnetic particles in mold resin guide flux to the coil, reducing eddy current interference on metal commodities.

A reading device antenna uses a shield portion to bias magnetic flux from a coil.

Resilient bobbin portions absorb drop impact forces through elastic deformation and friction, eliminating separate dampers.

An asymmetric core shapes the magnetic field to reject external noise, maintaining signal-to-noise ratio for reliable ear-to-ear communication.

Placing an NFC antenna below the keyboard minimizes signal interference from metal housings while maintaining structural integrity.

RFID tag replaces magnetic detection to differentiate monuments from ferrous objects, ensuring accurate location data retrieval.

Segmented conductive surfaces generate fringing fields within a host structure, resolving signal fading in compact wearable devices.

Segmented X-axis and Y-axis magnetic core bars allow independent coil winding without overlap, improving reception sensitivity while reducing thickness.

A coil antenna uses a foamed component to absorb static and sudden loads.

A helical antenna overlaps a magnet core to generate magnetic fields in three spatial dimensions for robust near-field communication.

A conductive member and coupling line connect via connecting conductors to form a unified current path for the antenna device.

Ferrite-loaded and dielectric-filled metallic cavity regions create a resonant circuit that maintains detection on conducting surfaces without thick spacers.

A magnetic sheet concentrates flux toward an antenna coil, overcoming eddy current reflection from circuit boards.

Grooved flange design positions outer wire segments to prevent board contact during mounting.

Segmented ferrite sheets bonded to a flexible substrate prevent breakage during ring formation, enabling omnidirectional NFC communication.

A segmented cross-shaped antenna coil core uses interlocking arms to enable independent winding and three-directional radio signal reception.

A lossy ferrite-core and dielectric-shell structure enables compact axial-mode helical antennas for high-frequency applications.

Collocated orthogonal antennas eliminate depth interpolation to resolve anisotropy measurement challenges.

Cobased amorphous magnetic alloy thin strips form a laminate that improves magnetic flux density while reducing size and thickness compared to ferrite cores.

Slits segment the magnetic body to control flux density and suppress volume changes, improving recognition rates during wireless communication.

A multilayer antenna device uses segmented ground conductors connected by an asymmetric interlayer conductor to maintain radiation efficiency.

A multiferroic antenna merges piezoelectric and magnetostrictive layers on a substrate to generate radio frequency electromagnetic waves via mechanical strain.

Segmenting the resin base and metal plate eliminates complex molds and high heat resins while maintaining reliable soldering durability.

Embedding components in substrate recesses reduces antenna module thickness while maintaining mounting flexibility for mobile devices.

Ferrite shielding around non-magnetic metallic cores boosts inductance, resolving eddy current losses that degrade wireless link robustness in compact devices.

Segmented grounding rings couple antenna currents to sensor board traces, preventing signal loss from wireless charging coil interference.

A planar antenna coil incorporates a magnetic sheet to guide flux through a metallic cover.

A wire loop and ferrite rod antenna driven 90 degrees out of phase by a hybrid network provides omnidirectional coverage in obstructed environments.

A coil antenna coupled to a planar conductor creates an extended effective area through electromagnetic induction.

Magnetic antenna structures with spatially varying geometry profiles concentrate magnetic fields locally to enhance signal transmission efficiency.

A hybrid transceiver merges toroid and band gap antennas in series to transmit electromagnetic signals through drill strings.

Core-shell metal powder reduces eddy current loss in GHz band while maintaining magnetic permeability.

Shielding members prevent mutual antenna interference while the housing structure maintains mechanical rigidity for reliable MST functionality.

Segmented antenna patterns eliminate directional alignment requirements while conductive plates shield electromagnetic interference from internal components.