Inventor

HU HONGFEI

US59 patents

⚠️ This page may combine multiple inventors who share the name “HU HONGFEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HU HONGFEI

APPLE INC

Electronic devices having indirectly-fed slot antenna elements

Electronic device having multiple antennas with shared structures for near-field communications and non-near-field communications

Removable electronic device case with supplemental wireless circuitry

Electronic device with passive antenna retuning circuitry

Electronic device with shared antenna structures and balun

Electronic devices with hybrid antennas

Electronic device with hybrid inverted-F slot antenna

Electronic device antenna with embedded parasitic arm

Electronic device antennas having switchable feed terminals

Electronic device antennas having isolation elements

Wireless devices having antennas for covering multiple frequency bands

Electronic devices having differential-fed near-field communications antennas

Multiple-input and multiple-output antenna structures

Adjustable multiple-input and multiple-output antenna structures

Antenna tuning components in patterned conductive layers

Electronic device antenna with switchable return paths

Electronic device with shared antenna structures and balun

Electronic device antenna with isolation mode

Electronic device antenna with interference mitigation circuitry

Electronic device antenna with reduced lossy mode

Electronic device with adjustable wireless circuitry

Antenna with tunable high band parasitic element

Electronic device antenna with multiple feeds for covering three communications bands

Methods and apparatus for performing coexistence testing for multi-antenna electronic devices

Electronic devices with coexisting antennas

Wireless devices having antenna isolation structures

Electronic devices with multiple low band antennas

Electronic device antennas having multiple signal feed terminals

Electronic device having multiple antennas with shared structures for near-field communications and non-near-field communications

Electronic device antenna with switchable return paths

Electronic device antenna carrier coupled to printed circuit and housing structures

Electronic device with peripheral hybrid antenna

Electronic device having sensors and antenna monitor for controlling wireless operation

Removable electronic device case with supplemental antenna element

Electronic devices with distributed slot antenna structures

Wireless devices having co-existing antenna structures

Switched antenna assembly

Electronic device antenna with embedded parasitic arm

Electronic device with multiple antenna feeds and adjustable filter and matching circuitry

Adaptive antenna tuning system

Electronic devices with multiple low band antennas

Adaptive antenna tuning system

Multiple-input and multiple-output antenna structures

Electronic device having stacked-patch antenna with floating ground via

Ultra-wideband antenna assembly

PASCOLINI MATTIA

Antenna with switchable inductor low-band tuning

ZHU JIANG

Antenna structures having slot-based parasitic elements

DARNELL DEAN F

Tunable antenna system with multiple feeds

MOW MATTHEW A

Methods for characterizing tunable radio-frequency elements

HU HONGFEI

Tunable antenna system