Inventor

WHITEFIELD DAVID SCOTT

US76 patents

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

WHITEFIELD DAVID SCOTT

SKYWORKS SOLUTIONS INC

Apparatus and methods for reconfigurable directional couplers in an RF transceiver with controllable capacitive coupling

Apparatus and methods for reconfigurable directional couplers in an RF transceiver with selectable phase shifters

Power amplification system with programmable load line

Transformer-based doherty power amplifier

Dual serial/parallel interface devices and switching components

Stack device having voltage compensation

Electromagnetic couplers for multi-frequency power detection

Field-effect transistor stack voltage compensation

Electromagnetic couplers with multi-band filtering

Non-uniform spacing in transistor stacks

Radio-frequency isolation using cavity formed in interface layer

Apparatus for reconfigurable directional couplers in an RF transceiver with controllable capacitive coupling

Methods for reconfiguring directional couplers in an RF transceiver

Apparatus for reconfigurable directional couplers in an RF transceiver with selectable phase shifters

Backside cavity formation in semiconductor devices

Cavity formation in interface layer in semiconductor devices

Cavity formation in semiconductor devices

RF coupler with adjustable termination impedance

Radio-frequency switch having stack of non-uniform elements

Radio-frequency isolation using porous silicon

Body contacts for field-effect transistors

Stacked auxiliary field-effect transistor configurations for radio frequency applications

Integrated switch-filter network

Radio frequency isolation using substrate opening

Integrated filter and directional coupler assemblies

Tunable active silicon for coupler linearity improvement and reconfiguration

RF coupler having coupled line with adjustable length

RF coupler with decoupled state

RF coupler with switch between coupler port and adjustable termination impedance circuit

Substrate opening formation in semiconductor devices

Devices and methods related to packaging of radio-frequency devices on ceramic substrates

Radio-frequency isolation cavities and cavity formation

Cavity formation in backside interface layer for radio-frequency isolation

Doherty power amplifier for radio-frequency applications

Cavity formation using sacrificial material

Transistor layout with low aspect ratio

Main-auxiliary field-effect transistor configurations

Main-auxiliary field-effect transistor configurations

Switches with main-auxiliary field-effect transistor configurations

Switches with main-auxiliary field-effect transistor configurations

Main-auxiliary field-effect transistor configurations with an auxiliary stack and interior parallel transistors

Transmission-line-based radio-frequency switching

Transistor finger spacing and dimension variation in electronic devices

Non-symmetric body contacts for field-effect transistors

Devices and methods related to packaging of radio-frequency devices on ceramic substrates

Self-adjusting electromagnetic coupler with automatic frequency detection

Self-adjusting electromagnetic coupler with automatic frequency detection

Voltage distribution in transistor stacks using non-uniform transistor dimensions

MEMS devices having discharge circuits

WHITEFIELD DAVID SCOTT

Dual mode serial/parallel interface and use thereof in improved wireless devices and switching components