Switching power amplifier using a frequency translating delta sigma modulator

System and method for on-chip filter tuning

Communication semiconductor integrated circuit device and electrical apparatus

Tunable planar capacitor

Integrated switchless programmable attenuator and low noise amplifier

Tunable matching circuit

Use of a down-bond as a controlled inductor in integrated circuit applications

High performance switch for switched inductor tuned RF circuit

Tuning RF circuits using switched inductors provided in a monolithic integrated circuit

Radio frequency unit analog level detector and feedback control system

Tunable bandpass filter and method thereof

Electric component for communication device and semiconductor device for switching transmission and reception

Semiconductor device

Methods and apparatus for an improved discrete LC filter

Systems and methods for full duplex amplification

Receiver with multi-spectrum parallel amplification

Systems and methods for multi-band power amplifiers

Wideband distributed power amplifier utilizing metamaterial transmission line conception with impedance transformation

Multi-mode envelope tracking amplifier circuit

High power radio frequency amplifier architecture

Multi-band Doherty amplifier device and method therefor