Skyworks Solutions, Inc.

Darryl Earl Evans

David Scott Whitefield

Nuttapong Srirattana

David Ryan Story

Philip Howard Thompson

Edward F Lawrence

Norbert Andrew Schmitz

Mark N Ayvazian

David M Johnson

Disclosed are systems, circuits and methods related to low-loss bypass of a radio-frequency (RF) filter or diplexer. In some embodiments, a switching network circuitry can include a first switch that has an input pole configured to receive a radio-frequency (RF) signal, a pass-through throw configured to be connectable to the input pole to allow routing of the RF signal to an RF component, and at least one dedicated bypass throw configured to be connectable to the input pole and at least one bypass conduction path. The switching network circuitry can further include a second switch that has a pole and a throw, and is connectable between an output of the RF component and the bypass conduction path. Use of the dedicated bypass throw(s) in the first switch allows implementation of low-loss bypass of the filter or diplexer.

Radio frequency architectures and methods providing switchable bypass and pass-through paths

Systems, circuits and methods related to low-loss bypass of a radio-frequency filter or diplexer

An exemplary antenna switching circuit comprises first, second, third and fourth switches. The first switch is activated by a first control signal for establishing a connection between a first transmit port and an antenna; the second switch is activated by a second control signal for establishing a connection between a second transmit port and the antenna; the third switch is activated by a third control signal for establishing a connection between a first receive port and the antenna; and the fourth switch is activated by the third control signal for establishing a connection between a second receive port and the antenna. With this arrangement, the first receive port and the second receive port are simultaneously connected to the antenna when the third switch and the fourth switch are activated by the third control signal.

Efficient multiple-band antenna switching circuit

Growing community of inventors

Nashua, NH, United States of America

Darryl Earl Evans