Radio frequency switch comprising heterojunction biopolar transistors
AssigneeAvago Technologies Wireless IP (Singapore) Pte. Ltd.
InventorsMoon-Suk Jeon, Chan Hoe Koo, Hyung Bin Lee, Jung Min Oh
Life of this patent
Estimating the term…
Abstract
A radio-frequency (RF) switch comprises first and second heterojunction bipolar transistors (HBTs) that control transmission of an RF input signal between an input terminal and an output terminal. In some embodiments, the RF input signal is transmitted from the input terminal to the output terminal where the first and second HBTs are turned ON, and otherwise the RF input signal is not transmitted from the input terminal to the output terminal.
Claims11
A radio-frequency (RF) switch configured to control transmission of an RF input signal from an input terminal to an output terminal, comprising:
- a first heterojunction bipolar transistor (HBT) connected in parallel with a path extending between the input terminal and the output terminal and comprising an emitter terminal connected to ground and a collector terminal connected to a common terminal;
- and
- a second HBT connected in parallel with the path and comprising a collector terminal connected to ground and an emitter terminal connected to the common terminal.
The RF switch of claim I, wherein the first and the second HBTs are formed on a single wafer and arranged in opposite directions.
A radio-frequency (RF) switch configured to control transmission of an input RF signal from an input terminal to an output terminal, comprising:
- a first heterojunction bipolar transistor (HBT) comprising an emitter terminal connected to the input terminal and a collector terminal connected to the output terminal;
- and
- a second HBT comprising an collector terminal connected to the input terminal and an emitter terminal connected to the output terminal.
Dependencies are inferred from the claim text.