Radio frequency switch driver
AssigneeIceye Oy
InventorSergei Ossif
Life of this patent
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Abstract
An RF switching circuit for switching RF signals, the RF switching circuit comprises one or more RF switch drivers and one or more RF switches, the RF switch drivers configured to drive the one or more RF switches by supplying power to the one or more RF switches, the RF switch driver comprising an isolated gate driver comprising one or more inputs, one or more outputs, and electrical separation between the input circuitry and the output circuitry of the isolated gate driver, the RF switch driver configured to receive an input signal indicating when the one or more RF switches should be turned on and/or off, and to send in response an appropriate signal at the appropriate voltage to the one or more RF switches to turn them on or off according to the input signal.
Claims21
A system for switching one or more antennas between transmit and receive modes, the system comprising:
- a power amplifier and a low-noise amplifier for each antenna arranged to amplify RF signals during the transmit and receive modes of the antenna respectively;
- and
- a RF switching circuit, wherein the RF switching circuit comprises:
- one or more RF switches, each RF switch arranged to connect one of the amplifiers to the corresponding antenna during the respective transmit or receive modes, and
- first and second RF switch drivers, connected to the one or more RF switches for driving the one or more RF switches during the respective transmit and receive modes of the one or more antennas, wherein each RF switch driver comprises an isolated gate driver arranged to receive a periodic switching signal.
Dependencies are inferred from the claim text.