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US 10,476,533 B1Granted
Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5G communication
AssigneesSpeedlink Technology Inc., Georgia Tech Research Corporation
InventorsTaiyun Chi, Hua Wang, Thomas Chen
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a transmit/receive (T/R) switch includes a transmit switch, between a transmit port and an antenna port, a receive switch, between a receive port and the antenna port, a transmit inductor, coupled in parallel between the transmit switch the transmit port, and a receive inductor, coupled in parallel between the transmit switch the transmit port. The T/R switch can be co-designed with a power amplifier (PA) output matching circuit.
Claims20
An electronic circuit for wireless communication, comprising:
- a transmit/receive (T/R) switch, the T/R switch including:
- a transmit switch, between a transmit port and an antenna port;
- a receive switch, between a receive port and the antenna port;
- a transmit inductor, coupled in parallel between the transmit switch and the transmit port;
- and
- a receive inductor, coupled in parallel between the receive switch and the receive port, wherein the transmit and receive switches each include two poles, wherein
- in an “on” position
- a first pole is closed, connecting a respective port to the antenna port,
- a second pole is open, disconnecting a respective port to a common return, and
- in an “off” position
- the first pole is open, disconnecting the respective port from the antenna port, and
- the second pole is closed, connecting the respective port to the common return.
9 more elements
An electronic circuit for wireless communication, comprising
- a transmit/receive (T/R) switch, the T/R switch including:
- a transmit switch, between a transmit port and an antenna port,
- a receive switch, between a receive port and the antenna port,
- a transmit inductor, coupled in parallel between the transmit switch and the transmit port, and
- a receive inductor, coupled in parallel between the receive switch and the receive port;
- a power amplifier (PA) output matching network having a first capacitor coupled, in parallel, to an input port of the matching network circuit;
- a broadband on-chip transformer coupled, in parallel, to the first capacitor;
- and
- a second capacitor coupled, in series, in between the broadband on-chip transformer and an output port of the matching network circuit, wherein the output port of the matching network circuit is coupled to the transmit port of the T/R switch.
6 more elements
A radio frequency (RF) front end circuit, comprising:
- a transmit/receive (T/R) switch, the T/R switch including:
- a transmit switch, between a transmit port and an antenna port;
- a receive switch, between a receive port and the antenna port;
- a transmit inductor, coupled in parallel between the transmit switch and the transmit port;
- and
- a receive inductor, coupled in parallel between the receive switch and the receive port, wherein the transmit and receive switches each include two poles, wherein
- in an “on” position
- a first pole is closed, connecting a respective port to the antenna port,
- a second pole is open, disconnecting a respective port to a common return, and
- in an “off” position
- the first pole is open, disconnecting the respective port from the antenna port, and
- the second pole is closed, connecting the respective port to the common return.
9 more elements
A radio frequency (RF) front end circuit, comprising
- a transmit/receive (T/R) switch, the T/R switch including:
- a transmit switch, between a transmit port and an antenna port,
- a receive switch, between a receive port and the antenna port,
- a transmit inductor, coupled in parallel between the transmit switch and the transmit port, and
- a receive inductor, coupled in parallel between the receive switch and the receive port;
- a power amplifier (PA) output matching network, having a first capacitor coupled, in parallel, to an input port of the matching network circuit;
- a broadband on-chip transformer coupled, in parallel, to the first capacitor;
- and
- a second capacitor coupled, in series, in between the broadband on-chip transformer and an output port of the matching network circuit, wherein the output port of the matching network circuit is coupled to the transmit port of the T/R switch.
6 more elements
Dependencies are inferred from the claim text.