Radio frequency front end system with an integrated transmit/receive switch
First Claim
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1. A Radio Frequency (RF) front end system comprising:
- a power amplifier (PA) configured to couple to a matching network via a port on a transmit (TX) path;
a low noise amplifier (LNA) configured to couple to the matching network via the port on a receive (RX) path, wherein the PA and the LNA are combined together at the port; and
a transmit/receive switch (T/R SW) coupled in series between the port and the LNA, and a non-switchable direct connection formed between the PA and the port; and
wherein an output stage of the PA is configured to perform switching functionality.
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Abstract
A Radio Frequency (RF) front end system and method are disclosed. The RF front end system comprises an antenna, a matching network coupled to the antenna, a power amplifier (PA) coupled to the matching network via a port on a transmit path, a low noise amplifier (LNA) coupled to the matching network via the port on a receive path and at least one transmit/receive switch (T/R SW) coupled between the port and at least one of the PA and LNA.
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Citations
18 Claims
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1. A Radio Frequency (RF) front end system comprising:
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a power amplifier (PA) configured to couple to a matching network via a port on a transmit (TX) path; a low noise amplifier (LNA) configured to couple to the matching network via the port on a receive (RX) path, wherein the PA and the LNA are combined together at the port; and a transmit/receive switch (T/R SW) coupled in series between the port and the LNA, and a non-switchable direct connection formed between the PA and the port; and wherein an output stage of the PA is configured to perform switching functionality. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for creating a Radio Frequency (RF) front end, the method comprising:
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coupling a power amplifier (PA) to a matching network via a port on a transmit (TX) path; coupling a low noise amplifier (LNA) to the matching network via the port on a receive (RX) path, wherein the PA and the LNA are combined together at the port; coupling a transmit/receive switch (T/R SW) in series between the port and the LNA, and providing a non-switchable direct connection between the PA and the port; and combining the PA and the LNA together at the port, wherein an output stage of the PA is configured to perform switching functionality. - View Dependent Claims (18)
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Specification