Invention Grant
- Patent Title: Low loss transmitter receiver switch with transformer matching network
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Application No.: US16931462Application Date: 2020-07-17
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Publication No.: US11218183B2Publication Date: 2022-01-04
- Inventor: Steven Callender , Christopher Hull , Stefano Pellerano , Woorim Shin , Ka Chun Kwok
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: 2SPL Patent Attorneys PartG mbB
- Agent Yong Beom Hwang
- Main IPC: H04B1/48
- IPC: H04B1/48 ; H03F1/56 ; H03F3/21 ; H03H7/38

Abstract:
A transmit receive switch (TRSW) system is disclosed. The system has a transmission line, a transformer based matching network, a shunt switch, an amplifier and circuitry. The transmission line is connected to an antenna port. The transformer based matching network is connected to the transmission line and has a first coil and a second coil, wherein the second coil is connected to the transmission line. The amplifier can be configured as a shunt switch when inactive. The shunt switch, including the amplifier configured as the shunt switch, can be connected to the first coil of the transformer based matching network. The circuitry is configured to cause the shunt switch to be ON during an inactive mode and create a short across the first coil. Combined, the length of transmission line needed to complete the impedance transformation is reduced, thereby lowering the overall insertion loss of the transmit/receive switch.
Public/Granted literature
- US20210044318A1 LOW LOSS TRANSMITTER RECEIVER SWITCH WITH TRANSFORMER MATCHING NETWORK Public/Granted day:2021-02-11
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