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METHODS FOR OPERATING RADIO FREQUENCY DEVICES HAVING TRANSMIT LOOPBACK FUNCTIONALITY

  • US 20180262231A1
  • Filed: 03/08/2018
  • Published: 09/13/2018
  • Est. Priority Date: 03/10/2017
  • Status: Active Grant
First Claim
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1. A method of operating a front end module having transmit loopback functionality, the method comprising:

  • conducting on a transmit loopback path a loopback signal from an output of a power amplifier to a receive port, the transmit loopback path including a first switch coupled between the output of the power amplifier and the receive port; and

    conducting on a receive path a radio frequency receive signal from an antenna port to the receive port, the receive path including a second switch coupled between the antenna port and the receive port, the receive path without the first switch.

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