Transmit/receive switch for an RF transceiver
AssigneeKoninklijke Philips Electronics N.V.
InventorHendrik Arend Visser
Life of this patent
Estimating the term…
Abstract
A transceiver for radio frequency signals has a transmit branch and a receive branch that are coupled to an antenna feed point The receive branch has a network with an input node and an output node. The input node is coupled to the antenna feed point and the output node is coupled to a low noise amplifier in the receive branch. The network is configured such that in a transmit node of the transceiver, the input node is switched as an open circuit caused by switching the output node as a short circuit.
Claims18
A transceiver for radio frequency signals, said transceiver comprising:
- a transmit branch that is coupled to an antenna feed point;
- a receive branch comprising a first network with an output node and with an input node that is coupled to said antenna feed point, said first network being configured such that in a transmit mode of said transceiver said input node is switched as an open circuit by switching said output node as a short circuit.
A transceiver for radio frequency signals, said transceiver comprising:
- a transmit branch that is coupled to an antenna feed point;
- a receive branch comprising first network means with an output node and with an input node that is coupled to said antenna feed point, said first network means being configured such that in a transmit mode of said transceiver said input node is switched as an open circuit by switching said output node as a short circuit.
A radio frequency transceiver module for use in a transceiver, said radio frequency transceiver module comprising:
- a transmit branch that is coupled to an antenna feed point;
- a receive branch comprising first network means with an output node and with an input node that is coupled to said antenna feed point, said first network means being configured such that in a transmit mode of said radio frequency transceiver module said input node is switched as an open circuit by switching said output node as a short circuit.
An apparatus with a transceiver for radio frequency signals, said transceiver comprising:
- a transmit branch that is coupled to an antenna feed point;
- a receive branch comprising a first network with an output node and with an input node that is coupled to said antenna feed point, said first network being configured such that in a transmit mode of said transceiver said input node is switched as an open circuit by switching said output node as a short circuit.
Dependencies are inferred from the claim text.