Double-port multi-through RF switch
AssigneeNavini Networks, Inc.
InventorXinguang Xu
Life of this patent
Estimating the term…
Abstract
An improved radio frequency (RF) switch circuit is disclosed. The RF switch is typically used in a communication system having one or more transmission paths and one or more reception paths. The RF switch has a first set of diodes connected in parallel among themselves, and a second set of diodes connected in parallel among themselves. Each diode of the second set is coupled with at least one predetermined diode in the first set in a parallel manner by sharing a connection node that is coupled further with at least one antenna. A transmitter is coupled to the first set of diodes and the receiver is separately coupled to the second set of diodes, wherein either one of the first set of diodes or the second set of diodes are activated to establish one path while cutting off all other paths at the same time.
Claims20
A radio frequency (RF) switch circuit used in a communication system having one or more transmission paths and one or more reception paths, comprising:
- a first set of diodes connected in parallel among themselves and coupled to a transmitter;
- and
- a second set of diodes connected in parallel among themselves and coupled to a receiver, each diode of the second set being coupled with at least one predetermined diode in the first set in a parallel manner by sharing a connection node that is coupled with at least one antenna,
- wherein at least one of either the first set of diodes or the second set of diodes is activated to establish one transmission or reception path while cutting off all other paths at the same time.
A radio frequency (RF) switch matrix used in communication systems for providing at least one transmission path passing RF signals from at least one transmitter to at least one antenna, and at least one reception path for receiving the RF signals from at least one antenna to at least one receiver, comprising:
- a first set of diodes connected in parallel among themselves and coupled to the transmitter and a transmitter control voltage circuit;
- and
- a second set of diodes connected in parallel among themselves and coupled to the receiver and a receiver control voltage circuit, each diode of the second set being coupled with at least one predetermined diode in the first set in a parallel manner by sharing a connection node that is coupled with one or more antennas;
- an antenna control voltage circuit coupled to each antenna,
- wherein at least one of the first set of diodes or the second set of diodes is activated to establish one transmission or reception path while cutting off the other paths at the same time by controlling the transmitter control voltage circuit, the receiver control voltage circuit and the antenna control voltage circuit.
A method for controlling radio frequency (RF) switch matrix used in communication systems for providing one or more transmission paths passing RF signals from one or more transmitters to at least one antenna, and one or more reception paths for receiving the RF signals from at least one antenna to one or more receivers, comprising:
- imposing a transmitter control voltage to a first end of a first set of diodes, the first set of diodes being connected in parallel among themselves and coupled to the transmitters on the first end;
- and
- imposing a receiver control voltage to a first end of a second set of diodes, the second set of diodes being connected in parallel among themselves and coupled to the receivers on the first end, each diode of the second set being coupled with at least one predetermined diode in the first set in a parallel manner by sharing a connection node that is coupled with one or more antennas;
- imposing one or more antenna control voltages at the second end of first and second set of diodes,
- wherein at least one of either the first set of diodes or the second set of diodes is activated to establish one transmission or reception path for passing communication signals through a selected antenna while cutting off all other paths at the same time by the imposed transmitter control voltage, receiver control voltage and antenna control voltage.
Dependencies are inferred from the claim text.