Patent classifications
H04Q2213/13291
Selective switching of frequency multiplexed microwave signals using cascading multi-path interferometric josephson switches with nonoverlapping bandwidths
A cascading selective microwave switch (cascade) includes a set of Josephson devices, each Josephson device in the set having a corresponding operating bandwidth of microwave frequencies, wherein different operating bandwidths have different corresponding center frequencies. A series coupling is formed between first Josephson device from the set and an n.sup.th Josephson device from the set. the series coupling causes the first Josephson device in an open state to reflect back to an input port of the first Josephson device a signal of a first frequency from a frequency multiplexed microwave signal (multiplexed signal) and the n.sup.th Josephson device in a closed state to transmit a signal of an n.sup.th frequency in the multiplexed signal from an input port of the n.sup.th Josephson device to an output port of the n.sup.th Josephson device.
SELECTIVE SWITCHING OF FREQUENCY MULTIPLEXED MICROWAVE SIGNALS USING CASCADING MULTI-PATH INTERFEROMETRIC JOSEPHSON SWITCHES WITH NONOVERLAPPING BANDWIDTHS
A cascading selective microwave switch (cascade) includes a set of Josephson devices, each Josephson device in the set having a corresponding operating bandwidth of microwave frequencies, wherein different operating bandwidths have different corresponding center frequencies. A series coupling is formed between first Josephson device from the set and an n.sup.th Josephson device from the set. the series coupling causes the first Josephson device in an open state to reflect back to an input port of the first Josephson device a signal of a first frequency from a frequency multiplexed microwave signal (multiplexed signal) and the n.sup.th Josephson device in a closed state to transmit a signal of an n.sup.th frequency in the multiplexed signal from an input port of the n.sup.th Josephson device to an output port of the n.sup.th Josephson device.
Selective switching of frequency multiplexed microwave signals using cascading multi-path interferometric Josephson switches with nonoverlapping bandwidths
A cascading selective microwave switch (cascade) includes a set of Josephson devices, each Josephson device in the set having a corresponding operating bandwidth of microwave frequencies, wherein different operating bandwidths have different corresponding center frequencies. A series coupling is formed between first Josephson device from the set and an n.sup.th Josephson device from the set. the series coupling causes the first Josephson device in an open state to reflect back to an input port of the first Josephson device a signal of a first frequency from a frequency multiplexed microwave signal (multiplexed signal) and the n.sup.th Josephson device in a closed state to transmit a signal of an n.sup.th frequency in the multiplexed signal from an input port of the n.sup.th Josephson device to an output port of the n.sup.th Josephson device.
Frequency division duplex wireless communication apparatus and method
A Frequency Division Duplex (FDD) wireless communication apparatus is provided. The FDD wireless communication apparatus includes a first antenna configured to one of transmit and receive, a second antenna configured to receive, and a switch configured to selectively connect one of the first antenna and the second antenna to a receiver.