Ultra-wideband non-reflective front-end in multiband system
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorXue Huang
Life of this patent
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Abstract
A network node operating in a communication network can divide a wideband signal into a plurality of sub-bands using a wideband multiplexer. The network node can further pass a portion of a sub-band of the plurality of sub-bands through a wideband circulator of the network node and a second multiplexer to an antenna or processing circuitry.
Claims19
A method of operating a network node in a communications network, the method comprising:
- dividing a wideband signal into a plurality of sub-bands using a wideband multiplexer of the network node, wherein the wideband multiplexer comprises a series of cascading high pass filters, HPFs, and low pass filters, LPFs, that divide the wideband signal into the plurality of sub-bands;
- and
- passing a portion of a sub-band of the plurality of sub-bands through a wideband circulator of the network node and a second multiplexer of the network node to an antenna or processing circuitry of the network node.
A network node operating in a communications network, the network node comprising:
- a wideband multiplexer configured to divide a wideband signal into a plurality of sub-bands;
- a wideband circulator coupled to an output of the wideband multiplexer and including a first port and a second port, the wideband circulator configured to pass a sub-band of the plurality of sub-bands from the first port to a second port;
- and
- a second multiplexer coupled to the second port of the wideband circulator and configured to divide the sub-band into a first portion and a second portion.
A computer program product comprising a non-transitory storage medium including program code to be executed by processing circuitry of a network node operating in a communications network, whereby execution of the program code causes the network node to perform operations comprising:
- dividing a wideband signal into a plurality of sub-bands using a wideband multiplexer of the network node, wherein the wideband multiplexer comprises a series of cascading high pass filters, HPFs, and low pass filters, LPFs, that divide the wideband signal into the plurality of sub-bands;
- and
- passing a portion of a sub-band of the plurality of sub-bands through a wideband circulator of the network node and a second multiplexer of the network node to an antenna or processing circuitry of the network node.
Dependencies are inferred from the claim text.