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AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsDaniele MASTANTUONO, Sven MATTISSON, Roland STRANDBERG, Lars SUNDSTRÖM
Estimating the term…
A radio frequency receiver having a plurality of parallel receiving paths, wherein each path can receive a radio frequency signal in one of a plurality of radio frequency bands and amplify the received signal in a low noise amplifier. The amplified signals from the plurality of parallel paths are combined to one combined radio frequency signal in a common summation node and down-converted to a lower frequency signal in a mixer circuit. Each low noise amplifier comprises a low noise transconductance circuit providing a current signal to drive the common summation node, and an automatic gain control circuit in each path compensates for variations in signal strength independently of signal strengths of signals received by the other receiving paths. The receiver is suitable for simultaneous multiple band reception, where received signal strength can vary between the frequency bands.
A radio frequency receiver configured to receive a plurality of radio frequency bands, the radio frequency receiver comprising a plurality of parallel receiving paths, each receiving path being configured to receive a radio frequency signal in one of the plurality of radio frequency bands and to amplify the received radio frequency signal in a low noise amplifier, the receiver being configured to combine amplified radio frequency signals from the plurality of parallel receiving paths to one combined radio frequency signal in a common summation node and to down-convert the combined radio frequency signal to a lower frequency signal in a mixer circuit each one of the low noise amplifiers comprising:
A wireless communications device comprising at least one radio frequency receiver, the at least one radio frequency receiver configured to receive a plurality of radio frequency bands, the radio frequency receiver comprising a plurality of parallel receiving paths, each receiving path being configured to receive a radio frequency signal in one of the plurality of radio frequency bands and to amplify the received radio frequency signal in a low noise amplifier, the receiver being configured to combine amplified radio frequency signals from the plurality of parallel receiving paths to one combined radio frequency signal in a common summation node and to down-convert said combined radio frequency signal to a lower frequency signal in a mixer circuit, each one of the low noise amplifiers comprising:
A method of receiving a plurality of radio frequency bands in a radio frequency receiver comprising a plurality of parallel receiving paths, the method comprising the steps of:
Dependencies are inferred from the claim text.