Back to results
US 2020/0091876 A1Published application
Compact Architecture for Multipath Low Noise Amplifier
AssigneepSemi Corporation
InventorJonathan James Klaren
Life of this patent
Estimating the term…
Abstract
Methods and devices used in mobile receiver front end to support multiple paths and multiple frequency bands are described. The presented devices and methods provide benefits of scalability, frequency band agility, as well as size reduction by using one low noise amplifier per simultaneous outputs. Based on the disclosed teachings, variable gain amplification of multiband signals is also presented.
Claims25
A radio frequency (RF) receiver comprising:
- a plurality of current gain blocks;
- and
- a plurality of output loads;
- wherein:
- (i) each current gain block is selectively connected to one or more output loads of the plurality of the output loads;
- (ii) a current gain block of the plurality of current gain blocks is configured to:
- receive an input signal;
- generate one or more amplified signals corresponding to the input signal, and
- (iii) an output load of the plurality of output loads is configured to receive corresponding one or more amplified signals and to generate corresponding one or more output signals.
6 more elements
A method of amplifying a signal with a spectrum comprising multiple frequency bands:
- providing one or more current gain blocks;
- providing one or more output loads;
- connecting each gain block of the one or more current gain blocks to one or more output loads;
- amplifying at least one signal corresponding to one or more frequency bands of the multiple frequency bands to generate one or more amplified signals, and
- driving at least one output loads of the one or more output loads using the one or more amplified signals to generate at least one or more amplified output signals.
2 more elements
A radio frequency (RF) receiver front end comprising:
- a plurality of band filters corresponding to one or more frequency bands representing an input signal;
- one or more band switches;
- one or more current gain blocks connecting each a corresponding band switch of the one or more band switches to one or more output loads;
- wherein:
- each band switch is configured to select at least one frequency band filter of the plurality of band filters;
- a current gain block corresponding to the band switch is configured to selectively tune into the at least one frequency band of the one or more frequency bands;
- the at least one frequency band filter of the one or more frequency band filters receives the input signal to generate a filtered signal;
- the current gain block is configured to receive the filtered signal to generate one or more amplified signals;
- and
- the one or more output loads are configured to receive the one or more amplified signals and to generate corresponding one or more output signals.
7 more elements
Dependencies are inferred from the claim text.