RF RECEIVER HAVING CASCADED FILTERS AND AN INTERMEDIATE AMPLIFIER STAGE

An RF receiver includes first and second RF filter stages and an amplifier stage. An output terminal of the first RF filter stage is coupled to an input terminal of the amplifier stage, and an output terminal of the amplifier stage is coupled to an input terminal of the second RF filter stage. The f...

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Bibliographic Details
Main Author ABDELMONEM, AMR
Format Patent
LanguageEnglish
French
German
Published 11.07.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
TRANSMISSION
WAVEGUIDES
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Summary:An RF receiver includes first and second RF filter stages and an amplifier stage. An output terminal of the first RF filter stage is coupled to an input terminal of the amplifier stage, and an output terminal of the amplifier stage is coupled to an input terminal of the second RF filter stage. The first and second RF filter stages are not identical, inasmuch as, for instance, the first and second RF filter stages may provide different selectivities. The first RF filter stage may include a low loss RF filter to establish a low noise figure for the RF receiver. The isolation provided by the amplifier stage permits the first and second RF filter stages to include high-order RF filters or, alternatively, multiple low order RF filters.
Bibliography:Application Number: EP19990942013