RADIO FREQUENCY (RF) SIGNAL POWER DETECTOR USING DIFFERENT POWER RAILS TO RECEIVE CURRENTS FROM WHICH POWER-INDICATING VOLTAGE IS GENERATED

RADIO FREQUENCY (RF) SIGNAL POWER DETECTOR USING DIFFERENT POWER RAILS TO RECEIVE CURRENTS FROM WHICH POWER-INDICATING VOLTAGE IS GENERATED

An aspect relates to an apparatus including a radio frequency (RF) signal power detector. The RF signal power detector includes a first current source configured to generate a first current based on a power level of a first RF signal; a transimpedance amplifier (TIA) configured to generate a first v...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIU, Li, ABOUZIED, Mohamed, WANG, Chuan, PANIKKATH, Vinod
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Beschreibung
Zusammenfassung:An aspect relates to an apparatus including a radio frequency (RF) signal power detector. The RF signal power detector includes a first current source configured to generate a first current based on a power level of a first RF signal; a transimpedance amplifier (TIA) configured to generate a first voltage based on the first current, wherein the TIA is coupled between a first upper voltage rail and a lower voltage rail; and a second current source configured to generate a second current related to the first current, wherein the first and second current sources are coupled in series between a second upper voltage rail and the lower voltage rail.