jianke
Member level 3
Help: Independently Amplify Voltage or Current at 2GHz ?
Hi all,
Recently I met an interesting question for RF amplifier design. In the design, at a frequency of about 2 GHz (e.g. 2.4 GHz), we want to design an amplifier which can independently amplify "current" or independently amplify "voltage". In the RF power amplifier design, the voltage and current are amplified at the same time.
As we know, today Operational Amplifiers (op-amp) can work at RF. I wonder whether an Op-Amp (e.g. VOA, OTA, CFA, CC) can do this job or not ? If not, at about 2 GHz, are there such current amplification circuits which can mainly amplify the current (with small small voltage gain), or voltage amplification circuits which can mainly amplify the voltage (with small small current gain) ?
At RF frequency, typically at about 2 GHz, I cannot find such amplification circuits which can independently (or mainly) amplify the "current" or "voltage", respectively. Doesn't anyone have an idea or any comments? It is an imperative duty! Thanks!
Hi all,
Recently I met an interesting question for RF amplifier design. In the design, at a frequency of about 2 GHz (e.g. 2.4 GHz), we want to design an amplifier which can independently amplify "current" or independently amplify "voltage". In the RF power amplifier design, the voltage and current are amplified at the same time.
As we know, today Operational Amplifiers (op-amp) can work at RF. I wonder whether an Op-Amp (e.g. VOA, OTA, CFA, CC) can do this job or not ? If not, at about 2 GHz, are there such current amplification circuits which can mainly amplify the current (with small small voltage gain), or voltage amplification circuits which can mainly amplify the voltage (with small small current gain) ?
At RF frequency, typically at about 2 GHz, I cannot find such amplification circuits which can independently (or mainly) amplify the "current" or "voltage", respectively. Doesn't anyone have an idea or any comments? It is an imperative duty! Thanks!
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