| 摘要 |
PURPOSE: A low noise amplifier using a common gate amplifier structure is provided to reduce a noise index of a low amplifier by forming first and second amplifiers in a common gate amplifier. CONSTITUTION: A first amplifier(200) amplifies an inputted RF signal at first, and a second amplifier(202) is electrically connected to the first amplifier. The second amplifier secondly amplifies the RF signal amplified by the first amplifier. An output unit(206) is electrically connected to the second amplifier. The first and/or second amplifiers have common gate amplifier or common base amplifying structure. |
