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HMC460LC5 vgg problem

Hello,
I would like to ask about the question of the gain of the HMC460LC5 changes with the input power. If my input power is below -1dBm, the current changes to 140mA, the amplifier has no gain, and the VGG negative voltage is -0.9V as recommended by the data sheet.I would like to ask if there is a way to amplify the amplifier under the constant fixed negative voltage -0.9V?

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