Abstract: A post-mixer amplifier device which receives and processes signals for use in a software-defined radio integrated circuit is provided. The post-mixer amplifier device includes but is not limited to a voltage amplifier having first and second inputs and a first output, a positive signal output connected with the first output of the voltage amplifier, and a positive signal input connected with a first bipolar junction transistor along a first pathway. The first bipolar junction transistor includes but is not limited to a first collector connected with a the first input of the voltage amplifier and a first emitter connected with an second output of the push-pull unity gain follower and forming a first current feedback pathway. The first bipolar junction transistor is driven with a passive resistive load.

Abstract: A method (1100, 1200) of generating a composite mitigation signal (216, 902, 1002) is presented. The composite mitigation signal includes an odd integer (N) of transitions (310, 312) between a first amplitude and a second amplitude of the composite mitigation signal. Successive sets of the transition bursts are separated by a desired phase delay or time delay (330), or such separations are defined by a base signal (416) having a frequency equal to a fundamental frequency of the composite mitigation signal. The composite signal generators (222, 900, 1000) that generate the composite mitigation signal are also presented.

Abstract: A method (1100, 1200) of generating a composite mitigation signal (216, 902, 1002) is presented. The composite mitigation signal includes an odd integer (N) of transitions (310, 312) between a first amplitude and a second amplitude of the composite mitigation signal. Successive sets of the transition bursts are separated by a desired phase delay or time delay (330), or such separations are defined by a base signal (416) having a frequency equal to a fundamental frequency of the composite mitigation signal. The composite signal generators (222, 900, 1000) that generate the composite mitigation signal are also presented.

Abstract: A CMOS low-noise wide-band amplifier (LNA) 211 is provided. The LNA can include a Gm doubler 410, a source follower 420, and a coupling circuit (430/440) that couples a differential input to the Gm doubler with the source follower for achieving high linearity over a wide frequency range at a low supply voltage. The coupling circuit can capacitively couple (434/444) a differential input to a gate of the source follower. The gate can be biased to a supply voltage through variable resistors (436/446). A cross coupler (480) can be included in a push-pull buffer (450) for additional gain and for allowing the source follower to drive a low impedance load at low power.