How do I design the DC bias network for a MMIC amplifier to prevent low frequency oscillations?

Designing the DC bias network for a MMIC amplifier to prevent low frequency oscillations requires careful attention to the impedance presented by the bias network at frequencies well below the amplifier's operating band, because most MMIC amplifiers have gain at low frequencies (sometimes higher gain than at the intended operating frequency) and the bias network can create resonant circuits that provide positive feedback at those frequencies. Low-frequency oscillation occurs because: the MMIC amplifier has broadband gain (many MMICs have flat gain from near DC to several GHz, or gain that increases at lower frequencies due to the transistor's natural gain roll-off with frequency), the bias network's inductors and capacitors create resonances (the RFC inductors, bypass capacitors, and PCB traces form series and parallel resonant circuits at frequencies from 1 MHz to several hundred MHz), and these resonances can create a negative resistance at the amplifier's input or output at the resonant frequency, causing oscillation. Prevention techniques include: using resistive loading in the bias network (add a series resistor of 10-100 ohms between the RFC inductor and the bypass capacitor; this damps the resonance formed by the inductor and capacitor; the resistor value is chosen to reduce the Q of the resonance below the level needed for oscillation while limiting the DC voltage drop across the resistor), using multiple bypass capacitors in series-parallel combinations (a single large bypass capacitor (100 nF) has a self-resonant frequency (SRF) of 10-50 MHz; above SRF it becomes inductive and no longer bypasses; use a progression: 100 pF + 1 nF + 100 nF in parallel to maintain low impedance from 10 MHz to 10 GHz), adding ferrite beads (a ferrite bead in series with the DC supply line adds lossy impedance at frequencies from 10 MHz to 1 GHz, damping potential oscillations without affecting DC or the RF operating frequency), and checking stability at all frequencies (simulate the amplifier with the complete bias network from 100 kHz to 20 GHz; check K-factor and |delta| at every frequency point).