Differential Inductance RF Power Amplifier Package for Wideband Matching

The patent removes capacitors from the output matching circuits entirely, extracting the problematic component that limited bandwidth. The DC blocking function is achieved through alternative means (series inductors) while eliminating the bandwidth constraint imposed by capacitor values.

The patent changes the fundamental approach from using capacitors with specific capacitance values (around 200pF) to using inductors with specific inductance values. This parameter change from capacitive to inductive elements enables much higher instantaneous bandwidth (over 100MHz) while maintaining DC blocking functionality.

The patent extracts and removes the lossy capacitors from the output matching circuits, eliminating the source of energy loss. By replacing capacitors with inductors, the design achieves DC blocking without the resistive losses inherent in capacitor construction.

The patent replaces expensive, lossy high-quality capacitors with simpler inductor elements that have lower loss characteristics. This substitution uses more suitable components (inductors) for the specific function needed, achieving better efficiency.

The patent inverts the traditional single-ended approach by implementing a differential configuration. This inversion uses two push-pull amplifier blocks with differential signaling, which inherently rejects ground inductance effects and provides consistent RF performance across units.

The patent introduces asymmetry through differential signaling and push-pull configuration, where two amplifier blocks operate in complementary fashion. This asymmetric differential approach cancels out ground connection inductance effects that plague single-ended designs.