This lesson covers types of matching networks. It delves into the L match, its components, and its limitations due to the lack of freedom in choosing the Q, given the transformation ratio and the center frequency. The lesson then introduces the pi match and the T match networks as potential solutions, explaining their design and operation. It also discusses the impact of parasitic capacitances and presents the tapped inductor and tapped capacitor matches.
00:24 - Introduction and recap of previous lesson
07:25 - Explanation of how to choose L 2 and C 2 to resonate at the chosen frequency
16:06 - Overall bandwidth of the matching circuit and how to compute it
34:44 - Quality factor of the circuit
45:34 - Parasitic capacitance, tapped capacitor match and the tapped inductor match
- The L match network uses two components, an inductor and a capacitor, and its Q is determined by the transformation ratio of the source to load resistance.
- The pi match and t match networks offer more flexibility in design as they use three components, potentially solving the limitations of the L match.
- Parasitic capacitances can impact the design of matching networks, and certain network designs, like the tapped capacitor match, can absorb these parasitics.
- The total Q of a network can be increased using the pi match and T match networks, providing a sharper match.
- The transformation ratio in these networks is determined by the Q values of the individual components.