Lumped Multi-Element Z-Y Matching Networks > Rload, Shunt C, Series L, Shunt C Shunt R-C or R-L Device

Description

Given a shunt R-C equivalent input or output circuit of a device, this schematic computes component values of two networks to conjugately match the device to an output resistance. (The shunt R-C network can be converted to a shunt R-L network if the capacitance is set to a negative value, with formula given on the schematic.) Starting from a resistance, RL, the network generates the complex conjugate admittance via a shunt C - series L - shunt C ladder network. If Rdev/RL is > (Q**2 +1 ), where Rdev is the device's resistance and RL is the external load resistance, then this network cannot be used.

Main Schematic Settings

Device equivalent circuit (Shunt R-C or Shunt R-L) component values, load resistance, frequency of match, Q of admittance transformation network

Data Display Outputs

• L and C component values of the network
• Reflection coefficient versus frequency (dB and on a Smith chart) looking back into the network from the output resistor, RL, when the other end of the network is terminated in the device's equivalent circuit

Schematic Name

Ymatch1M

Data Display Name

Ymatch1M.dds