Circuit Envelope Elements Capacitor (CE) Ground Ideal Transformer (CE) Inductor (CE) Resistor (CE) Amplifier CE Mixer CE LC Ladder (CE) Filter CE Variable Inductor (CE) Variable Capacitor (CE) Attenuator (CE) Three-Winding Transformer (CE) Signal Combiner (CE) Variable Attenuator (CE) Variable Resistor (CE) Phase Shift (CE) Transmission Line (CE) Z (CE) Junctions Coupler (CE) Circulator (CE) Divider (CE) SPDT (CE) SPST (CE) Switch (CE) Wilkinson Power Divider (CE) Sources Sinusoid (CE) Utilities Inport Outport Configuration