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| R2012a Documentation → SimRF | |
Learn more about SimRF |
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Elements
The Impedance block models an abstract circuit element with constant impedance within the SimRF circuit-envelope simulation environment. For more information about simulating RF systems, see the example, Reduce Computations by Using RF Simulation Techniques.
The block implements the relation
where:
Z represents a constant, complex-valued impedance.
v(t) represents the voltage across the terminals of the element at time t.
i(t) represents the current through the element at time t.
SimRF current and voltage signals consist of in-phase (Ik) and quadrature (Qk) components at each frequency fk specified in the SimRF Parameters block:
Specify the impedance, Z, as either 0 or a complex number with real and imaginary parts that are greater than or equal to 1e-18 Ohm. If you set this parameter to a value with real or imaginary part between 0 and 1e-18 Ohm, the block uses a value with real or imaginary part equal to 1e-18 Ohm during simulation. The default value of this parameter is 50 Ohm.
In the Demos section:
The demo Frequency Response of an RF Transmit/Receive Duplex Filter demo simulates an analog RF filter comprised of Capacitor, Inductor, Resistor, and Impedance blocks.
Capacitor | Inductor | Resistor
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