APPLICATION NOTE
3
Figure 2: REFLECTS circuit
Sub Schematics
Create above circuits in Capture and create a hierarchical part for each. For the purpose of this article, these
custom parts are named XMITS(Figure. 3) and REFLECTS(Figure. 4), respectively.
Sub Schematic for Transmission coefficients
measurement, XMITS
Figure 3: XMITS circuit and its hierarchical part
The XMITS circuit shown in Figure 3 is used to measure the
->Forward transmission coefficient, S21
->Reverse transmission coefficients, S12
Since the output load matches the input load, the transmission coefficients are the output voltage multiplied by 2.
The E device, E1, has a gain of 2. The port labeled CKT is used to connect to the external circuit. The port, STR,
