RF Blockset 2.5

Multiple Realizations of Cascaded Filters

This model illustrates three different ways to create filters using RF physical blocks and RF Toolbox™ objects.

Contents

Demo Model

Fig. 1 Demo model of multiple realizations of cascaded filters:

Simulation Results

The first method creates a filter using transmission line blocks from the Transmission Lines library and a LC Bandpass Filter block from the Ladder Filters library. Fig. 2 shows its frequency response ranging from 70 MHz (-5.0 MHz) to 80 MHz (5.0 MHz).

Fig. 2 Frequency response of the first filter:

The second method creates a filter using three General Circuit Element blocks and three RF circuit objects. Fig. 3 shows its frequency response ranging from 70 MHz (-5.0 MHz) to 80 MHz (5.0 MHz).

Fig. 3 Frequency response of the second filter:

The third method creates a filter using a General Circuit Element block and an RF circuit object, which represents a cascade of three RF circuit objects. Fig. 4 shows its frequency response ranging from 70 MHz (-5.0 MHz) to 80 MHz (5.0 MHz).

Fig. 4 Frequency response of the third filter: