Multi-Mix® Application Notes

Simulated Versus Actual Performance

Attached are the results for the simulation and actual test results for the Band 2 filter. This filter is an interdigital design realized in our Multi-Mix® technology. The simulation was performed using Sonnet em. Sonnet is a electromagnetic simulator tool capable of analyzing high frequency circuits.

This filter was realized with a 0.080 ground plane and measures only 1.19 inches by 0.786 inches. The center frequency for this bandpass filter is 2.1 GHz.

Shown in Figure 1 is the simulated and measured passband insertion loss and return loss. The actual test data includes the loss of the test fixture. The data indicates that there is excellent agreement between the simulated and actual test results.

Figure 1. Passband insertion loss and return loss for the 2.1 GHz MultiMix® bandpass filter.