Fig. 5: Measured filter passbands.

Frequency responses for the a 2-pole and b 4-pole filters highlighted in Fig. 1 near the passband at 3864 Oe. b also shows a comparison of the fitted lumped element model in Fig. 2 with measured S21. The fitted circuit assumes all four resonators are identical and excludes the spurious passbands caused by higher order MSFVW modes.