| abstract |
This disclosure provides implementations of electromechanical systems combined resonator and passive circuit components. In one aspect, passband flattened filter apparatus includes a resonator structure and input and output passband flattening components. The resonator structure has a first input, a second input coupled to a ground terminal, a first output, and a second output coupled to the ground terminal. The input passband flattening component includes a first inductor having an output coupled to the first input of the resonator structure, and a second inductor having an input coupled to the first input of the resonator structure and an output coupled to the ground terminal. The output passband flattening component includes a first inductor having an input coupled to the first output of the resonator structure, and a second inductor having an input coupled to the first output of the resonator structure and an output coupled to the ground terminal. |