Ultrasonic transducers are widely used for surround sensing applications in the automotive industry. A major challenge for today’s mobility solutions consists in the development of autonomous driving functions. Highly automated vehicle concepts require a comprehensive surround sensing performance, which leads to an increasing number of sensors. The applied ultrasonic sensors are desired to operate in parallel or in shorter intervals. Hence, transducers with two or more well discriminated operating frequencies are of great interest. Known multifrequency ultrasonic transducers use multiple electromechanical coupling elements resulting in more complex sensor electronics. To overcome this issue, the authors investigate a method for controlling the operational deflection shapes. In finite element simulation, different resonator configurations, represented by a generic plate like structure, are studied. Spatially distributed stop band material is used to achieve two well-separated operating frequencies with similar and appropriate sound radiation. Furthermore, it is investigated whether the shape modification is caused by the resonant behavior or the added resonator mass. Based on the results, locally distributed resonators are identified as a suitable solution to modify the operational deflection shapes and the according sound radiation of the generic model. Thus, a multifrequency ultrasonic sensor with a single coupling element can be realized.