The NanoScanOP 400 provides the fast step and settle time and incorporates capacitive feedback
sensors, providing excellent positioning accuracy and resolution.
The NanoCube is the smallest and lightest system in the company's line, with capacitive feedback
delivering 100 pm travel range.
Four integrated piezo power amplifiers with an output range of -30 to +130 V as well as circuitry for capacitive feedback
sensors, piezoresistive sensors, and traditional strain gages also are onboard.
Next consider high stopband rejection and passband selectivity for bandpass filter designs with the use of extra transmission zeros that are created by a capacitive feedback
Figure 1 shows the FET (MESFET or high electron mobility transistor) device in common-source configuration with a capacitive feedback
element, which is used in the MMIC filter.
The varactor connected to the FET source provides series capacitive feedback
such that the reflection coefficient looking into the gate exceeds one over a broad bandwidth.