A phase matching band-pass filter using exponential function approximation

摘要

The present invention relates to a phase matching band pass filter using an exponential approximation, the parasitic resistance ( ), which includes the inductor () the first amplifier and the first element and the parasitic resistance (Give the connection ), the capacitor ( including ) and the second feedback amplifier is connected comprising a first coupling capacitor is connected to the plurality of filter elements and a plurality of filter elements including a second element, the impedance of the first element is a frequency ( ) and increase index and a function of the impedance of the second element is the frequency ( ) and the loss index, and a function of, the first element and the second element is connected in parallel and the features. ; can implement the present invention in the exponential approximation high-performance of the phase matching band-pass filter used as a traditional inductor and the capacitor according to the phase matching band-pass filter without using a negative resist (negative-R) using a. In addition, the impedance because characteristics using the device close to the exponential function of the frequency may implement a filter that requires a stability and a high Q value, as in the conventional filter frequency selection than the degree is high, whereby the channel selection filter. ; band-pass filter, High-Q