Specially connected bandpass filter

There is also a band-pass filter circuit as shown in Figure 6-21.
    This connection method is quite special. It is a deformed combination of the 12dB/oct bandpass filter. In the figure, CMH and LMH represent the inductance and capacitance components
of the high-pass filter , and LML and CML represent the inductance and capacitance components of the low-pass filter . The bandpass filter with this connection has a good response curve and input impedance.