inverse bandwidth
2.A Side-wall-coupled, strip-transmission-line, of bandpass filter configuration for double-coupled-resonator magnetically tunble microwave filters is discussed, while the frequency rate kept growing from 1 to 20, it was shown from theoretical analysis that the floating rate of exchange of Qe was less than 0.4 and coupling coeffcient K was in inverse proportion to & under high isolation and applicable . 3dB bandwidth.
