Exact Design of a Ka Band H-Plane Inductance Diaphragm Waveguide Band-Pass Filter

A exact design method of Ka band H-plane inductance diaphragm wave guide band-pass filter is discussed. It starts from the lumped low-pass prototype, through frequency conversion, summarizing the design formula of the lumped parameter coupled resonator band-pass filter, and then using the microwave structure to realize the coupling structure and the resonator, thus we can get the microwave band-pass filter. And in the design we consider the machining chamfer which leads to frequency offset, sum up the exact design method of diaphragm filter with chamfer which can realize the low loss and band without offset. It overcomes the error and loss which is relatively high compared with traditional method.