Compact C band High Rejection Cavity Bandpass Filter

The paper utilizes coupling matrix approach for design and simulation of 8
^th
order cavity bandpass filter in CST Microwave Studio. The bandwidth and center frequency of the filter was tuned for desired frequency band using coupling and tuning screws. For design verification, the filter has been realized using aluminum alloy material. The filter has been realized in a compact form factor. Rejection of order of -98dB at 300 MHz away from center frequency with insertion loss of less than 0.6 dB at center frequency has been achieved.