Abstract
AbstractThis paper presents a procedure for designing and synthesizing a 5th‐order waveguide bandpass filter based on rectangular resonators in X‐band frequency. The designed bandpass filter is implemented in waveguide technology with multiple rectangular cavity resonators. Computerized numerical control (CNC) micro‐machined metallic is used in the waveguide filter structure with an accuracy of 0.2 mm. silver plating has been performed inside the X‐band bandpass filter, which has improved the quality of the response. This low‐loss and high‐power X‐band wideband waveguide filter with center frequency at 9.45 GHz, the bandwidth of 0.9 GHz, the return loss of 18 dB, and the insertion loss of 0.08 dB has been realized.
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