tunable BPF Simulation problem

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kecbackbencher

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Hello frenz

I have designed a tunable BPF having tunable posts providing passband(0.8 dB insertion maximum) with constant bandwidth of 16MHz from 1.7 GHz to 2.6 GHz.

There is some problem arising that non manifold edges are found in part if I am keeping air cloned waveguide interior. if I am using clonless interior(hollow one), then no error is there but simulation problem

I am sending the structure with second condition
please check]
 

manual tuning?How U can assure that constant bandwidth is 16MHz
 

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