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IEEE MTT-S International Microwave Symposium Digest, 2005.
An investigation into intermodulation (IM) distortion in bulk ferroelectric bandpass filters is presented. The main objective has been to study the effect of the response time of ferroelectric material on IM distortion. In order to investigate the response time IM measurements with wide carrier frequency spacing must be performed. Thus a novel planar dual-mode bandpass filter, with 600MHz bandwidth at 2GHz, has been designed and fabricated on a bulk Barium Strontium Titanate (BST) substrate.doi:10.1109/mwsym.2005.1516675 fatcat:jvuw2xyjhjbczlyzabugmrycpy