Measurement of a 24-GHz broad-band multilayer ceramic feedthru for microwave packaging

A feedthrough using a microstrip to stripline to conductor backed coplanar waveguide (CBCWG) design was investigated for microwave performance. The feedthrough was manufactured using a high-temperature cofired multilayer ceramic process. The study was instigated from the need to have a field-replaceable, Ku-band transmit/receive module as part of an existing DARPA MIMIC program. The result is a feedthrough capable of transmitting microwave frequencies to 24 GHz with acceptable loss characteristics. The feedthrough performance exceeds published results.<
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