| 摘要 |
An electromagnetically lossy liquid-or gas-tight fusion seal (13a, 15a) for use as a low pass radio frequency signal filter (15) constructed as a matrix of glass binder and ferrimagnetic and/or ferroelectric filler. Metal cased electrical filters (10) are made by reflowing the material to form fused glass-to-metal seals (13a, 15a) and incorporating electrical thru-conductors (14) therein which may be formed as inductive windings.
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