Title :
Discoidal vs Tubular Feed-through Capacitors
Author_Institution :
The Allen-Bradley Co., Milwaukee 4, Wis.
Abstract :
The coupling impedance and its frequency dependency of tubular and disc-type ceramic feed-through capacitors are investigated theoretically and experimentally. The superiority of discoidal feed-throughs with respect to high-frequency performance and mechanical ruggedness is shown. In the UHF range filtering gains of 20 db to 30 db can be achieved when replacing tubular feed-throughs by discoidal units. Because of this merit, improved shielding methods, which are discussed, are required.
Keywords :
Capacitors; Ceramics; Filtering; Filters; Frequency; Impedance; Inductance; Resonance; Transmission line matrix methods; Tuners;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1955.278075