Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1998-02-27
1999-12-14
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333229, 333234, H01P 706, H01P 130
Patent
active
060023104
ABSTRACT:
An electromagnetic resonator comprises a waveguide body having a generally tubular side wall and a pair of end wall assemblies. The end wall assembly includes a bowed aluminum plate and an INVAR disk, attached to one another at the periphery thereof. The INVAR disk includes a relatively thick outer annular portion and a relatively thin inner circular portion. The bowed aluminum plate bows in response to increased temperature, thereby counteracting expansion of the waveguide body.
REFERENCES:
patent: 3063030 (1962-11-01), Manahan et al.
patent: 4488132 (1984-12-01), Collins et al.
patent: 4677403 (1987-06-01), Kich
patent: 5309129 (1994-05-01), Arnold et al.
patent: 5867077 (1999-02-01), Lundquist
Goetschel Daniel B.
Gray Devon J.
Kich Rolf
Grunebach Georgann S.
Gudmestad Terje
Ham Seungsook
Hughes Electronics Corporation
Sales Michael W.
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