Surface mountable microwave IC package

Wave transmission lines and networks – Coupling networks – With impedance matching

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Details

333246, 333260, H01P 500

Patent

active

046268057

ABSTRACT:
A surface mountable microwave IC package uses printed transmission lines on a printed circuit board in lieu of plumbing between milled packages. A backside co-planar waveguide is connected to a topside microstrip line by a through-hole in a carrier substrate. To compensate for inductance added by the hole and transmission line ends, a gap is adjusted to provide compensation capacitance. Hermetic sealing of the package is assured by brazing a lead frame over the through-hole and using a solder sealed lid. The lid provides both a hermetic seal and shielding.

REFERENCES:
patent: 3842360 (1974-10-01), Dickens
patent: 3848198 (1974-11-01), DeBrecht et al.
patent: 4110712 (1978-08-01), Morris
patent: 4543544 (1985-09-01), Ziegner

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