Microwave integrated circuit

Wave transmission lines and networks – Plural channel systems – Having branched circuits

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333204, 333246, H01P 518

Patent

active

049671715

ABSTRACT:
In a microwave integrated circuit, circuit elements such as microstrip coupled lines or interconnecting lines are formed on a separate substrate which is installed vertically between two halves of an input/output transmission-line substrate, or which is installed vertically on the surface of the input/output transmission-line substrate. Microwave integrated circuits with this configuration can be mass-produced at a low cost, can tolerate high applied power levels, and are smaller than conventional microwave integrated circuits.

REFERENCES:
patent: 3506932 (1970-04-01), Beurrier
patent: 4150345 (1979-04-01), Goldman et al.
patent: 4607240 (1986-08-01), Isota et al.
patent: 4823097 (1989-04-01), Konishi et al.
Konishi et al., A Directional Coupler of a Vertically Installed Planar Circuit Structure, IEEE Trans. on MTT, vol. 36, No. 6, Jun. 1988, pp. 1057-1063.
Matthaei et al., "Microwave Filters, Impedance-Matching Networks, and Coupling Structures"; McGraw Hill, N.Y., pp. 182-183, 188-191, 778-781, and 788-789.
"Newly Proposed Vertical Installed Planar Circuit and Its Application", Konishi et al., IEEE Trans. on Broadcasting, Mar. 1987.

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