Method to make microwave coupler with maximal directivity and ad

Details Method to make microwave coupler with maximal directivity and ad Method to make microwave coupler with maximal directivity and ad

1992-06-05

1993-09-07

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333238, H01P 518

Patent

active

052433056

ABSTRACT:
A method for increasing the directivity and adaptation of directive microwave couplers formed of two spaced apart lines, in which the length of each line is reduced to a value of less than one quarter of the operating wavelength. Capacitance is added to the coupler to counter the reduction of capacitance resulting from the shortened lines. The capacitance is added by: (1) increasing the surface area of the shortened lines by adding lateral pads; and (2) providing a dielectric bridge across the pads.

REFERENCES:
patent: 3512110 (1970-05-01), Clar
patent: 3593208 (1971-07-01), Smith
patent: 3849743 (1974-11-01), Treczka
patent: 4375054 (1983-02-01), Pavio
patent: 4376921 (1983-03-01), Dickens et al.
patent: 4394630 (1983-07-01), Wayne et al.
patent: 4999593 (1991-03-01), Anderson
Patent Abstracts of Japan, vol. 9, No. 43 (E-298) [1766], 22 Feb. 1985 (abstract of JP-A-59 182 601 (Fujitsu K.K.) 17 Oct. 1984).

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