Stripline transition for twin toroid phase shifter

Details Stripline transition for twin toroid phase shifter Stripline transition for twin toroid phase shifter

1997-03-06

1998-09-22

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Nonreciprocal gyromagnetic type

333 26, 333 34, 333158, H01P 132

Patent

active

058120327

ABSTRACT:
A microwave transition consisting of a stripline member coupled to a pair of slot lines deposited on the outer surfaces of a pair of contiguous dielectric rib members. The stripline and one slot line on one of the rib members cross each other at right angles on parallel planes forming an energy coupling junction. One end of both slot lines comprise slot line regions which are either smooth tapered or stepped out to the full width of the dielectric ribs so as to couple RF energy to the normal fields in a twin toroid phase shifter which in one embodiment the toroids extend past the cross-over junction while in the second embodiment two additional dielectric layers are contiguously applied to the outside surfaces of the dielectric rib members containing the slot lines for matching the electric fields in the slots to the toroids. The outer surfaces of the transition including the twin toroids are metallized and fitted into a metal sleeve which provides support for the composite structure.

REFERENCES:
patent: 2761845 (1956-09-01), Ajoika et al.
patent: 3732508 (1973-05-01), Ito et al.
patent: 3845490 (1974-10-01), Manwarren et al.
patent: 4636757 (1987-01-01), Harrison et al.
patent: 5075648 (1991-12-01), Roberts et al.
patent: 5093639 (1992-03-01), Franchi et al.
El-Sharawy, "Dual-Ferrite Slot Line . . . Phase Shifters", IEEE Trans. on Microwave theory & Tech., vol. 39, No. 12, pp. 2204-2210, Dec. 1991.

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