Slot-line switching and limiting device for operation at microwa

Details Slot-line switching and limiting device for operation at microwa Slot-line switching and limiting device for operation at microwa

1985-01-31

1987-02-10

Gensler, Paul

Wave transmission lines and networks

Automatically controlled systems

Impedance matching

333223, 333238, 333247, 333262, H01P 115, H01P 122

Patent

active

046425845

ABSTRACT:
A slot-line for a microwave device in which is mounted at least one diode connected in parallel between two metallic strips of the slot. At high frequencies (18 to 200 GHz), the inductance L of the diode connections presents a not-negligible impedance which makes it difficult to use the diode. The device in accordance with the invention comprises a slot-line reentrant circuit which provides compensation for the diode inductance and is constituted by a metallic section which is coplanar with the line and connected in series with the diode. The compensating section is short-circuited or open-circuited with respect to the metallic strip in which it is reentrant. The electrical length of the compensating section is adjustable by means of wire, conductive varnish or metal pads.

REFERENCES:
patent: 2923901 (1960-02-01), Robertson
patent: 3568105 (1971-03-01), Felsenheld
patent: 3914713 (1975-10-01), Konishi et al.
patent: 3995239 (1976-11-01), Head et al.
patent: 4425549 (1984-01-01), Schwartz et al.
patent: 4541120 (1985-09-01), Szabo
1982 IEEE MTT-S International Microwave Symposium Digest, "New Structures for Impedance Transformation in Fin-lines" H. El Hennawy, et al, Jun. 15-17, 1982, pp. 198-200.
1981 IEEE MTT-S International Microwave Symposium Digest, "Computer-Aided Design of Semiconductor Mounts in Fin-line Technology" H. El Hennawy, et al, pp. 307-309.

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