Microwave line structure

Details Microwave line structure Microwave line structure

1995-04-17

1997-01-14

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

333128, 333238, H01P 510

Patent

active

055943934

ABSTRACT:
A microwave line structure which has a first conducting track applied onto a substrate and a second conducting track which extends, supported on posts, at a distance above the first conducting track, a coplanar line being arranged, in addition to the microstrip line formed by the first conducting track and the second conducting track, on the substrate and coupled to this microstrip line, and the microstrip line extending between the two conducting tracks of the coplanar line, wherein, at one end of the coplanar line, the two conducting tracks of the latter are electrically conductingly connected to one another and to the first conducting track, wherein at the other end of the coplanar line the latter is open, wherein the length of the coplanar line is approximately equal to one quarter of the wavelength of the average operating frequency and wherein an asymmetrical line can be coupled to the first conducting track and the second conducting track at the short-circuited end of the coplanar line and a symmetrical two-wire line can be coupled to the open end of the coplanar line. Multi-application balancing circuit in monolithic integrated coplanar microwave technology for above 60 GHz. Use in mixers, modulators, amplifiers, etc. of radio link systems.

REFERENCES:
patent: 5025232 (1991-06-01), Pavio
patent: 5369795 (1994-11-01), Yanagimoto
Streifenleitungen, Geschwinde, et al, C. F. Winterische Verlagshandlung, 1960, pp. 1-5 No Month.
Lehrbuch der Hochfrequenztechnik, vol. 1, 1973, p. 104 No Month.

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