Interconnection between layers of striplines or microstrip throu

Details Interconnection between layers of striplines or microstrip throu Interconnection between layers of striplines or microstrip throu

1994-03-08

1995-11-28

Gensler, Paul

Wave transmission lines and networks

Long line elements and components

Strip type

333260, H01P 500

Patent

active

054711819

ABSTRACT:
An interconnection between layers of stripline or microstripline in a multilayer microwave circuit assembly, through electromagnetic coupling. The adjacent layers (52 and 54) utilize a common ground plane layer (56), and a U-shaped coupling slot (64) is formed in the common ground plane. To eliminate undesirable coupling to other transmission line modes, the coupling slot is enclosed by a cavity (70) for each layer. The cavity size is selected so that no cavity mode exists, and to prevent formation of unwanted transmission modes. The "U" shape of the slot reduces the size of the cavity. The interconnection can be used with adjacent layers of stripline, microstrip line, or stripline and microstrip line.

REFERENCES:
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patent: 5093639 (1992-03-01), Franchi et al.
patent: 5150088 (1992-09-01), Virga et al.
Handbook of Tri-Plate Microwave Components Sanders Assoc., Nashua, N.H., 1956, pp. 86 & 87 relied on, TK787053.
Transactions of the Institute of Electronics and Communication Engineers of Japan, Section E, vol. E69, No. 4, Apr. 1986 Tokyo JP, pp. 333-334, O. Ishida et al. `An asymmetrical suspended stripline directional coupler` *FIG. 3*.
Electronics Letters, vol. 22, No. 5,27 Feb. 1986 Stevenage GB, pp. 281-183, T. Kitazawa et al. `Dispersion Characteristics of unsymmetrical broadside-coupled striplines with anisotropic substrate` *FIG. 3*.
IEEE Transactions on Microwave Theory and Techniques, vol. 34, No. 12, Dec. 1986 New York US, pp. 1457-1463, suspended striplines` *FIGS. 2, 6*.
Electronics Letters, vol. 29, No. 11, 27 May 1993 Stevenage GB, pp. 1021-1022, XP 000373934, M. EL Yazidi et al. `Analysis of aperture-coupled circular microstrip antenna` *FIGS. 1, 2*.

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