Multi-layer substrate for low noise block down converter

Details Multi-layer substrate for low noise block down converter Multi-layer substrate for low noise block down converter

2006-08-29

2006-08-29

Vo, Tuyet (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S840000, C342S175000

Reexamination Certificate

active

07098851

ABSTRACT:
A multi-layer substrate of the invention for a low noise block down converter includes an antenna pattern conveying electric wave signals that have been carried along a waveguide, and three ground conductive layers stacked on the antenna pattern with dielectric layers therebetween. In at least one ground conductive layer of the three ground conductive layers, conductor is absent in at least part of the region that is closer to the waveguide than the antenna pattern. This provides a multi-layer substrate for a low noise block down converter where deterioration in the passage property of electric wave signals can be restrained.

REFERENCES:
patent: 6114986 (2000-09-01), Cassen et al.
patent: 6249242 (2001-06-01), Sekine et al.
patent: 6853334 (2005-02-01), Imai
patent: 2000-332526 (2000-11-01), None

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