Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2005-02-08
2005-02-08
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S840000, C333S026000, C333S033000
Reexamination Certificate
active
06853334
ABSTRACT:
There can be provided an LNB converter including a multilayer substrate formed of more than two layers, capable of providing adequate transit characteristic for any frequency, and a multilayer substrate. A microstrip line is provided at one surface layer's pattern and a second layer's pattern cooperating with the surface layer's pattern to sandwich a dielectric layer underlying the surface layer's pattern. A probe is inserted from the surface layer's pattern in a direction intersecting a 4-layer substrate and in at least one pattern layer other than the first and second, pattern layers at least a region surrounding a hole having a probe passing therethrough is either a pattern-free region provided by removing a predetermined region surrounding the hole or an isolated region corresponding to a predetermined region surrounding the hole and electrically isolated from an outer region of the pattern layer.
REFERENCES:
patent: 5517203 (1996-05-01), Fiedziuszko
patent: 6111547 (2000-08-01), Gau et al.
patent: 6677911 (2004-01-01), Moheb
patent: 20030197573 (2003-10-01), Kato
patent: 5-183328 (1993-07-01), None
Birch & Stewart Kolasch & Birch, LLP
Ho Tan
Sharp Kabushiki Kaisha
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