Wave transmission lines and networks – Plural channel systems
Reexamination Certificate
2008-01-31
2011-10-18
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Plural channel systems
C333S238000
Reexamination Certificate
active
08040198
ABSTRACT:
A microstrip line for a printed wiring board such as a flexible printed wiring board which includes a sandwiched thin insulating layer and cannot use a solid grounding conductor, the microstrip line being such that shape of grounding conductors relative to signal lines remains unchanged even in the presence of a curved shape and that overlapping areas of signal lines and grounding conductors located opposite to each other remain unchanged even in case of exposure misalignment or stack misalignment. A printed wiring board with a microstrip line structure in which signal lines are curved include wire-type grounding conductors located across an insulating layer from the signal lines, characterized in that wiring pitch of the grounding conductors is 1
of width of the signal lines (where n is a natural number of 1 or 2).
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International Search Report dated Feb. 26, 2008.
European Search Report dated Nov. 5, 2009.
Jacobson & Holman PLLC
Lee Benny
Nippon Mektron Ltd.
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