Document Type and Number:
Japanese Patent JPWO2022071256
Kind Code:
A1
Abstract:
A wiring base includes a base, a signal conductor, and a ground conductor including a first ground conductor. The base includes a first surface, a first region, and a second region. The first region is located near an outer side of the first surface. An external board is mounted in the first region. The second region is other than the first region. The signal conductor extends through a region including the first region of the first surface in a first direction away from the outer side. The first ground conductor is located in the base at a distance from the signal conductor of less than 1/4 of a wavelength of a high-frequency signal. The high-frequency signal is transmitted through the signal conductor. The first ground conductor includes a first grid portion at a first location overlapping the first region and at least a portion of the signal conductor in a see-through plan view viewed in a direction toward the first surface. The first grid portion includes a segment disposed between first openings. Lengths of the first openings in the first direction and a second direction crossing the first direction are 1/8 or more and 1/4 or less of the wavelength. A through conductor is located on the first grid portion.
Application Number:
JP2022553973A
Publication Date:
April 07, 2022
Filing Date:
September 28, 2021
Export Citation:
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