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US 2006/0186513 A1Published application
High frequency unit
AssigneeSharp Kabushiki Kaisha
InventorMasanori Kitaguchi
Life of this patent
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Abstract
A high frequency unit (e.g., an RF signal selection switch) includes, as its external terminals, a terrestrial input terminal, a CATV input terminal, an RF output terminal, a selection signal terminal, a power supply terminal and a ground potential terminal. The external terminals are attached to a shielding case surrounding the peripheral edge of a wiring substrate. The shielding plate is disposed in contact with the rear face of the wiring substrate.
Claims18
A high frequency unit comprising:
- a wiring substrate that includes a high frequency semiconductor electronic component mounted on its front face;
- a shielding case that surrounds the wiring substrate to shield the wiring substrate;
- and
- a shielding plate that contacts a rear face of the wiring substrate to shield the wiring substrate.
1 more element
Dependencies are inferred from the claim text.