Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yasuaki Wada0
Shinji Tamai0
Taihei Nakada0
Date of Patent
November 20, 2018
0Patent Application Number
151883540
Date Filed
June 21, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
According to one embodiment, an antenna apparatus includes a plurality of amplifier circuits, a common drain control circuit, a gate control circuits, and an antenna controller. The common drain control circuit constitutes a control circuit common to the plurality of amplifier circuits, and controls a drain voltage of a field-effect transistor included in each of the amplifier circuits. The gate control circuits are provided for each amplifier circuit, and controls a gate voltage of the field-effect transistor. The antenna controller controls the common drain control circuit and the gate control circuits, and selectively operates the plurality of amplifier circuits by controlling an output of the gate voltage prior to the drain voltage.
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