The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2018
Filed:
Jun. 21, 2016
Kabushiki Kaisha Toshiba, Minato-ku, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
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.