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:
May. 07, 2013
Filed:
Jan. 06, 2010
Takayoshi Ito, Kanagawa-ken, JP;
Yukako Tsutsumi, Kanagawa-ken, JP;
Shuichi Obayashi, Kanagawa-ken, JP;
Hiroki Shoki, Tokyo, JP;
Takayoshi Ito, Kanagawa-ken, JP;
Yukako Tsutsumi, Kanagawa-ken, JP;
Shuichi Obayashi, Kanagawa-ken, JP;
Hiroki Shoki, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A measurement apparatus includes an anechoic chamber, a DUT board, rotation units, and a feeding arm. The anechoic chamber has inner-walls. Each inner-wall is covered with a radio wave absorber. One of the inner-wall is a first wall with an aperture and the other inner-walls are second walls. The DUT board holds a first antenna to be measured with radiation property and a probe to detect a signal from the first antenna. A part of the DUT board is inserted into the anechoic chamber through the aperture opened in the first wall. One end of the feeding arm holds a second antenna radiating a radio wave to the first antenna in the anechoic chamber. Each rotation unit provides on each second wall and is selectively attached to the other end of the feeding arm for rotating the second antenna and for feeding to the second antenna.