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. 25, 2010
Filed:
May. 02, 2005
Tsutomu Nagatsuka, Tokyo, JP;
Yoshihito Hirano, Tokyo, JP;
Tomohiro Akiyama, Tokyo, JP;
Ryuji Ishii, Tokyo, JP;
Masahito Sato, Tokyo, JP;
Toshitaka Aoyagi, Tokyo, JP;
Eitaro Ishimura, Tokyo, JP;
Tsutomu Nagatsuka, Tokyo, JP;
Yoshihito Hirano, Tokyo, JP;
Tomohiro Akiyama, Tokyo, JP;
Ryuji Ishii, Tokyo, JP;
Masahito Sato, Tokyo, JP;
Toshitaka Aoyagi, Tokyo, JP;
Eitaro Ishimura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided is a photodiode array that is capable of outputting an electric signal with a large electric power and an optical microwave transmission system receiver that supplies an electric power with the aid of an optical fiber and does not require the electric power line from the external. An input modulation light is branched and input to a plurality of photodiode elements (), electric output terminals () of the plurality of photodiode elements () are connected in parallel to each other, and a combined electric output is extracted. The electric output terminal () of the photodiode array configured as described above is connected to an antenna () without an intermediation of an amplifier circuit.