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:
Sep. 05, 2006
Filed:
Oct. 30, 2003
Norio Takeuchi, Tokyo, JP;
Izuru Naitou, Tokyo, JP;
Eiichi Sakai, Tokyo, JP;
Yutaka Shimawaki, Tokyo, JP;
Norio Takeuchi, Tokyo, JP;
Izuru Naitou, Tokyo, JP;
Eiichi Sakai, Tokyo, JP;
Yutaka Shimawaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a moving body satellite communication apparatus for performing communication with a satellite by an antenna with a radome mounted on a moving body such as an aircraft, loss due to transmission through the radome, and distortion of polarization characteristics are compensated in the inside of the antenna. Variable phase shiftersandand variable attenuatorsand, and variable phase shiftersandand variable attenuatorsandare respectively controlled as one body in each channel, and the whole power EIRP radiated from the antenna is also optimally controlled by a common variable attenuatorinserted independently from the variable attenuatorsand, and therefore, radome correction and EIRP control can be simultaneously realized by a relatively simple circuit.