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:
Apr. 25, 2006
Filed:
Dec. 14, 2000
Yuki Satoh, Osaka, JP;
Tetsuya Tsurunari, Osaka, JP;
Koji Hashimoto, Hyogo, JP;
Hiroshi Takahashi, Osaka, JP;
Kozo Murakami, Osaka, JP;
Yuki Satoh, Osaka, JP;
Tetsuya Tsurunari, Osaka, JP;
Koji Hashimoto, Hyogo, JP;
Hiroshi Takahashi, Osaka, JP;
Kozo Murakami, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A hybrid radio frequency (RF) switching device includes first to fourth ports, a diode coupled between the first port and second port, a first transmission line having a length of λg/4 (where λg is a wave length of a frequency in a first frequency band), and a first element coupled in series with the first transmission line having an almost simple reactance component and nearly opening in a second frequency band. The first transmission line and first element are coupled in series between the second port and third port. The device further includes a second transmission line having a length of λd/4 (where λd is a wavelength of a frequency in the second frequency band), and a second element having an almost simple reactance component and nearly opening in the first frequency band. The second transmission line and second element are coupled in series between the second port and fourth port.