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:
Dec. 29, 2009
Filed:
Jan. 12, 2009
Ushio Sangawa, Nara, JP;
Ushio Sangawa, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The connection topology of input terminals, elementsandand loadis designed similarly to a so-called 'seven-segment display', which is often used to display numerals on an electronic calculator or a digital watch. More specifically, suppose in the three horizontally running segments, the top and bottom segments are associated with the input terminalsand the loadis allocated to one of the four vertically running segments. Then, the three other vertical segments and the other horizontal segment are associated with the elementsand, which are an inductor with an inductance of 5.119 nH, a capacitor with a capacitance of 1.370 pF, an inductor with an inductance of 8.360 nH and a capacitor with a capacitance of 5.942 pF, respectively. By adopting this circuit configuration, the total number of elements can be reduced to four and the lossc can be reduced significantly. In addition, since the resonant circuits can be eliminated and the size of the ladder circuit can be reduced, impedance matching is achieved with a high degree of stability.