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:
Mar. 25, 2014
Filed:
Jul. 10, 2012
Masahiko Nagoshi, Osaka, JP;
Wataru Noguchi, Hyogo, JP;
Hiroyuki Yurugi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In an inverted F pattern antenna apparatus having a first antenna element and an electrical length of a quarter wavelength of a first resonance frequency, the inverted F pattern antenna apparatus having two resonance frequencies is configured to include a third antenna element and a second antenna element at an end portion of the first antenna element, and setting a length having an electrical length obtained by adding the electrical length of a further provided antenna element to the electrical length of the inverted F pattern antenna apparatus to the electrical length of a quarter wavelength of a second resonance frequency to achieve resonance at the second resonance frequency. In addition, a loop antenna is configured to include the first, third and second antenna elements and the grounding antenna element by capacitively coupling another end of the third antenna element to the grounding antenna element.