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:
Jan. 12, 2010
Filed:
Feb. 14, 2006
Hans Adel, Stein, DE;
Rainer Wansch, Hagenau, DE;
Josef Bernhard, Erlangen, DE;
Thomas Fischer, Erlangen, DE;
Hans Adel, Stein, DE;
Rainer Wansch, Hagenau, DE;
Josef Bernhard, Erlangen, DE;
Thomas Fischer, Erlangen, DE;
Siemens Audiologische Technik GmbH, Erlangen, DE;
Abstract
An antenna comprises a first antenna element, which has a first helix, and a second antenna element, which has a second helix. The first and the second antenna elements each have a feed point at an outer end of the corresponding helix and an open end at an inner end of the corresponding helix. A symmetrical helix antenna according to the invention can be integrated in a comparatively simple manner in an existing system, for example in a hearing aid. By integrating the antenna in a plastic housing, the antenna cannot be seen at all from the outside. The antenna is comparatively small in relation to conventional antennas.