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:
May. 06, 2008
Filed:
Mar. 31, 2003
Kong S. Luen, Germantown, MD (US);
Kong S. Luen, Germantown, MD (US);
FreeScale Semiconductor, Inc., Austin, TX (US);
Abstract
A miniature vertically polarized multi-frequency antennais embedded in a substrateand suitable for use within a wireless device. The antennaincludes a first lateral memberand a second lateral member, which is spaced from and parallel to the first lateral member. The antennahas a wide tuning range due to multiple resonances provided by the lateral members. The antennais shortened by reactive loading and by embedding the antenna in material having a high dielectric constant. Tuning circuitsare coupled to respective ends of one of the lateral members. The tuning circuits are located on a common plane with the lateral member to which they are connected. The tuning circuitselectronically add reactance to the antenna to alter the frequency at which it resonates. A method of providing the antennaincludes forming flat metal stripson layers of a laminated substrateand forming the second lateral memberbetween adjacent layersof the substrate