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. 12, 1998
Filed:
Sep. 11, 1995
Donald Horace Wells, Holland, OH (US);
Other;
Abstract
A new and improved antenna-transmission line coupling system is provided wherein the electro-magnetic oscillations in the antenna are prevented from entering the circuitry which couples the antenna to its transmission line. The coupling structure (called coupler) includes an impedance matching transformer and a capacitor connected to the transformer and capacitively coupled with the antenna element. Various embodiments are provided for varying the capacitive coupling with the antenna element. Antenna elements having capacitor plates on their ends are disclosed; as well as an arrangement wherein a universal coupler having a broad band impedance matching transformer can be used with any number of antenna elements each tailored for a different commercial RF frequency band.