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:
Jul. 24, 2018
Filed:
Jul. 29, 2016
Advanced Automotive Antennas, S.l.u., Barcelona, ES;
Enrique Martinez Ortigosa, Barcelona, ES;
Ramiro Quintero Illera, Barcelona, ES;
ADVANCED AUTOMOTIVE ANTENNAS, S.L.U., Barcelona, ES;
Abstract
A circuit () for establishing a desired impedance value for a radio antenna () comprising a transistor () having an input () and an output terminal (), and a printed radio frequency transformer comprising a first () and a second inductor (), both inductors () having a coupling factor value, and having a first and a second terminal (). The first terminal () of the first inductor () is adapted for connecting a radio antenna (). The input terminal () of the transistor () is connected to the second terminal () of the first inductor (), and the output terminal () of the transistor () is connected to the first terminal () of the second inductor (), so that the desired impedance value (Z) at the second terminal () of the second inductor () is determined by the inductance value of the second inductor ().