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. 15, 2013
Filed:
May. 25, 2007
Mikael Ahlberg, Taby, SE;
Mikael Ahlberg, Taby, SE;
Powerwave Technologies Sweden AB, Taby, SE;
Abstract
An improved control system for controlling the electrical tilt, i.e. the electrically controlled inclination of a radiated beam, of a base station antenna () with a vertical row of antenna elements is disclosed. The antenna includes a phase shifting device () including a tilt adjusting mechanism with a displaceable mechanical element for adjusting an electrical tilt setting of the antenna lobe being radiated from the antenna. The control system is divided into two parts, namely a first part, including the entire tilt adjusting mechanism (), an electrical motor () and a position sensor (), these elements constituting internal components being arranged inside the antenna casing (), and a second part, including the remaining components of the control system, including an electrical motor control circuit (), and a logic circuit () determining the electrical tilt setting. The external components are disposed in a separate, external control unit () located outside but in the vicinity of the antenna casing (), and are adapted for operative coupling, by way of a direct electric wire connection or a capacitive coupling, to the internal components () located inside the antenna casing.