ANTENNAS WITH MULTIPLE FEED CIRCUITS

Title:

ANTENNAS WITH MULTIPLE FEED CIRCUITS

Document Type and Number:

WIPO Patent Application WO/2011/021027

Kind Code:

A3

Abstract:

There is disclosed an antenna arrangement comprising an electrically conductive radiating element (20) having first and second ends, an electrically conductive ground plane or ground member (11), and an input terminal (27). The radiating element has a plurality of separate feed points (22, 23) at different locations between its first and second ends, and the input terminal is provided with a switch (26). Each feed point (22, 23) is electrically connected to the switch (26) by way of a separate electrical pathway, the switch (26) being configured to allow the separate feed points (22, 23) to be connected individually or in predetermined combinations to the input terminal (27) by selecting between a plurality of selectable contacts. At least one of the electrical pathways includes a capacitive circuit component (29) connected in series, and at least one other of the electrical pathways includes an inductive circuit component (28) connected in series. The antenna arrangement allows for a high degree of customization and improved matching, and enables good multi-band performance.

Inventors:

COLLINS BRIAN (GB)
HARPER MARC (GB)

Application Number:

PCT/GB2010/051335

Publication Date:

May 26, 2011

Filing Date:

August 12, 2010

Export Citation:

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Assignee:

ANTENOVA LTD (GB)
COLLINS BRIAN (GB)
HARPER MARC (GB)

International Classes:

H01Q1/24; H01Q5/00; H01Q7/00

Domestic Patent References:

WO2009027579A1	2009-03-05
WO2005112280A1	2005-11-24
WO2007147940A1	2007-12-27

Foreign References:

EP1870957A1	2007-12-26
JP2006086630A	2006-03-30
US20080055164A1	2008-03-06