Global Patent Index - EP 2688144 A1

EP 2688144 A1 20140122 - Antenna tuning for multiband operation

Title (en)

Antenna tuning for multiband operation

Title (de)

Antennenfrequenzabstimmung für Mehrbandbetrieb

Title (fr)

Réglage d'antenne pour fonctionnement multibande

Publication

EP 2688144 A1 20140122 (EN)

Application

EP 12176789 A 20120717

Priority

EP 12176789 A 20120717

Abstract (en)

A system and process that incorporates teachings of the subject disclosure may include, for example, a multiband antenna (1500) as may be used in mobile communications devices. The multiband antenna includes a common feed port (1502a) coupled to each of a first radiating portion (1510) and a second radiating portion (1520). Each of the first and second radiating portions defines a respective resonant bandwidth. The multiband antenna also includes at least one adjustable tuning circuit (1514) disposed between physically isolated radiating segments (1512a,1512b) of a respective one of the first and second radiating portions. Adjustment of the tuning circuit alters a corresponding resonant bandwidth allowing the corresponding resonant bandwidth to be tuned independently of the other resonant bandwidth and without affecting performance of the other resonant bandwidth. In at least some embodiments, the tuning circuit can include a tunable phase shifter having one or more components, each having a variable reactance. Other embodiments are disclosed.

IPC 8 full level

H01Q 1/38 (2006.01); H01Q 1/24 (2006.01); H01Q 5/10 (2015.01); H01Q 5/321 (2015.01); H01Q 9/14 (2006.01); H01Q 9/42 (2006.01); H01Q 21/30 (2006.01)

CPC (source: EP)

H01Q 1/242 (2013.01); H01Q 1/38 (2013.01); H01Q 5/321 (2015.01); H01Q 9/145 (2013.01); H01Q 9/42 (2013.01); H01Q 21/30 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2688144 A1 20140122; EP 2688144 B1 20161012; CA 2821190 A1 20140117; CA 2821190 C 20170117; CN 103545600 A 20140129; CN 103545600 B 20160518; EP 3131157 A1 20170215; EP 3131157 B1 20210224

DOCDB simple family (application)

EP 12176789 A 20120717; CA 2821190 A 20130716; CN 201310300532 A 20130717; EP 16188956 A 20120717