Global Patent Index - EP 2477275 A1

EP 2477275 A1 20120718 - Patch antenna

Title (en)

Patch antenna

Title (de)

Patchantenne

Title (fr)

Antenne Patch

Publication

EP 2477275 A1 20120718 (EN)

Application

EP 11360006 A 20110112

Priority

EP 11360006 A 20110112

Abstract (en)

A compact patch antenna for use in an antenna array in a wireless telecommunications network. The patch antenna is operable to receive a feed signal and transform that feed signal to a radiated output signal. The compact patch antenna comprises: a ground plate and a radiating element operable to radiate the output signal. The radiating element is located substantially parallel to, and spaced from, the ground plate. The antenna further comprises a capacitive loading element extending from the ground plate. The loading element is arranged to define a cavity between the radiating element and the ground plate, and is spaced from the radiating element to define a predetermined capacitive gap between the radiating element and the capacitive loading element. The predetermined capacitive gap is selected to alter capacitance of the cavity. The antenna also comprises a differential signal feed mechanism operable to couple the feed signal to the radiating element, and alter inductance of the cavity in a predetermined manner selected to substantially compensate for a reduction in output signal bandwidth caused by the alteration to the cavity capacitance caused by the predetermined capacitive gap.

IPC 8 full level

H01Q 21/06 (2006.01); H01Q 1/24 (2006.01); H01Q 9/04 (2006.01)

CPC (source: EP)

H01Q 1/246 (2013.01); H01Q 9/0407 (2013.01); H01Q 9/0435 (2013.01); H01Q 9/0442 (2013.01); H01Q 21/06 (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 2477275 A1 20120718

DOCDB simple family (application)

EP 11360006 A 20110112