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公开(公告)号:EP2229598B1
公开(公告)日:2020-11-11
申请号:EP07857264.1
申请日:2007-12-06
发明人: HARRYSSON, Fredrik , MEDBO, Jonas
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公开(公告)号:EP3555648B1
公开(公告)日:2020-09-16
申请号:EP17811433.6
申请日:2017-11-24
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公开(公告)号:EP2940794B1
公开(公告)日:2020-07-08
申请号:EP13876087.1
申请日:2013-10-31
发明人: GONG, Yiwen , WANG, Kemeng , SHEN, Yunpeng , WANG, Yuhui , ZHU, Dejin
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公开(公告)号:EP2922143B1
公开(公告)日:2020-02-12
申请号:EP15159932.1
申请日:2015-03-19
发明人: Takasaki, Atsushi , Yukimasa, Koji
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公开(公告)号:EP2230722B1
公开(公告)日:2019-11-27
申请号:EP10250463.6
申请日:2010-03-12
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公开(公告)号:EP1652269B1
公开(公告)日:2018-12-19
申请号:EP04775301.7
申请日:2004-08-09
申请人: Gapwaves AB
发明人: KILDAL, Per-Simon
CPC分类号: H01Q11/10 , H01Q9/16 , H01Q19/108 , H01Q21/24
摘要: The invention describes a broadband multi-dipole antenna that has low input reflection coefficient, low cross polarization, rotationally symmetric beam and constant beam width and phase center location over several octaves bandwidth. The dipoles are fed from one or a few feed points, and they may with advantage have log-periodic dimensions. The antenna is more compact, has lighter weight and is cheaper to manufacture than other solutions. It is very well suited for feeding single, dual or multi-reflector antennas.
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公开(公告)号:EP2798698B1
公开(公告)日:2018-11-21
申请号:EP12820938.4
申请日:2012-12-27
申请人: SMK Corporation
发明人: FLOREK, Miroslav , MAJER, Libor
CPC分类号: H01Q7/08 , H01Q1/2275 , H01Q9/16
摘要: An antenna on a removable card An antenna on a removable memory card (1) is intended for the creation of contactless communication channel of the mobile communication device. The antenna is in the form of a high-frequency transformer (2) with an oblong ferrite kernel (3) with resonantly tuned primary winding L1. The emitted signal is brought to the primary winding L1. The secondary winding L2 is left open circuited, without closing the load circuit in a contact way, without ohm load; it emits electrical field with its outputs. The high-frequency transformer (2) can be in the form of auto-transformer with one winding. The signal emitted in the direction towards the removable memory card (1) can be received through the auxiliary winding L3 or through an independent receiving antenna (8). The secondary winding L2 can have a larger number of loops than the primary winding L1 or it can be formed by only one winding in the form of a pipe.
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