发明名称 |
SMALL-SIZE WIDE-BAND ANTENNA AND RADIO COMMUNICATION DEVICE |
摘要 |
<p>A small-size wide-band antenna (103) includes a radiation element formed on a dielectric substrate (1) and a coaxial cable (2) as power supply unit for supplying dipole potential to the radiating element. The radiation element includes a ground potential unit to which ground potential is supplied via an external conductor (4) of the coaxial cable and an opposite-pole potential unit to which a potential forming a pair with the ground potential is supplied via a center conductor (3) of the coaxial cable. The ground potential unit includes a pair of conductors (13,14) formed in a tapered shape on the front and rear surfaces of the dielectric substrate and mutually capacitively coupled. The opposite-pole potential unit includes a pair of conductors (31,32) formed in a tapered shape on the front and rear surfaces of the dielectric substrate and mutually capacitively coupled. Each of the ground potential unit and opposite-pole potential unit has a power supply point at a tapered apex of the conductor (13,31). The small-size wide-band antenna (103) further includes a stub conductor (17) as an impedance matching unit for matching the impedance between the radiation element and power supply unit.</p> |
申请公布号 |
EP1993169(A4) |
申请公布日期 |
2009.09.23 |
申请号 |
EP20070714243 |
申请日期 |
2007.02.15 |
申请人 |
NEC CORPORATION;NEC ELECTRONICS CORPORATION |
发明人 |
KURAMOTO, AKIO;MOCHIZUKI, TAKUJI |
分类号 |
H01Q9/40;H01Q1/38;H01Q9/06;H01Q9/26;H01Q9/28 |
主分类号 |
H01Q9/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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