Title:
OMNIDIRECTIONAL ANTENNA
Document Type and Number:
Japanese Patent JP2009071397
Kind Code:
A
Abstract:
To provide a small and lightweight omnidirectional antenna.
A first dipole antenna 11 in which a first element 11a and a second element 11b cross substantially at right angles is formed on a printed circuit board 10, and a second dipole antenna 12 in which a third element 12a and a fourth element 12b cross substantially at right angles is formed, thereby forming the omnidirectional antenna 1. In this way, the small and lightweight omnidirectional antenna 1 can be provided. Further, the omnidirectional antenna 1 can operate in a wide band and can obtain excellent omnidirectivity.
Inventors:
MATSUOKA NOBORU
MASUDA KENJI
MASUDA KENJI
Application Number:
JP2007234981A
Publication Date:
April 02, 2009
Filing Date:
September 11, 2007
Export Citation:
Assignee:
NIPPON ANTENNA KK
International Classes:
H01Q21/26; H01Q1/38; H01Q9/16; H01Q9/44
Domestic Patent References:
| JP2002280828A | 2002-09-27 | |||
| JP2004289371A | 2004-10-14 | |||
| JP2008539652A | 2008-11-13 | |||
| JP2001196824A | 2001-07-19 | |||
| JP2008205679A | 2008-09-04 |
Foreign References:
| WO2006118496A1 | 2006-11-09 |
Attorney, Agent or Firm:
Yasuo Asami
Hideo Takahashi
Yoshitaka Takeyama
Takamori Suzuki
Eiichi Sobue
Hideo Takahashi
Yoshitaka Takeyama
Takamori Suzuki
Eiichi Sobue