Title:
指向性ダイポール・アンテナ
Document Type and Number:
Japanese Patent JP2008507163
Kind Code:
A
Abstract:
A dual polarized variable beam tilt antenna having a superior Sector Power Ratio (SPR). The antenna may have slant 45 dipole radiating elements including directors, and may be disposed on a plurality of tilted element trays to orient an antenna boresight downtilt. The directors may be disposed above or about the respective dipole radiating elements. The antenna has a beam front-to-side ratio exceeding 20 dB, a horizontal beam front-to-back ratio exceeding 40 dB, a high-roll off, and is operable over an expanded frequency range.
Inventors:
Les, Kevin
Meia, Louise, Jay
Vithless, pete
Meia, Louise, Jay
Vithless, pete
Application Number:
JP2007515075A
Publication Date:
March 06, 2008
Filing Date:
April 13, 2005
Export Citation:
Assignee:
Andrew, Copa Leishan
International Classes:
H01Q19/00; H01Q3/32; H01Q5/10; H01Q9/16; H01Q19/30; H01Q21/08; H01Q21/30
Domestic Patent References:
| JP2002135031A | 2002-05-10 | |||
| JPH1155032A | 1999-02-26 | |||
| JPH04291806A | 1992-10-15 |
Attorney, Agent or Firm:
Yuzo Sanada
Ohara Shizuo
Ohara Shizuo