Title:
円偏波アンテナを有するアンテナシステム
Document Type and Number:
Japanese Patent JP2013522962
Kind Code:
A
Abstract:
An antenna system includes a circularly polarized (CP) antenna for receiving and/or transmitting a circularly polarized RF signal. The CP antenna includes a pair of radiating patches each having an elongated shape. An elongated axis is defined along a longest length of each of the radiating patches. The elongated axes are disposed generally perpendicular to one another to generate the circular polarization. A coplanar waveguide feeding element is disposed between the radiating patches for feeding RF signals from and/or to the radiating patches via electromagnetic coupling. A width of the slot of the coplanar waveguide is varied to provide impedance matching of the CP antenna with a transmission line.
Inventors:
Lee, Kwan
Villa Roel, Vladimir
Villa Roel, Vladimir
Application Number:
JP2012557124A
Publication Date:
June 13, 2013
Filing Date:
March 04, 2011
Export Citation:
Assignee:
AG Automotive Americas R&D, Inc.
International Classes:
H01Q1/22; H01Q13/08; H01Q1/32; H01Q21/06
Domestic Patent References:
| JPH09219618A | 1997-08-19 | |||
| JPH03107203A | 1991-05-07 | |||
| JP2007251936A | 2007-09-27 | |||
| JP2008054080A | 2008-03-06 | |||
| JP2006013950A | 2006-01-12 |
Foreign References:
| US4980693A | 1990-12-25 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki