Title:
ARRAY ANTENNA
Document Type and Number:
WIPO Patent Application WO/2014/115427
Kind Code:
A1
Abstract:
In this array antenna, if (a) a pair of antennas (130) are used and transmission signals having the same phase are supplied in parallel via two secondary cables (33) branching off of a main cable (32), letting Z represent the impedance of the main cable (32), the impedance of each secondary cable (33) and the input impedance of each antenna (130) is set to 2Z; if (b) a set of three antennas (130) is used, the impedance of each secondary cable (33) and the input impedance of each antenna (130) is set to 3Z; and if (c) a set of N antennas (130) is used, the impedance of each secondary cable (33) and the input impedance of each antenna (130) is set to N×Z. In each case, the impedances match over a wide frequency band.
Inventors:
LI ZHANGHUAN (JP)
SHIMURA TAKESHI (JP)
SHIMURA TAKESHI (JP)
Application Number:
PCT/JP2013/082643
Publication Date:
July 31, 2014
Filing Date:
December 04, 2013
Export Citation:
Assignee:
NIPPON DENGYO KOSAKU KK (JP)
International Classes:
H01Q21/08; H01Q1/42; H01Q1/50; H01Q9/28
Foreign References:
| JP2011249920A | 2011-12-08 | |||
| JP2006157845A | 2006-06-15 | |||
| JP2004032392A | 2004-01-29 | |||
| JP2009517958A | 2009-04-30 | |||
| JP2006203428A | 2006-08-03 |
Other References:
See also references of EP 2950394A4
Attorney, Agent or Firm:
FURUBE, Jiro et al. (JP)
Jiro Furube (JP)
Jiro Furube (JP)
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