Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MULTI-BEAM REFLECTARRAY
Document Type and Number:
WIPO Patent Application WO/2013/031539
Kind Code:
A1
Abstract:
In each of a first element group and a second element group contained in at least one of the element arrays of a multi-beam reflectarray that comprises two or more element arrays containing multiple elements arrayed along a prescribed direction, the phase difference of radio waves reflected by each of two elements is proportional to the product of the space between the two elements and the value of a trigonometric function of the angle of reflection from the elements, and the space between adjacent elements in the first element group is equal to a rational number multiple of the space between adjacent elements in the second element group.

More Like This:
Inventors:
MARUYAMA, Tamami (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
丸山 珠美 (〒50 東京都千代田区永田町2丁目11番1号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 〒1006150, JP)
ODA, Yasuhiro (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
小田 恭弘 (〒50 東京都千代田区永田町2丁目11番1号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 〒1006150, JP)
SHEN, Jiyun (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
Application Number:
JP2012/070762
Publication Date:
March 07, 2013
Filing Date:
August 15, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NTT DOCOMO, INC. (11-1, Nagatacho 2-chome Chiyoda-k, Tokyo 50, 〒1006150, JP)
株式会社 エヌ・ティ・ティ・ドコモ (〒50 東京都千代田区永田町2丁目11番1号 Tokyo, 〒1006150, JP)
MARUYAMA, Tamami (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
丸山 珠美 (〒50 東京都千代田区永田町2丁目11番1号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 〒1006150, JP)
ODA, Yasuhiro (INC. SANNO PARK TOWER 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 〒1006150, JP)
小田 恭弘 (〒50 東京都千代田区永田町2丁目11番1号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 〒1006150, JP)
International Classes:
H01Q15/14
Domestic Patent References:
WO2010137713A12010-12-02
Foreign References:
JP2010062689A2010-03-18
JP2009207078A2009-09-10
Other References:
TAMAMI MARUYAMA ET AL.: "Characteristics of multi-beam reflectarray for oblique incidence", 2011 NEN PROCEEDINGS OF THE SOCIETY CONFERENCE OF IEICE 1, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, 30 August 2011 (2011-08-30), pages 66, XP008171044
KOJI IBATA ET AL.: "Reflection Control Using Non-periodical High-Impedance Surface", IEICE TECHNICAL REPORT, vol. 110, no. 1, 2 April 2010 (2010-04-02), pages 5 - 8, XP008170518
KOJI IBATA ET AL.: "The Reflection Property of Non-Periodical High-Impedance Surface with an Oblique Incidence", 2010 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, 2 March 2010 (2010-03-02), pages 168, XP008171582
See also references of EP 2624364A4
T. MARUYAMA, T. FURUNO, AND S.UEBAYASHI,: "Experiment and analysis of reflect beam direction control using a reflector having periodic tapered mushroom-like structure", ISAP2008, MO-IS1, 1644929,, pages 9
JOHN HUANG; JOSE A. ENCINAR: "Reflectarray", 2007, IEEE PRESS, pages: 169 - 179
Attorney, Agent or Firm:
ITOH, Tadashige et al. (16th Floor, Marunouchi MY PLAZA 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
Download PDF:
Claims: