Title:
REFLECT ARRAY, DESIGN METHOD, AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/128745
Kind Code:
A1
Abstract:
A method for designing a reflect array, which reflects an incident wave in a desired direction and in which multiple elements are disposed on a substrate having a surface that is perpendicular to a predetermined axis, involves repeating the following steps for each of the multiple elements: a step for obtaining, as the function of a design parameter, the reflection phase of the elements when an electric wave enters into and then is reflected by the multiple elements arranged such that the element distance, the patch of the elements or the gap between adjacent elements have the same design parameter; a step for saving the correspondence relationship between the reflection phase and the design parameter to a memory; and a step for determining the design parameter of a specific element on the basis of the correspondence relationship. The function of the design parameter has a range of values that is essentially in a 360° range relative to the predetermined numerical range of the design parameter, is a function in which the reflection phase continuously changes relative to the element distance, and is a continuous function having two resonance points (the element distance that resonates) in which the reflection phase becomes zero (exhibits double resonance characteristics).
Inventors:
MARUYAMA TAMAMI (JP)
ODA YASUHIRO (JP)
KAYAMA HIDETOSHI (JP)
TRAN NGOC HAO (JP)
SHEN JIYUN (JP)
ODA YASUHIRO (JP)
KAYAMA HIDETOSHI (JP)
TRAN NGOC HAO (JP)
SHEN JIYUN (JP)
Application Number:
PCT/JP2012/081294
Publication Date:
September 06, 2013
Filing Date:
December 03, 2012
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H01Q15/14
Foreign References:
| JP2009207078A | 2009-09-10 | |||
| JP2008147763A | 2008-06-26 | |||
| JP2011019021A | 2011-01-27 | |||
| JP2004514364A | 2004-05-13 | |||
| US20110210906A1 | 2011-09-01 |
Other References:
TAMAMI MARUYAMA ET AL.: "Design of Mushroom Reflectarray using dual resonance at TM oblique incidence", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, 2012 NEN_TSUSHIN (1), vol. 164, 6 March 2012 (2012-03-06), XP008174526
OLLI LUUKKONEN; MARIO G. SILVEIRINHA; ALEXANDER B. YAKOVLEV; SENIOR, CONSTANTIN R.; SIMOVSKI, IGOR S. NEFEDOV; SERGEI A. TRETYAKOV: "Effects of Spatial Dispersion on Reflection From Mushroom-Type Artificial Impedance Surfaces", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 57, no. 11, November 2009 (2009-11-01), XP011278191, DOI: doi:10.1109/TMTT.2009.2032458
OLLI LUUKKONEN; MARIO G. SILVEIRINHA; ALEXANDER B. YAKOVLEV; SENIOR, CONSTANTIN R.; SIMOVSKI, IGOR S. NEFEDOV; SERGEI A. TRETYAKOV: "Effects of Spatial Dispersion on Reflection From Mushroom-Type Artificial Impedance Surfaces", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 57, no. 11, November 2009 (2009-11-01), XP011278191, DOI: doi:10.1109/TMTT.2009.2032458
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Tadashige Ito (JP)
Tadashige Ito (JP)
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