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Patent Searching and Data


Title:
SCANNING ANTENNA AND METHOD FOR DRIVING SAME
Document Type and Number:
WIPO Patent Application WO/2017/061526
Kind Code:
A1
Abstract:
A scanning antenna (1000) is a scanning antenna in which antenna units U are arranged and has: a TFT substrate (101) having a first dielectric substrate (1), TFTs, gate bus lines, source bus lines, and patch electrodes (15); a slot substrate (201) having a second dielectric substrate (51) and a slot electrode (55) formed on a first principal surface of the second dielectric substrate; a liquid crystal layer LC provided between the TFT substrate and the slot substrate; and a reflecting conductive plate (65) provided so as to face, with a dielectric layer (54) therebetween, a second principal surface on the reverse side of the first principal surface of the second dielectric substrate (51). The slot electrode has slots provided corresponding to the respective patch electrodes, and each of the patch electrodes is connected to the drain of the corresponding TFT and is supplied with a data signal from the corresponding source bus line while being selected by a scanning signal supplied from the gate bus line of the corresponding TFT. The frequency at which the polarity of a voltage applied to the patch electrode is reversed is 300 Hz or more.

Inventors:
NAKANO FUMIKI
MINOURA KIYOSHI
MORI SHIGEYASU
NAKAZAWA MAKOTO
ORUI TAKATOSHI
Application Number:
PCT/JP2016/079733
Publication Date:
April 13, 2017
Filing Date:
October 06, 2016
Export Citation:
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Assignee:
SHARP KK (JP)
International Classes:
H01Q3/34; G02F1/13; H01Q3/44; H01Q13/22
Foreign References:
JPH04234202A1992-08-21
JP2009538565A2009-11-05
JP2000022428A2000-01-21
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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