Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/050441
Kind Code:
A1
Abstract:
Provided is an antenna device which is small and low in height to be easily mounted on
a small radio and forms a main beam, which has excellent radiation pattern frequency characteristics
and is tilted in the horizontal direction. Slot elements (103a, 103b) of an antenna
(101) are excited with a phase difference (δ). A reflection plate (105)
is provided with a plurality of patch elements (107) having a resonance frequency
higher than the center frequency of the antenna (101), and a plurality of patch
elements (108) having a resonance frequency lower than the center frequency of
the antenna (101) around the patch elements (107).
Inventors:
UNO HIROYUKI
SAITOH YUTAKA
KOYANAGI YOSHIO
SAITOH YUTAKA
KOYANAGI YOSHIO
Application Number:
PCT/JP2006/321429
Publication Date:
May 02, 2008
Filing Date:
October 26, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
UNO HIROYUKI
SAITOH YUTAKA
KOYANAGI YOSHIO
UNO HIROYUKI
SAITOH YUTAKA
KOYANAGI YOSHIO
International Classes:
H01Q15/14; H01Q3/24; H01Q9/16; H01Q13/10
Foreign References:
| JP2005110273A | 2005-04-21 | |||
| JP2006086578A | 2006-03-30 | |||
| JP2004514364A | 2004-05-13 | |||
| JP2003304113A | 2003-10-24 | |||
| JP2005538629A | 2005-12-15 | |||
| JP2005094360A | 2005-04-07 | |||
| JP2005210520A | 2005-08-04 | |||
| JP2006253929A | 2006-09-21 |
Other References:
UNO H., SAITO H., KOYANAGI Y.: "EBG Hanshaban o Mochiita Tilt Beam Kirikae Antenna", 2006 NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU TSUSHIN 1, 8 March 2006 (2006-03-08), pages ABSTR. NO. B-1-63, XP003022363
ASANO Y., YAMAUCHI J., NAKANO H.: "Yudentai ni Insatsu Sareta EBG Hanshaban Kochi 2 Senshiki Strip Spiral Antenna", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, TSUSHIN 1, 3 August 2006 (2006-08-03), pages ABSTR. NO. B-1-62, XP003022364
ASANO Y., YAMAUCHI J., NAKANO H.: "Yudentai ni Insatsu Sareta EBG Hanshaban Kochi 2 Senshiki Strip Spiral Antenna", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, TSUSHIN 1, 3 August 2006 (2006-08-03), pages ABSTR. NO. B-1-62, XP003022364
Attorney, Agent or Firm:
WASHIDA, Kimihito (Shintoshicenter Bldg.24-1, Tsurumaki 1-chome,Tama-sh, Tokyo 34, JP)
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