WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |

Search International and National Patent Collections
World Intellectual Property Organization
Machine translation
1. (WO2004095638) ANTENNA DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/095638    International Application No.:    PCT/JP2004/005693
Publication Date: 04.11.2004 International Filing Date: 21.04.2004
H01Q 9/30 (2006.01), H01Q 9/36 (2006.01)
Applicants: COCOMO MB COMMUNICATIONS, INC. [JP/JP]; Sakurada-dori Building 3F 1-2-10, Toranomon Minato-ku, Tokyo 1050001 (JP) (For All Designated States Except US).
HAGIWARA, Yoshihiro [JP/JP]; (JP) (For US Only).
SHIMIZU, Kosaku [JP/JP]; (JP) (For US Only).
KATO, Katsumi [JP/JP]; (JP) (For US Only).
SAKUMA, Yuichi [JP/JP]; (JP) (For US Only).
HAGIWARA, Ippei [JP/JP]; (JP) (For US Only).
KOBAYASHI, Kenji [JP/JP]; (JP) (For US Only)
Inventors: HAGIWARA, Yoshihiro; (JP).
SHIMIZU, Kosaku; (JP).
KATO, Katsumi; (JP).
SAKUMA, Yuichi; (JP).
HAGIWARA, Ippei; (JP).
Agent: HAYASHI, Keisuke; Sonpo Japan Kamata Building 9F 5-24-2, Kamata, Ota-ku, Tokyo 144-0052 (JP)
Priority Data:
2003-116664 22.04.2003 JP
(JA) アンテナ装置
Abstract: front page image
(EN)An antenna device (10) is composed of a radio wave resonance section (12) of an antenna and a non-earthed, a conductive cover (20) so installed as to extend over the region where the transmission/reception radio wave from/by the radio wave resonance section (12) passes. There is an insulation gap between the two constituent parts. When, for example, a discone antenna is used as the radio wave resonance section (12), the S/N ratio can be improved in a wide bandwidth. An antenna device having an improved S/N ratio is provided by a different radio-wave communication technology from the conventional one such as installation of a screen.
(FR)L'invention concerne un dispositif antenne (10) composé d'une section de résonance d'ondes radio (12) et d'un capot conducteur non relié à la terre (20), installé de telle manière qu'il s'étend au-dessus de la zone dans laquelle passent les ondes radio de transmission/réception en provenance/direction de la section de résonance d'ondes radio. Un espace d'isolation est créé entre les deux parties constitutives. Lorsqu'une antenne discône est par exemple employée en tant que section de résonance d'ondes radio, le rapport signal sur bruit peut être amélioré sur une grande bande passante. Un dispositif antenne présentant un meilleur rapport signal sur bruit est obtenu au moyen d'une technologie de communication par ondes radio différente de la technologie habituelle consistant à installer un écran.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)