Title:
WIDE-BAND ANTENNA
Document Type and Number:
WIPO Patent Application WO2004038861
Kind Code:
A8
Abstract:
A monoconical antenna comprises a generally conical hollow formed in one end of a dielectric body, a radiation electrode formed on the surface of the hollow, and a ground conductor formed closely and generally parallel to the other opposing end of the dielectric body. An electrical signal is applied between a near-vertex portion of the radiation electrode and a portion of the ground conductor. The half-cone angle (alpha) of the generally conical hollow is determined according to a certain rule which corresponds to the relative dielectric constant (ɛr). With this constitution, the monoconical antenna is miniaturized through dielectric loading while sufficiently maintaining its intrinsic wide-band characteristics.
Inventors:
KURODA SHINICHI (JP)
ASAI HISATO (JP)
YAMAURA TOMOYA (JP)
ASAI HISATO (JP)
YAMAURA TOMOYA (JP)
Application Number:
PCT/JP2003/013487
Publication Date:
November 18, 2004
Filing Date:
October 22, 2003
Export Citation:
Assignee:
SONY CORP (JP)
KURODA SHINICHI (JP)
ASAI HISATO (JP)
YAMAURA TOMOYA (JP)
KURODA SHINICHI (JP)
ASAI HISATO (JP)
YAMAURA TOMOYA (JP)
International Classes:
H01Q1/38; H01Q1/40; H01Q1/48; H01Q9/04; H01Q9/28; H01Q9/38; H01Q9/40; H01Q19/09; (IPC1-7): H01Q9/38; H01Q9/40; H01Q1/48; H01Q1/38
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