BUILT-IN ANTENNA OF WIRELESS COMMUNICATION TERMINAL

Title:

BUILT-IN ANTENNA OF WIRELESS COMMUNICATION TERMINAL

Document Type and Number:

WIPO Patent Application WO/2001/048860

Kind Code:

A1

Abstract:

A dipole antenna (12) is composed of a meandering antenna element, which extends perpendicularly to the upper (horizontal) surface of a wireless communication terminal. The signal received at the dipole antenna (12) is sent to a transmitting and receiving circuit through a balanced-to-unbalanced transformer (13). The balanced-to-unbalanced transformer (13) minimizes the current flowing to a ground plane (11), thus preventing the ground plane (11) from acting as an antenna.

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Inventors:

ITO HIDEO (JP)
EGAWA KIYOSHI (JP)

Application Number:

PCT/JP2000/004044

Publication Date:

July 05, 2001

Filing Date:

June 21, 2000

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
ITO HIDEO (JP)
EGAWA KIYOSHI (JP)

International Classes:

H01Q1/24; H01Q1/36; H01Q1/38; H01Q9/04; H01Q9/28; H01Q9/42; H01Q21/28; (IPC1-7): H01Q1/24; H01Q1/36; H01Q9/16; H01Q9/28

Foreign References:

JPH07142921A	1995-06-02
JPS60240201A	1985-11-29

Other References: