US 7,609,212 B2Granted

Portable wireless unit

AssigneePanasonic Corporation

InventorsKenichi Sato, Yukinari Takahashi, Satoshi Watanabe

Life of this patent

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Abstract

A portable wireless unit having high antenna performance, which comprises: a first case having a first antenna element, a second antenna element and a second feeding section; a second case having a third antenna element, a third feeding section and a circuit board provided with a ground pattern; and a coupling section consisting of first and second electrically connected conductive coupling elements and coupling the first case and the second case to be extended and housed freely. The second coupling element is provided in the first case while being connected electrically with the first antenna element, the first coupling element is provided in the second case while being connected electrically with the first feeding section, and the first antenna element, the coupling section, and the ground pattern are operated as a dipole antenna.

Claims7

Dependent claims

A portable wireless unit having a first case and a second case, comprising:

a coupling section coupling the first case and the second case to be extended and housed freely;
a first antenna element and a second antenna element, provided at the first case;
a third antenna element provided at the second case;
a circuit board provided inside the second case and having a ground pattern;
a first feeding section for feeding to the first antenna element connected to a wireless circuit section on the circuit board;
a second feeding section for feeding to the second antenna element;
and
a third feeding section for feeding to the third antenna element, wherein
the coupling section is formed of a first conductive coupling element and a second conductive coupling element, which are electrically connected with each other,
the second coupling element is provided at the first case and connected electrically with an end of the first antenna element,
the first coupling element is provided at the second case and connected electrically with the first feeding section, and
the first antenna element, the coupling section and a ground pattern on the circuit board are operated as a dipole antenna.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/718,165Filed 8 Nov 2005
Priority: JP 2004-3233798 Nov 2004
Published: US 2009/0066585 A112 Mar 2009
Granted: 27 Oct 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H01Q 21/29
Antenna arrays or systems: combinations of different interacting antenna units for giving a desired directional characteristic
H01Q 1/243
Specially adapted for hand-held use: with built-in antennas
H01Q 9/16
Resonant antennas: with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
H04M 1/0235
Characterized by the relative motions of the body parts: slidable or telescopic telephones, i.e. with a relative translation movement of the body…

Family

US 2009/0066585 A1Pre-grant publication · published 12 Mar 2009
US 7,609,212 B2This patent

From the US filing history. Foreign family members aren’t listed.

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