Collapsable Portable Wireless Unit

• US 20080018542A1
• Filed: 04/25/2005
• Published: 01/24/2008
• Est. Priority Date: 04/26/2004
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Yamazaki, Yukari, Saito, Yutaka, Koyanagi, Yoshio, Nishikido, Tomoaki, Katayama, Hiroshi
• Granted Patent: US 7,839,340 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 9/0435 using two feed points
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface

Abstract

A collapsable portable wireless unit (100) comprises an upper case (101) and a lower case (102) coupled through a hinge member (103) to open/close freely. A planar conductor (105) is arranged on the upper case (101). First and second power supply sections (111, 112, 103) are arranged on the planar conductor (105) at a specified interval. A harmonic signal distributor (120) is arranged on a circuit board (110) provided in the lower case (102) and distributes a harmonic signal to the first and second power supply sections (111, 112, 103). A phase shifter (121) sets the exciting phase of the harmonic signal in the second power supply sections (112, 103) at a value different from that of the exciting phase of the harmonic signal in the first power supply sections (111, 103).

Claims

1. A foldable mobile wireless apparatus having an upper case and a lower case, said upper case and lower case being connected by a hinge member and able to be opened and closed, the foldable mobile wireless apparatus comprising:

a flat conductor that is provided in the upper case;

a first feeding section and a second feeding section that are provided on the flat conductor spaced by a predetermined distance;

a circuit board that is provided in the lower case;

a harmonic signal distributing section that is provided on the circuit board and distributes a harmonic signal to the first feeding section and the second feeding section;

a harmonic signal supplying section that supplies the harmonic signal to the harmonic signal distributing section; and

a phase setting section that sets an excitation phase of the harmonic signal at the second feeding section to a different value from an excitation phase of the harmonic signal at the first feeding section.

2. The foldable mobile wireless apparatus according to claim 1, further comprising a phase difference controlling section that controls a phase difference between the harmonic signal excited by the first feeding section and the harmonic signal excited by the second feeding section.

3. The foldable mobile wireless apparatus according to claim 1, further comprising an inclination angle detection section that detects an inclination angle of the foldable mobile wireless apparatus and generates a value of the detected inclination angle,

wherein the phase difference controlling section controls the phase difference in accordance with the value of the inclination angle detected by the inclination angle detection section.

4. A foldable mobile wireless apparatus having an upper case and a lower case, said upper case and lower case being connected by a hinge member and able to be opened and closed, the foldable mobile wireless apparatus comprising:

a first conductor and a second conductor that are arranged in the upper case spaced by a predetermined distance such that main polarized wave directions differ;

a first feeding section and a second feeding section that are provided on the first conductor and the second conductor;

a circuit board that is provided in the lower case;

a harmonic signal distributing section that is provided on the circuit board and distributes a harmonic signal to the first feeding section and the second feeding section;

a harmonic signal supplying section that supplies the harmonic signal to the harmonic signal distributing section; and

a phase setting section that sets an excitation phase of the harmonic signal at the second feeding section to a different value from an excitation phase of the harmonic signal at the first feeding section.