Mobile communication terminal

• US 7,570,218 B2
• Filed: 08/01/2006
• Issued: 08/04/2009
• Est. Priority Date: 04/13/2006
• Status: Expired due to Fees

• Current Assignee: Toshiba Client Solutions CO., Ltd. (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Sato, Koichi, Tsujimura, Akihiro, Amano, Takashi, Hotta, Hiroyuki
• Primary Examiner(s): CHEN, SHIH CHAO
• Application Number:
  US11/496,822
• Publication Number:
  US 20070241971A1
• Time in Patent Office: 1,099 Days
• Field of Search: 343/700.MS, 343/702, 343/787, 343/872
• US Class Current: 343/702
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/165 the additional display being small, e.g. for presenting status information
• CPC Class Codes: G06F 1/1656 Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203
• CPC Class Codes: G06F 1/1698 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone details of antennas disposed inside a computer H01Q1/2266
• CPC Class Codes: H01F 1/26 by macromolecular organic substances
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40
• CPC Class Codes: H01Q 9/0421 with a shorting wall or a shorting pin at one end of the element H01Q9/0414 takes precedence
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/30 with feed to end of elongated active element, e.g. unipole H01Q9/44 takes precedence
• CPC Class Codes: H01R 12/718 Contact members provided on the PCB without an insulating housing contacts for abutting H01R12/714
• CPC Class Codes: H01R 2201/02 for antennas
• CPC Class Codes: H01R 2201/16 for telephony
• CPC Class Codes: H04M 1/026 Details of the structure or mounting of specific components
• CPC Class Codes: H05K 1/0284 Details of three-dimensional rigid printed circuit boards H05K1/119 takes precedence; shaping of the substrate H05K3/0014
• CPC Class Codes: H05K 3/182 characterised by the patterning method

Abstract

An antenna element made of an electrically conductive material pattern is printed and formed on a face of a casing made of an electrically nonconductive material having a circuit board housed therein, and the antenna element and the circuit board are electrically connected to each other by a connecting element.

Claims

1. A mobile communication terminal, comprising:

a casing made of an electrically nonconductive material, the casing having housed therein a circuit board on which a radio power supply circuit and a ground plane have been formed;

an antenna element made of an electrically conductive material pattern, the antenna element being printed on a face of the casing; and

a connecting element which electrically connects the antenna element and the circuit board;

wherein the connecting element comprises;

a radio power supply pad allocated between the antenna element and the circuit board;

a first connecting element which makes a connection between the antenna element and the radio power supply pad; and

a second connecting element which makes a connection between the radio power supply pad and the circuit board.

2. The mobile communication terminal according to claim 1, further comprising:

a magnetic member interposed between the antenna element and the circuit board, wherein the magnetic member comprises magnetic nano-particles having a magnetic property dispersed on an insulating matrix substrate.

3. The mobile communication terminal according to claim 1, further comprising:

a coat member made of an electrically nonconductive material, the coat member being coated at least on the antenna element.

4. The mobile communication terminal according to claim 1, further comprising:

a spacer installed on the casing at a site at which the antenna element is not installed, the spacer having a height equivalent to a thickness of the antenna element.

5. The mobile communication terminal according to claim 1, wherein:

the casing comprises a hollow having a depth which is equivalent to a thickness of the antenna element, and

the antenna element is formed or installed on a bottom face of the hollow.

6. The mobile communication terminal according to claim 1, wherein the antenna element further comprises a stab made of an electrically conductive material pattern, the stab being led into the casing via a gap formed in the casing from outside the casing.

7. The mobile communication terminal according to claim 1, wherein the first connecting element electrically connects the antenna element and the radio power supply pad via a through-hole penetrating through the casing.

8. The mobile communication terminal according to claim 1, wherein the first connecting element comprises a signal line or a conductive material pattern wired from a surface side to a back face side of the casing via a rim part of the casing, and electrically connects the antenna element and the radio power supply pad by the signal line or conductive material pattern.

9. The mobile communication terminal according to claim 1, wherein the first connecting element comprises a capacitive coupling section provided between the antenna element and the radio power supply pad, and the capacitive coupling section is configured by setting a thickness of a site sandwiched between the antenna element and the radio power supply pad at a predetermined value.

10. The mobile communication terminal according to claim 1, wherein the second connecting element comprises a spring connector arranged between the radio power supply pad and the circuit board.

11. A mobile communication terminal, comprising:

a casing made of an electrically nonconductive material, the casing having housed therein a circuit board on which a radio power supply circuit and a ground plane have been formed;

an antenna unit installed on a face of the casing, the antenna unit comprising an antenna substrate made of an electrically nonconductive material and an antenna element made of an electrically conductive material pattern printed on a face of the antenna substrate; and

a connecting element which makes an electrical connection between the antenna element of the antenna unit and the circuit board;

wherein the connecting element comprises;

a radio power supply pad allocated between the antenna unit and the circuit board;

a first connecting portion which makes an electrical connection between the antenna element of the antenna unit and the radio power supply pad; and

a second connecting element which makes an electrical connection between the radio power supply pad and the circuit board.

12. The mobile communication terminal according to claim 11, further comprising:

a magnetic member interposed between the antenna element and the circuit board, wherein the magnetic member comprises magnetic nano-particles having a magnetic property dispersed on an insulating matrix substrate.

13. The mobile communication terminal according to claim 11, further comprising:

a coat member made of an electrically nonconductive material, the coat member being coated at least on the antenna element.

14. The mobile communication terminal according to claim 11, further comprising:

a spacer installed on the casing at a site at which the antenna unit is not installed, the spacer having a height that is equivalent to a thickness of the antenna unit.

15. The mobile communication terminal according to claim 11, wherein:

the casing comprises a hollow having a depth which is equivalent to a thickness of the antenna element, and

the antenna element is formed or installed on a bottom face of the hollow.