Communication antenna unit and mobile terminal apparatus

• US 9,270,795 B2
• Filed: 12/16/2013
• Issued: 02/23/2016
• Est. Priority Date: 12/18/2012
• Status: Expired due to Fees

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Imano, Daigo, Endo, Keita, Kato, Teruo, Kuriyama, Futoshi, Sawada, Tatsuo, Yasutomi, Kenya, Fukao, Chizu, Yoshida, Kotaro
• Primary Examiner(s): Cai, Wayne
• Application Number:
  US14/106,965
• Publication Number:
  US 20140171159A1
• Time in Patent Office: 799 Days
• Field of Search: 4555751-5758, 343/872
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H04B 1/3883 Arrangements for mounting batteries or battery chargers
• CPC Class Codes: H04B 1/3888 Arrangements for carrying or protecting transceivers
• CPC Class Codes: H04M 1/0262 for a battery compartment

Abstract

In a communication antenna unit which is stored inside a casing, a flexible circuit board is supported by a support member in a bent state. A first antenna conductor pattern which configures a first communication antenna and a human body sensor are substantially formed on a flat plane section of the flexible circuit board adjacent to a curved section of the flexible circuit board. A second antenna conductor pattern which configures a second communication antenna is substantially formed on the curved section. The first antenna conductor pattern and the second antenna conductor pattern are connected to each other through an inductor coil which configures a resonant circuit portion.

Claims

1. A communication antenna apparatus comprising:

a communication antenna formed of a conductor pattern, the communication antenna including a flat plane section and a curved section adjacent to the flat plane section;

a human body sensor formed of another conductor pattern separately from the communication antenna; and

a single unit board on which the communication antenna and the human body sensor are formed,

wherein the communication antenna is provided in the flat plane section and the curved section, and the human body sensor is provided in the flat plane section.

2. The communication antenna apparatus according to claim 1, further comprising:

a first reactance element which connects the communication antenna to the human body sensor.

3. The communication antenna apparatus according to claim 2, wherein

the communication antenna further includes:

a first communication antenna configured by a first antenna conductor pattern provided on the unit board and adapted to transmit or receive a radio wave in a first frequency; and

a second communication antenna configured by the first antenna conductor pattern and a second antenna conductor pattern provided adjacent to the first antenna conductor pattern on the circuit board and configured to transmit or receive a radio wave in a second frequency, wherein the first reactance element connects the first antenna conductor pattern to the human body sensor.

4. The communication antenna unit apparatus according to claim 3, wherein

one of the first and second communication antenna conductor patterns is at least partly formed in the curved section, and

the other of the first and second communication antenna conductor patterns and the human body are formed in the flat plane section.

5. A mobile terminal apparatus comprising:

a casing; and

a communication antenna unit disposed in the casing, wherein

the communication antenna unit includes;

a flat plane section;

a curved section adjacent to the flat plane section;

a communication antenna formed of a conductor pattern;

a human body sensor formed of another conductor pattern separately from the communication antenna; and

a single unit board on which the communication antenna and the human body sensor are formed,

wherein the communication antenna is provided in the flat plane section and the curved section, and the human body sensor is provided in the flat plane section.

6. The mobile terminal apparatus according to claim 5, further comprising:

a display including a display surface on the casing, wherein

a flat plane section of the communication antenna unit is arranged closer to a surface opposite to the display surface than to the display surface.

7. The mobile terminal apparatus according to claim 5, further comprising:

a first reactance element which connects the communication antenna to the human body sensor.

8. The mobile terminal apparatus according to claim 7, further comprising:

a capacitor which connects the communication antenna to a transmission and reception circuit provided in the casing.

9. The mobile terminal apparatus according to claim 5, wherein

the communication antenna is disposed at a position closer to a corner of the casing than the human body sensor is disposed.

10. The mobile terminal apparatus according to claim 9, further comprising:

a first reactance element which connects the communication antenna to the human body sensor.

11. The mobile terminal apparatus according to claim 10, further comprising:

a capacitor which connects the communication antenna to a transmission and reception circuit provided in the casing.

12. The mobile terminal apparatus according to claim 5, further comprising:

a battery pack that is accommodated in the casing, wherein

the human body sensor and the communication antenna are provided on a corner portion on a side opposite the battery pack in the casing.

13. The mobile terminal apparatus according to claim 5, further comprising:

a circuit board that is accommodated in the casing;

a battery pack that is accommodated in the casing;

a power receptor that is held in the casing;

a power feeder that is provided in the battery pack and connected to the power receptor;

a plurality of terminal plates, each having one end to be held on one surface which is included in the power receptor, and having two widest surfaces which are parallel to each other, one of which facing and being parallel to one of two widest surfaces of an adjacent terminal plate, wherein the plurality of terminal plates are aligned along a direction orthogonal to those two widest surfaces; and

a flexible circuit board that includes a flexible bendable portion provided along the direction in which the plurality of terminal plates are aligned and connects the circuit board to the power receptor.

14. The mobile terminal apparatus according to claim 13, further comprising:

a U-shaped portion provided between the power receptor and the bendable portion of the flexible board, wherein

the U-shaped portion has a U shape when viewed from a direction orthogonal to a wiring surface of the flexible board and protrudes toward an opposite side of the power receptor with respect to the bendable portion in a direction parallel to the wiring surface of the flexible circuit board and the two widest surfaces of the plurality of terminal plates.

15. The mobile terminal apparatus according to claim 5, comprising:

a battery pack that is accommodated in the casing;

an accommodation portion which the battery pack is attachable to and detachable from;

a power receptor that is held in the casing; and

a power feeder that is provided in the battery pack and detachably connected to the power receptor, wherein the battery pack includes a first waterproof member, and

the power receptor and the power feeder are disposed in an inner side of the accommodation portion than the first waterproof member of the battery pack in a state where the battery pack is accommodated in the accommodation portion.

16. The mobile terminal apparatus according to claim 15, further comprising:

a recess that is provided outside the accommodation portion for the battery pack in the casing;

a lid configured to close the recess; and

a hole that is provided on a bottom surface of the recess, and is covered with a water stopper which prevents a liquid passing through from an exterior into an interior of the casing, and allows air to pass through between the exterior and the interior of the casing.

17. The mobile terminal apparatus according to claim 16, further comprising:

a through hole that is provided on the bottom surface of the recess and allows access from the exterior of the casing to the circuit board; and

a frame-shaped second waterproof member that surrounds the through hole and is disposed between the bottom surface of the recess and a rear surface of the lid to be in close contact therewith, wherein

the hole is provided outside the second waterproof member in the bottom surface of the recess portion.

18. The mobile terminal apparatus according to claim 5, further comprising:

a second communication antenna,

wherein one of the communication antenna and the second communication antenna is provided at a position closer to a corner of the casing than the human body sensor is provided.