SIGNAL RECEIVING APPARATUS AND WIRELESS COMMUNICTION DEVICE

• US 20130023220A1
• Filed: 06/19/2012
• Published: 01/24/2013
• Est. Priority Date: 07/20/2011
• Status: Abandoned Application

• Current Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.), Shenzhen Futaihong Precision Industry Company Limited (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Chi Mei Communication Systems Incorporated (Hon Hai Precision Industry Co., Ltd.), Shenzhen Futaihong Precision Industry Company Limited (Hon Hai Precision Industry Co., Ltd.)
• Inventors: CHEN, HAO
• Application Number:
  US13/526,542
• Publication Number:
  US 20130023220A1
• Time in Patent Office: Days
• US Class Current: 455/77
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 5/40 Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
• CPC Class Codes: H01Q 7/005 with variable reactance for tuning the antenna

Abstract

A signal receiving apparatus includes a first base member, a first coil, and a tuning circuit. The first coil is coiled around the first base member to from a first loop antenna having a plurality of parallel and spaced coil portions and two signal output terminals. The tuning circuit includes a first variable capacitor connected between the two signal output terminals.

Claims

1. A signal receiving apparatus, comprising:

a first base member;

a first coil coiled around the first base member and forming a first loop antenna having a plurality of parallel and spaced coil portions and two signal output terminals; and

a tuning circuit comprising a first variable capacitor connected between the two signal output terminals.

2. The signal receiving apparatus of claim 1, wherein the first base member is a rectangular hollow and insulating sleeve.

3. The signal receiving apparatus of claim 1, wherein the first coil is a radio frequency line.

4. The signal receiving apparatus of claim 1, further comprising a resonating unit, wherein the first base member, the first coil, and the tuning circuit are received in the resonating unit, the resonating unit resonates with the tuning circuit.

5. The signal receiving apparatus of claim 4, wherein the resonating unit comprises a second base member, a second coil and a second variable capacitor, the second coil is coiled around the second base member to form a second loop antenna having two connecting terminals, the second capacitor is connected between the two connecting terminals.

6. The signal receiving apparatus of claim 5, wherein the second base member is a rectangular hollow and insulating sleeve, size of the second base member being larger than size of the first base member.

7. The signal receiving apparatus of claim 1, wherein the coils are aligned on a surface of the first base member.

8. The signal receiving apparatus of claim 1, wherein the first base member is a column magnetic core.

9. The signal receiving apparatus of claim 1, wherein the first base member is a battery or a battery cover of the wireless communication device.

10. A wireless communication device, comprising:

a main board comprising a signal feeding point, and

a signal receiving apparatus, the signal receiving apparatus comprising;

a first base member;

a first coil coiled around the first base member and forming a first loop antenna having a plurality of parallel and spaced coil portions and two signal output terminals, the two first signal output terminals connected to the signal feeding point; and

a tuning circuit comprising a first variable capacitor connected between the two signal output terminals.

11. The wireless communication device of claim 10, wherein the first base member is a rectangular hollow and insulating sleeve.

12. The wireless communication device of claim 10, wherein the first coil is a radio frequency line.

13. The wireless communication device of claim 10, further comprising a resonating unit, wherein the first base member, the first coil, and the tuning circuit are received in the resonating unit, the resonating unit resonates with the tuning circuit.

14. The wireless communication device of claim 13, wherein the resonating unit comprises a second base member, a second coil and a second variable capacitor, the second coil is coiled around the second base member to form a second loop antenna having two connecting terminals, the second capacitor is connected between the two connecting terminals.

15. The wireless communication device of claim 14, wherein the second base member is a rectangular hollow and insulating sleeve, size of the second base member being larger than the first base member.

16. The wireless communication device of claim 10, wherein the coils are aligned on a surface of the first base member.

17. The wireless communication device of claim 10, wherein the first base member is a column magnetic core.

18. The wireless communication device of claim 10, wherein the first base member is a battery or a battery cover of the wireless communication device.