MOBILE TERMINAL

• US 20130267284A1
• Filed: 03/12/2013
• Published: 10/10/2013
• Est. Priority Date: 03/13/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: RYU, Seungwoo, LEE, Songyi, YOU, Chisang, CHOI, Jaehyun, HWANG, Kyoungsun, JEON, Byungeun, PARK, Jina, LEE, Soyeon
• Granted Patent: US 9,326,319 B2
• Time in Patent Office: Days
• US Class Current: 455/575.7
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 9/0442 with particular tuning means
• CPC Class Codes: H04B 1/0458 Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages matching circuits in general H03H
• CPC Class Codes: H04B 1/18 Input circuits, e.g. for coupling to an antenna or a transmission line coupling networks between antennas or lines and receivers independent of the nature of the receiver H03H
• CPC Class Codes: H04B 1/3888 Arrangements for carrying or protecting transceivers
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A mobile terminal includes a conductive member configured to radiate radio signals, and a blocking portion configured to mismatch impedance in a third frequency band between a first frequency and a second frequency when the conductive member multi-resonates between the first frequency and the second frequency.

Claims

1. A mobile terminal, comprising:

a conductive member configured to radiate radio signals; and

a first blocking portion configured to mismatch impedance in a third frequency band between a first frequency and a second frequency when the conductive member multi-resonates between the first frequency and the second frequency.

2. The mobile terminal of claim 1, further comprising a feeding portion configured to feed the conductive member,

wherein the first blocking portion is disposed between the feeding portion and the conductive member.

3. The mobile terminal of claim 1, wherein the first blocking portion is implemented as a lumped-element having a capacitor or an inductor.

4. The mobile terminal of claim 1, further comprising:

a substrate having a ground; and

a connection portion formed between the conductive member and the substrate, and electrically connected to the substrate.

5. The mobile terminal of claim 4, further comprising a second blocking portion formed between the connection portion and the substrate, and configured to mismatch impedance in a frequency band lower than the first frequency.

6. The mobile terminal of claim 4, further comprising a second blocking portion formed between the connection portion and the substrate, and configured to mismatch impedance in a frequency band higher than the second frequency.

7. The mobile terminal of claim 5, wherein the second blocking portion is implemented as a lumped-element having a capacitor or an inductor.

8. The mobile terminal of claim 1, wherein the conductive member is formed to have a length corresponding to λ

/8˜

λ

/12 of the first frequency.

9. The mobile terminal of claim 1, wherein the conductive member is formed such that current applied thereto flows in a single direction, from one end to another end, or from another end to one end thereof.

10. The mobile terminal of claim 1, wherein the conductive member is formed to have no branch where current applied thereto is branched off.

11. The mobile terminal of claim 1, wherein a hole is penetratingly-formed at the conductive member, and

wherein the hole is disposed close to the feeding portion.

12. A mobile terminal, comprising:

a conductive member;

a feeding portion configured to feed the conductive member; and

a blocking portion disposed between the conductive member and the feeding portion, and configured to mismatch impedance in a frequency band adjacent to one of a plurality of frequencies when the conductive member resonates at the plurality of frequencies.

13. The mobile terminal of claim 12, wherein the blocking portion is formed in plurality in number.

14. The mobile terminal of claim 13, further comprising:

a substrate having a ground; and

a connection portion formed between the conductive member and the substrate, and feed-connected to the substrate.

15. The mobile terminal of claim 14, wherein the first blocking portion is configured to electrically connect the conductive member and the connection portion with each other, and

wherein the second blocking portion is configured to electrically connect the substrate and the connection portion with each other.

16. The mobile terminal of claim 15, wherein each of the blocking portions is implemented as a lumped-element having a capacitor or an inductor.

17. The mobile terminal of claim 12, wherein the conductive member is formed such that current applied thereto flows in a single direction, from one end to another end, or from another end to one end thereof.

18. The mobile terminal of claim 12, wherein the conductive member is formed to have no branch where current applied thereto is branched off.

19. A mobile terminal, comprising:

a substrate having a ground;

a conductive member spaced from the substrate;

a connection portion disposed between the substrate and the conductive member;

a blocking portion disposed between the conductive member and the connection portion, and configured to mismatch impedance at a first frequency band; and

a matching portion formed between the substrate and the connection portion, and configured to match impedance of the conductive member at a second or third frequency adjacent to the first frequency band.

20. The mobile terminal of claim 19, further comprising another blocking portion formed between the substrate and the connection portion, and configured to mismatch impedance in a frequency band adjacent to the first frequency band.