Antenna and notebook utilizing the same

• US 7,233,290 B2
• Filed: 09/23/2005
• Issued: 06/19/2007
• Est. Priority Date: 07/14/2005
• Status: Expired due to Fees

• Current Assignee: Wistron NeWeb Corporation (Wistron Corporation)
• Original Assignee: Wistron NeWeb Corporation (Wistron Corporation)
• Inventors: Cheng, Wei-Li, Liu, Chih-Kai
• Primary Examiner(s): Ho; Tan
• Application Number:
  US11/233,781
• Publication Number:
  US 20070013587A1
• Time in Patent Office: 634 Days
• Field of Search: 343/700.MS, 343/702, 343/895, 343/846, 343/795
• US Class Current: 343/700.0MS
• 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 1/1698 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: H01Q 1/2266 disposed inside the computer
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H01Q 5/371 Branching current paths
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An antenna comprises a ground element, a conductive element, a signal line, a first transmitting element, a second transmitting element. The conductive element is L-shaped and connected to the ground element. The signal line is coupled to the conductive element. The first transmitting element is connected to the conductive element for transmitting a first signal. The second transmitting element is connected to the conductive element for transmitting a second signal. The first signal is a GSM900 signal and the second signal is a DCS1800 signal.

Claims

1. An antenna, comprising:

a ground element;

a conductive element, which is L-shaped and connected to the ground element, wherein the conductive element comprises a first arm and a second arm, the first arm is connected to the ground element, and the second arm is connected to the first arm and extending in a first direction;

a signal line, coupled to the conductive element;

a first transmitting element, connected to the conductive element for transmitting a first signal, wherein the first transmitting element comprises a first portion and a second portion, the first portion is connected to the second arm, the second portion is connected to the first portion and extends in a second direction, the second direction is opposite to the first direction, and the second portion comprises at least one U-shaped structure; and

a second transmitting element, connected to the conductive element for transmitting a second signal, wherein the first signal is a GSM900 signal and the second signal is a DCS1800 signal.

2. The antenna as claimed in claim 1, wherein the signal line is coupled to the second arm.

3. The antenna as claimed in claim 1, wherein the second portion comprises a plurality of U-shaped structures, and the U-shaped structures are connected to each other and aligned in the second direction.

4. The antenna as claimed in claim 1, wherein the second portion comprises at least one first U-shaped structure and at least one second U-shaped structure, the second U-shaped structure is higher than the first U-shaped structure, and the first U-shaped structure is connected to the second U-shaped structure.

5. The antenna as claimed in claim 1, wherein the second portion comprises a plurality of first U-shaped structures and a plurality of second U-shaped structures, the second U-shaped structures are higher than the first U-shaped structures, and the first U-shaped structures and the second U-shaped structures are interlaced and aligned in the second direction.

6. The antenna as claimed in claim 1, wherein a gap is formed between the second portion and the second arm, and a bandwidth of the first signal is modified by altering a width of the gap.

7. An antenna, comprising:

a ground element;

a conductive element, which is L-shaped and connected to the ground element, wherein the conductive element comprises a first arm and a second arm, the first arm is connected to the ground element, and the second arm is connected to the first arm and extending in a first direction;

a signal line, coupled to the conductive element;

a first transmitting element, connected to the conductive element for transmitting a first signal; and

a second transmitting element, connected to the conductive element for transmitting a second signal, wherein the first signal is a GSM900 signal, the second signal is a DCS1800 signal, and the second transmitting element is a fractal antenna connected to the second arm.

8. The antenna as claimed in claim 7, wherein the second transmitting element comprises a first slot extending in the first direction.

9. A notebook, comprising:

a housing; and

an antenna, disposed in the housing and comprising;

a ground element;

a conductive element, which is L-shaped and connected to the ground element, wherein the conductive element comprises a first arm and a second arm, the first arm is connected to the ground element, and the second arm is connected to the first arm and extending in a first direction;

a signal line, coupled to the conductive element;

a first transmitting element, connected to the conductive element for transmitting a first signal, wherein the first transmitting element comprises a first portion and a second portion, the first portion is connected to the second arm, the second portion is connected to the first portion and extends in a second direction, the second direction is opposite to the first direction, and the second portion comprises at least one U-shaped structure; and

a second transmitting element, connected to the conductive element for transmitting a second signal,

wherein the first signal is a GSM900 signal and the second signal is a DCS1800 signal.

10. The notebook as claimed in claim 9, wherein the signal line is coupled to the second arm.

11. The notebook as claimed in claim 9, wherein the second portion comprises a plurality of U-shaped structures, and the U-shaped structures are connected to each other and aligned in the second direction.

12. The notebook as claimed in claim 9, wherein the second portion comprises at least one first U-shaped structure and at least one second U-shaped structure, the second U-shaped structure is higher than the first U-shaped structure, and the first U-shaped structure is connected to the second U-shaped structure.

13. The notebook as claimed in claim 9, wherein the second portion comprises a plurality of first U-shaped structures and a plurality of second U-shaped structures, the second U-shaped structures are higher than the first U-shaped structures, and the first U-shaped structures and the second U-shaped structures are interlaced and aligned in the second direction.

14. The notebook as claimed in claim 9, wherein a gap is formed between the second portion and the second arm, and a bandwidth of the first signal is modified by altering a width of the gap.

15. A notebook, comprising:

a housing; and

an antenna, disposed in the housing and comprising;

a ground element;

a conductive element, which is L-shaped and connected to the ground element, wherein the conductive element comprises a first arm and a second arm, the first arm is connected to the ground element, and the second arm is connected to the first arm and extending in a first direction;

a signal line, coupled to the conductive element;

a first transmitting element, connected to the conductive element for transmitting a first signal; and

a second transmitting element, connected to the conductive element for transmitting a second signal, wherein the first signal is a GSM900 signal, the second signal is a DCS1800 signal, and the second transmitting element is a fractal antenna connected to the second arm.

16. The notebook as claimed in claim 15, wherein the second transmitting element comprises a first slot extending in the first direction.

17. An antenna, comprising:

a ground element;

a conductive element, which is L-shaped and comprises a first arm and a second arm, wherein the first arm is connected to the ground element, and the second arm is connected to the first arm and extending in a first direction;

a signal line, coupled to the conductive element;

a first fractal transmitting element, connected to the second arm and substantially extending in a second direction for transmitting a first signal, wherein the second direction is opposite to the first direction; and

a second fractal transmitting element, connected to the second arm and substantially extending in the first direction for transmitting a second signal.

18. The antenna as claimed in claim 17, wherein the first signal is a GSM900 signal and the second signal is a DCS1800 signal.