Antenna device and electronic device using the same

TW202638509AActive Publication Date: 2026-09-16GETAC TECH CORP
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Patent Information

Application Number
TW114109421
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-09-16
Estimated Expiration
2045-03-12

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  • Figure TWG2TA001075936_003
    Figure TWG2TA001075936_003
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Abstract

The antenna device includes a substrate, a first helical antenna, a second helical antenna and a first supporting member. A first end of the first helical antenna is coupled to the substrate and electrically connected to a ground end. A first end of the second helical antenna is coupled to the substrate and electrically connected to a signal feeding end. The first supporting member is coupled to the substrate. A second supporting member is arranged at the center of the first supporting member. The first helical antenna is arranged around an outer surface of the first supporting member, and the second helical antenna is arranged between the inner surface of the first supporting member and the second supporting member.
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Claims

1. An antenna device, comprising: One substrate; A first helical antenna, a first end of which is coupled to the substrate and electrically connected to a ground terminal; a second helical antenna, a first end of which is coupled to the substrate and electrically connected to a signal feed terminal; A first support member is coupled to the substrate, and a second support member is disposed at the center. The first support member and the second support member are spaced apart to form an accommodating space. The first helical antenna is disposed around an outer surface of the first support member, and the second helical antenna is disposed in the accommodating space between an inner surface of the first support member and the second support member.

2. The antenna device as claimed in claim 1, wherein the outer surface of the first support member is further provided with a spiral groove, and the first spiral antenna is disposed in the spiral groove.

3. The antenna device as claimed in claim 1, wherein the substrate has a first through hole and a second through hole, the first end of the first helical antenna is fixed to the first through hole, and the first end of the second helical antenna is fixed to the second through hole.

4. The antenna device as claimed in claim 3, wherein the substrate has a signal input element, and the first end of the second helical antenna is coupled to the signal feed end of the signal input element.

5. The antenna device as claimed in claim 3, wherein the substrate has a ground layer serving as the ground terminal, and the first end of the first helical antenna is coupled to the ground layer.

6. The antenna device as claimed in claim 1, wherein the first support member has a snap-fit ​​element.

7. The antenna device as claimed in claim 6, wherein the substrate has a third through hole, and the latching member is used to pass through and engage the third through hole.

8. The antenna device as claimed in claim 1, wherein the height of the first support member is 3.65 mm.

9. The antenna device as claimed in claim 1, wherein the diameter of the first helical antenna is 11.5 mm.

10. The antenna device as claimed in claim 1, wherein the diameter of the second helical antenna is 8.5 mm.

11. The antenna device as claimed in claim 1 further includes a switch disposed on the substrate, wherein the first end of the first helical antenna is coupled to the switch, and the first end of the second helical antenna is coupled to the switch.

12. The antenna device as claimed in claim 11, wherein the switch is a dual-axis dual-switch.

13. The antenna device as claimed in claim 11, wherein the switch switches, according to a control signal, either the first helical antenna is electrically connected to the ground terminal and the second helical antenna is electrically connected to the signal feed terminal, or the first helical antenna is electrically connected to the signal feed terminal and the second helical antenna is electrically connected to the ground terminal.

14. An electronic device comprising: The antenna device as described in claim 1; A switch is disposed on the substrate. The first end of the first helical antenna is coupled to the switch, and the first end of the second helical antenna is coupled to the switch. The electronic device is operable in a first mode and a second mode. When the electronic device is operated in the first mode, the electronic device generates a control signal to control the switch to switch the first helical antenna electrically connected to the ground terminal and the second helical antenna electrically connected to the signal feed terminal. When the electronic device is operated in the second mode, the electronic device generates the control signal to control the switch to switch the first helical antenna electrically connected to the signal feed terminal and the second helical antenna electrically connected to the ground terminal.

15. The electronic device as claimed in claim 14, wherein the switch is a dual-axis dual-switch.