Antenna device and mobile terminal having same

Patent metadata

Field	Value
Publication number	US-9564679-B2
Application number	US-201314648850-A
Country	US
Kind code	B2
Filing date	Aug 6, 2013
Priority date	Aug 6, 2013
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

An antenna apparatus according to one exemplary embodiment disclosed herein includes a first member and a second member limiting a slot, a feeding unit provided on one surface of a carrier covering the slot and configured to feed the slot, and a first radiator formed on the one surface of the carrier with being spaced apart from the feeding unit, and electrically connected to the first member, the first radiator configured to resonate together with the slot at a first frequency band and a second frequency band.

First claim

The invention claimed is:

1. An antenna apparatus comprising:
a first member and a second member limiting a slot;
a feeding unit provided on one surface of a carrier covering the slot and configured to feed the slot; and
a first radiator formed on the one surface of the carrier with being spaced apart from the feeding unit, and electrically connected to the first member, the first radiator configured to resonate together with the slot at a first frequency band and a second frequency band,
wherein one side of the feeding unit is inserted through the carrier to be connected to a contact portion that is formed in the second member, and the other side thereof is inserted through the carrier to be connected to the first member, and
wherein the first member comprises a dielectric having contact portions on an upper surface that is covered by the carrier and a conductive plate positioned below a lower surface of the dielectric.

2. The antenna apparatus of claim 1 , wherein one side of the slot is open.

3. The antenna apparatus of claim 2 , wherein the first radiator comprises a first part having at least part in parallel to the slot, and a second part having at least part intersecting with the slot.

4. The antenna apparatus of claim 3 , wherein the length of the slot corresponds to 0.15λ of a center frequency (λ) of the first frequency band.

5. The antenna apparatus of claim 1 , wherein one of the contact portions provided at the first member is connected to the feeding unit.

6. The antenna apparatus of claim 5 , wherein the other of the contact portions provided at the first member is connected to the first radiator.

7. The antenna apparatus of claim 1 , further comprising a second radiator branched off from the feeding unit such that the antenna apparatus additionally resonates at a third frequency band.

8. The antenna apparatus of claim 7 , wherein at least part of the second radiator is in parallel to the feeding unit.

9. A mobile terminal comprising:
a terminal body; and
a first antenna apparatus and a second antenna apparatus provided on one side of the terminal body with being isolated from each other,
wherein the first antenna apparatus comprises:
a first member and a second member limiting a slot;
a feeding unit provided on one surface of a carrier covering the slot and configured to feed the slot; and
a first radiator formed on the one surface of the carrier with being spaced apart from the feeding unit, and electrically connected to the first member, the first radiator configured to resonate together with the slot at a first frequency band and a second frequency band,

wherein one side of the feeding unit is inserted through the carrier to be connected to a contact portion that is formed on the second member, and the other side thereof is inserted through the carrier to be connected to the first member, and
wherein the first member comprises a dielectric having contact portions on an upper surface that is covered by the carrier and a conductive plate positioned below a lower surface of the dielectric.

10. The mobile terminal of claim 9 , wherein the second antenna apparatus is implemented as a planar inverted F antenna (PIFA) type antenna.

11. The mobile terminal of claim 10 , wherein the first antenna apparatus generally radiates transverse magnetic waves and the second antenna apparatus generally radiates transverse electric waves.

12. The mobile terminal of claim 9 , wherein the first and second members are conductive members provided on the terminal body, respectively.

13. The mobile terminal of claim 9 , wherein one side of the slot is open.

14. The mobile terminal of claim 13 , wherein the first radiator comprises a first part having at least part in parallel to the slot, and a second part having at least part intersecting with the slot.

15. The mobile terminal of claim 14 , wherein the length of the slot corresponds to 0.15λ of a center frequency (λ) of the first frequency band.

16. The mobile terminal of claim 9 , wherein one of the contact portions provided at the first member is connected to the feeding unit.

17. The mobile terminal of claim 16 , wherein the other of the contact portions provided at the first member is connected to the first radiator.

18. The mobile terminal of claim 9 , wherein the contact portions provided at the first member are electrically connected to the conductive plates through via holes formed through the first member.

19. The mobile terminal of claim 9 , wherein the first antenna apparatus further comprises a second radiator branched off from the feeding unit such that the first antenna apparatus additionally resonates at a third frequency band.

20. The mobile terminal of claim 19 , wherein at least part of the second radiator is in parallel to the feeding unit.

21. The mobile terminal of claim 9 , wherein the second member is a flexible printed circuit board that is mounted in the terminal body and configured to transfer signals input and output through a socket to a controller, the socket allowing for an access with an external device.

22. The mobile terminal of claim 21 , further comprising a conductive frame that is mounted in the terminal body and configured to support an inside of the terminal body,
wherein the conductive plate and the conductive frame are electrically connected to each other.

Assignees

• Lg Electronics Inc

Inventors

• Rho Sungjung
• Jung Byungwoon
• Kwon Youngbae
• Rhyu Hanphil
• Yun Changwon
• Kim Duckyun
• Choi Deuksu
• Lee Jaewoo
• Hong Sungjoon

Classifications

• H01Q5/35

  using two or more simultaneously fed points · CPC title

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title

• H01Q13/10

  Resonant slot antennas · CPC title

• H01Q5/378

  Combination of fed elements with parasitic elements · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title