CN214898879U

CN214898879U - Handheld terminal antenna device

Info

Publication number: CN214898879U
Application number: CN202120601639.0U
Authority: CN
Inventors: 刘华涛; 邹炎炎
Original assignee: Shenzhen Zhongtian Communication Technology Shares Co ltd
Current assignee: Shenzhen Zhongtian Communication Technology Shares Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-11-26
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses a hand-held terminal antenna device, which comprises a metal frame and a PCB arranged in the metal frame; the lower part of the metal frame comprises a left lower frame, a bottom frame and a right lower frame, a first gap and a second gap are reserved at the two ends of the bottom frame and the left lower frame and the right lower frame respectively, and the first gap and the second gap are located below the middle of the bottom of the PCB. The utility model discloses set up first gap and second gap below the middle of the bottom of PCB board, can avoid when the user holds the terminal equipment, hold two gaps, and then guarantee that the antenna performance is not influenced; meanwhile, the coverage of a 5G frequency band is realized through the coupling between the bottom frame and the right lower frame, the problem that a common antenna cannot cover a bandwidth required by 5G (3.3 GHz-5 GHz) can be solved, and the practicability is high.

Description

Handheld terminal antenna device

Technical Field

The utility model relates to the field of antenna technology, especially, relate to a handheld terminal antenna device.

Background

The terminal antenna can be installed on a mobile phone or other electronic equipment to complete the signal transceiving function. The existing arrangement of the terminal antenna has the following defects:

1) gaps among all the radiators are usually formed at the edges of four corners of a frame of the device, and when a user holds the terminal device, the gaps are easy to hold, so that the performance of the antenna is greatly reduced;

2) the frequency band of the antenna can not cover the bandwidth required by 5G (3.3 GHz-5 GHz), and the influence of the tuning device on the medium-high frequency (1.71 GHz-2.69 GHz) frequency band antenna needs to be increased, so that the manufacturing cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a handheld terminal antenna device, which arranges a first gap and a second gap below the middle of the bottom of a PCB board, thus avoiding holding the two gaps when a user holds a terminal device, and further ensuring that the performance of the antenna is not affected; meanwhile, the coverage of a 5G frequency band is realized through the coupling between the bottom frame and the right lower frame, the problem that a common antenna cannot cover a bandwidth required by 5G (3.3 GHz-5 GHz) can be solved, and the practicability is high.

In order to realize the purpose, the following technical scheme is adopted:

a handheld terminal antenna device comprises a metal frame and a PCB arranged in the metal frame; the lower part of the metal frame comprises a left lower frame, a bottom frame and a right lower frame, wherein a first gap and a second gap are respectively reserved at two ends of the bottom frame, the left lower frame and the right lower frame, and the first gap and the second gap are both positioned below the middle of the bottom of the PCB; the PCB is also provided with a first feeding point, the first feeding point is also provided with a first connecting piece, and the first connecting piece is used for being connected with the top of the lower right frame so as to use the lower right frame as a first radiating body for radiating a first frequency band; the PCB is further provided with a second connecting piece, an impedance matching network is further arranged at the position of the second connecting piece, and the second connecting piece is used for being connected with the top of the bottom frame so as to enable the bottom frame to serve as a second radiation body for radiating a second frequency band.

Furthermore, the first feeding point is located above the right lower frame, and the second connecting piece is located above one end, close to the left lower frame, of the bottom frame.

Furthermore, the first connecting piece and the second connecting piece are both made of metal materials.

Further, the distance between the second gaps is 0.5-2 mm.

Adopt above-mentioned scheme, the beneficial effects of the utility model are that:

according to the antenna, the first gap and the second gap are arranged below the middle of the bottom of the PCB, so that a user can be prevented from holding the two gaps when holding the terminal device, and the performance of the antenna is not affected; meanwhile, the coverage of a 5G frequency band is realized through the coupling between the bottom frame and the right lower frame, the problem that a common antenna cannot cover a bandwidth required by 5G (3.3 GHz-5 GHz) can be solved, and the practicability is high.

Drawings

Fig. 1 is a schematic structural view of the present invention;

wherein the figures identify the description:

1-PCB board; 2-left lower border;

3-bottom frame; 4-lower right frame;

5-a first connecting member; 6-a second connector;

11 — a first gap; 12 — second gap.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the present invention provides a handheld terminal antenna device, which includes a metal frame and a PCB board 1 disposed in the metal frame; the lower part of the metal frame comprises a left lower frame 2, a bottom frame 3 and a right lower frame 4, a first gap 11 and a second gap 12 are respectively reserved at two ends of the bottom frame 3 and the left lower frame 2 and the right lower frame 4, and the first gap 11 and the second gap 12 are both positioned below the middle of the bottom of the PCB 1; the PCB board 1 is also provided with a first feeding point, the first feeding point is also provided with a first connecting piece 5, and the first connecting piece 5 is used for being connected with the top of the right lower frame 4 so as to take the right lower frame 4 as a first radiation body for radiating a first frequency band; the PCB board 1 is further provided with a second connecting piece 6, an impedance matching network is further arranged at the position of the second connecting piece 6, and the second connecting piece 6 is used for being connected with the top of the bottom frame 3 so as to enable the bottom frame 3 to serve as a second radiation body for radiating a second frequency band.

The first feeding point is positioned above the right lower frame 4, and the second connecting piece 6 is positioned above one end of the bottom frame 3 close to the left lower frame 2; the first connecting piece 5 and the second connecting piece 6 are both made of metal materials; the distance between the second gaps 12 is 0.5-2 mm.

The utility model discloses the theory of operation:

continuing to refer to fig. 1, the antenna includes two antenna radiators, one of which is a lower right frame 4 of the metal frame and is an IFA antenna, the length of which is about 18mm, and the antenna can cover a frequency band (first frequency band) of 1.71GHz to 2.69 GHz; the other antenna radiator is a bottom frame 3 of the metal frame, the length of the other antenna radiator is about 13mm, one end of the top of the bottom frame 3 is connected (grounded) with an impedance matching network (used for optimizing bandwidth) on the PCB board 1 through a second connecting piece 6 (the first connecting piece 5 and the second connecting piece 6 can be connecting elastic pieces, screws and the like), the other end of the bottom frame is in an open circuit state (a second gap 12 is reserved between the other end and the right lower frame 4), and a second resonance is formed by coupling with the right lower frame 4 and can cover a 5G (3.3 GHz-5 GHz) frequency band (a second frequency band); in the embodiment, the first gap and the second gap are both arranged below the middle of the bottom of the PCB 1, so that a user can be prevented from holding the two gaps when holding the terminal device, and the performance of the antenna is not affected; meanwhile, the coverage of a 5G frequency band is realized through the coupling between the bottom frame 3 and the right lower frame 4, the problem that a common antenna cannot cover a bandwidth required by 5G (3.3 GHz-5 GHz) is solved, and the practicability is high.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A handheld terminal antenna device is characterized by comprising a metal frame and a PCB arranged in the metal frame; the lower part of the metal frame comprises a left lower frame, a bottom frame and a right lower frame, wherein a first gap and a second gap are respectively reserved at two ends of the bottom frame, the left lower frame and the right lower frame, and the first gap and the second gap are both positioned below the middle of the bottom of the PCB; the PCB is also provided with a first feeding point, the first feeding point is also provided with a first connecting piece, and the first connecting piece is used for being connected with the top of the lower right frame so as to use the lower right frame as a first radiating body for radiating a first frequency band; the PCB is further provided with a second connecting piece, an impedance matching network is further arranged at the position of the second connecting piece, and the second connecting piece is used for being connected with the top of the bottom frame so as to enable the bottom frame to serve as a second radiation body for radiating a second frequency band.

2. The antenna device of claim 1, wherein the first feeding point is located above the lower right frame, and the second connecting member is located above an end of the bottom frame near the lower left frame.

3. The antenna device of claim 2, wherein the first connector and the second connector are made of metal.

4. The antenna device of claim 1, wherein the second gap has a pitch of 0.5-2 mm.