CN208423157U

CN208423157U - A kind of antenna of small headroom full frequency band

Info

Publication number: CN208423157U
Application number: CN201821307711.3U
Authority: CN
Inventors: 管彬; 李佳玉
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2019-01-22
Anticipated expiration: 2028-08-14

Abstract

The utility model discloses a kind of antennas of small headroom full frequency band, including PCB main board, the first minor matters of metal edge frame are set on the left of the PCB main board, metal edge frame third minor matters are set above the PCB main board, the 5th minor matters of metal edge frame are set on the right side of the PCB main board, the second minor matters of metal edge frame are provided between first minor matters of metal edge frame and metal edge frame third minor matters, the 4th minor matters of metal edge frame are set between the 5th minor matters of the metal edge frame third minor matters and metal edge frame, antenna cabling is set between the 4th minor matters of the PCB main board and metal edge frame, the PCB main board is connect by the first connector and feed placement point with metal edge frame third minor matters.The utility model can make antenna headroom small, antenna area size is small, antenna covering frequence is wide, 700MHz-960MHz can be covered, 1710MHz-2690MHz, return loss is less than -6dB in this frequency range, and the efficiency of antenna low frequency 700MHz-960MHz is in addition made to be greater than 15%, average efficiency 37% in intermediate frequency 1710MHz-2170MHzpin frequency range, average efficiency 31% in high frequency 2300MHz-2690MHz frequency range.

Description

A kind of antenna of small headroom full frequency band

Technical field

The utility model belongs to mobile terminal antenna design field, and in particular to a kind of day of small headroom full frequency band Line.

Background technique

Consumer increasingly pursues beauty to cell phone appearance, and manufacturer terminal is more pursued to cater to consumer demand The design of mobile phone height screen accounting, screen represents the developing direction of the following mobile phone comprehensively, so that and the headroom of antenna for mobile phone reduces, Antenna performance sharply declines, and general mobile phone empty regions are bigger, and antenna size area is also bigger, is unable to satisfy the following mobile phone Developing direction, while 4G communication covering frequence it is wide, in order to meet mobile phone terminal the whole world communication service, antenna is as hand The terminal of machine terminal receiving and transmitting signal, in order to guarantee that communication quality, Antenna Design are faced with great challenge.

Utility model content

The purpose of this utility model is to provide a kind of antennas of small headroom full frequency band, lack for existing for antenna among the above It falls into, by the way that empty regions are arranged inside PCB main board, duplexer is set in empty regions, the first connector and second connects Device is connect, switches different accesses using duplexer, the discrete component of different value is connected on access, realizes covering different frequency, with Solve the problems mentioned above in the background art.

To achieve the above object, the utility model provides the following technical solutions: a kind of antenna of small headroom full frequency band, including PCB main board, the PCB main board left side are arranged the first minor matters of metal edge frame, metal edge frame third branch are arranged above the PCB main board The 5th minor matters of metal edge frame, first minor matters of metal edge frame and metal edge frame third minor matters are arranged in section, the PCB main board right side Between be provided with the second minor matters of metal edge frame, metal is set between the 5th minor matters of the metal edge frame third minor matters and metal edge frame The 4th minor matters of frame, are arranged antenna cabling between the 4th minor matters of the PCB main board and metal edge frame, and the PCB main board passes through the A connector and feed placement point are connect with metal edge frame third minor matters, and empty regions are arranged inside the PCB main board, described net Setting duplexer, the first connector and the second connector inside empty region.

Preferably, the first gap, the gold are opened up between first minor matters of metal edge frame and the second minor matters of metal edge frame Belong to and opens up the second gap, the metal edge frame third minor matters and metal edges between the second minor matters of frame and metal edge frame third minor matters Third gap is opened up between the 4th minor matters of frame, opens up the 4th between the 4th minor matters of metal edge frame and the 5th minor matters of metal edge frame Gap, first minor matters of metal edge frame and the 5th minor matters of metal edge frame are integral metal edge frame.

Preferably, a part on the right side of the metal edge frame third minor matters is as the first radiator of antenna, the antenna One radiator is connect by the first hard contact with feed placement point.

Preferably, the antenna cabling is connected respectively at feed placement point, the first connector and the second connector.

Preferably, the 4th detail of metal edge frame is connect by the second hard contact with the second connector.

Preferably, the duplexer is provided with a common end RC, and the common end RC is connect with the first connector.

Preferably, the PCB main board sets a reference symmetry central axis.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model can make antenna headroom small, and antenna area size is small, and antenna covering frequence is wide, can cover 700MHz-960MHz, 1710MHz-2690MHz, return loss is less than -6dB in this frequency range.

2, the utility model can make the efficiency of antenna low frequency 700MHz-960MHz be greater than 15%, intermediate frequency 1710MHz- Average efficiency 37% in 2170MHzpin frequency range, average efficiency 31% in high frequency 2300MHz-2690MHz frequency range.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the utility model antenna enlarged structure schematic diagram；

Fig. 3 is the antenna cabling figure of the utility model；

Fig. 4 is the duplexer schematic diagram of the utility model.

In figure: 1 PCB main board, 2 the first minor matters of metal edge frame, 3 the second minor matters of metal edge frame, 4 metal edge frame third minor matters, The 4th minor matters of 5 metal edge frame, the 5th minor matters of 6 metal edge frame, 7 antenna cablings, 8 first gaps, 9 second gaps, 10 third gaps, 11 the 4th gaps, 12 duplexers, 13 first connectors, 14 second connectors, 15 feed placement points, 16 first hard contacts, 17 second hard contacts, 18 the first radiators of antenna, 19 empty regions, 20 common end RC, 21 central symmetry axis.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of antenna of small headroom full frequency band, including PCB The first minor matters of metal edge frame 2 are arranged on the left of the PCB main board 1, metal edge frame third is arranged above the PCB main board 1 for mainboard 1 Minor matters 4, are arranged the 5th minor matters 6 of metal edge frame on the right side of the PCB main board 1, first minor matters of metal edge frame 2 and metal edge frame the Be provided with the second minor matters of metal edge frame 3 between three minor matters 4, the metal edge frame third minor matters 4 and the 5th minor matters 6 of metal edge frame it Between the 4th minor matters 5 of metal edge frame are set, antenna cabling 7 is set between the 4th minor matters 5 of the PCB main board 1 and metal edge frame, it is described Second radiator of the antenna cabling 7 as antenna, and antenna cabling 7, apart from 1 height 2.3mm of PCB main board, the PCB main board 1 is logical It crosses the first connector 13 and feed placement point 15 is connect with metal edge frame third minor matters 4, headroom is set inside the PCB main board 1 Duplexer 12, the first connector 13 and the second connector 14 are arranged inside the empty regions 19 for region 19.

Further, the first gap 8, institute are opened up between first minor matters of metal edge frame 2 and the second minor matters of metal edge frame 3 It states and opens up the second gap 9 between the second minor matters of metal edge frame 3 and metal edge frame third minor matters 4, the metal edge frame third minor matters 4 Third gap 10, the 4th minor matters 5 of metal edge frame and the 5th minor matters of metal edge frame are opened up between the 4th minor matters 5 of metal edge frame Open up the 4th gap 11 between 6, the 4th gap 11 is 18mm away from distance from top, between all metal edge frame minor matters Gap width is 1.5mm, and first minor matters of metal edge frame 2 are integral metal edge frame, and hand with the 5th minor matters 6 of metal edge frame Machine overall dimensions are 150mm*74mm*7.5mm.

Further, a part on 4 right side of metal edge frame third minor matters is as the first radiator of antenna 18, the day The first radiator of line 18 is connect by the first hard contact 16 with feed placement point 15.

Further, the antenna cabling 7 connects respectively at feed placement point 15, the first connector 13 and the second connector 14 It connects.

Further, the 4th detail 5 of metal edge frame is connect by the second hard contact 17 with the second connector 14, institute Stating the 4th detail 5 of metal edge frame is as antenna third radiator.

Further, the duplexer 12 is provided with a common end RC20, and the common end RC20 is connect with first Device 13 connects, and the duplexer 12 is four throw switch of SP4T hilted broadsword, switches different accesses by duplexer 12, connects on access The discrete component of different value is connect, it can be achieved that covering different frequency.

Further, the PCB main board 1 sets a reference symmetry central axis 21, the symmetrical centre axis 21 and The distance of a connector 13 is 11mm, and the symmetrical centre axis 21 is 16mm, the symmetrical centre at a distance from feed placement point The left side distance in axis 21 and third gap 10 is 27mm.

Structural principle: the Rf1 access of duplexer 12, Rf2 access, Rf3 access, Rf4 access respectively with PCB main board 1 Ground is connected by discrete component, switches different accesses by duplexer 12, the discrete component of different value is connected on access, Realize covering different frequency.

When the conducting of the Rf1 access of duplexer 12, covering frequence 700MHz-790MHz；When the Rf2 of duplexer 12 is logical When road is connected, covering frequence 790MH-894MHz, 1710MHz-1880MHz；When the Rf3 access conducting of duplexer 12, covering Frequency 880MHz-960MHz, 1850MHz-2170MHz；When the conducting of the Rf4 access of duplexer 12, covering frequence 2300MHz-2690MHz。

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of antenna of small headroom full frequency band, including PCB main board (1), it is characterised in that: setting on the left of the PCB main board (1) Metal edge frame third minor matters (4) are arranged in the first minor matters of metal edge frame (2), PCB main board (1) top, the PCB main board (1) The 5th minor matters (6) of metal edge frame are arranged in right side, between first minor matters of metal edge frame (2) and metal edge frame third minor matters (4) The second minor matters of metal edge frame (3) are provided with, are set between the 5th minor matters (6) of the metal edge frame third minor matters (4) and metal edge frame The 4th minor matters (5) of metal edge frame are set, antenna cabling (7) are set between the 4th minor matters (5) of the PCB main board (1) and metal edge frame, The PCB main board (1) is connect by the first connector (13) and feed placement point (15) with metal edge frame third minor matters (4), institute It states and empty regions (19) is set inside PCB main board (1), setting duplexer (12), first connect inside the empty regions (19) Connect device (13) and the second connector (14).

2. a kind of antenna of small headroom full frequency band according to claim 1, it is characterised in that: the metal edge frame first It is opened up the first gap (8) between section (2) and the second minor matters of metal edge frame (3), second minor matters of metal edge frame (3) and metal edges It is opened up between frame third minor matters (4) the second gap (9), the metal edge frame third minor matters (4) and the 4th minor matters (5) of metal edge frame Between open up third gap (10), open up the 4th between the 4th minor matters (5) of metal edge frame and the 5th minor matters (6) of metal edge frame Gap (11), first minor matters of metal edge frame (2) and the 5th minor matters (6) of metal edge frame are integral metal edge frame.

3. a kind of antenna of small headroom full frequency band according to claim 1, it is characterised in that: the metal edge frame third branch A part on the right side of (4) is saved as the first radiator of antenna (18), first radiator of antenna (18) is touched by the first metal Point (16) is connect with feed placement point (15).

4. a kind of antenna of small headroom full frequency band according to claim 1, it is characterised in that: the antenna cabling (7) point It is not connect with the feed placement point (15), the first connector (13) and the second connector (14).

5. a kind of antenna of small headroom full frequency band according to claim 1, it is characterised in that: the metal edge frame the 4th Section (5) is connect by the second hard contact (17) with the second connector (14).

6. a kind of antenna of small headroom full frequency band according to claim 1, it is characterised in that: the duplexer (12) sets It is equipped with a common end RC (20), the common end RC (20) connect with the first connector (13).

7. a kind of antenna of small headroom full frequency band according to claim 1, it is characterised in that: PCB main board (1) setting One reference symmetry central axis (21).