CN205828661U

CN205828661U - A kind of multiband aerial structure of Based PC B

Info

Publication number: CN205828661U
Application number: CN201620837192.6U
Authority: CN
Inventors: 文海波
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2016-08-03
Filing date: 2016-08-03
Publication date: 2016-12-21
Anticipated expiration: 2026-08-03

Abstract

The utility model discloses the multiband aerial structure of a kind of Based PC B, it includes double-deck PCB substrate, the positive side of described double-deck PCB substrate is printed with the first minor matters, first branch and the second branch, described first branch is vertical at one end and the two electric connection of the first minor matters, described second branch is located in the recess that the first minor matters and the first branch are formed, it is provided with gap between described second branch and the first minor matters and the first branch, described first branch is provided with current feed department away from one end of the first minor matters, the dorsal part of described double-deck PCB substrate is printed with the second minor matters, described second minor matters are corresponding with the first minor matters, via is offered in described double-deck PCB substrate, by described via, the first minor matters are electrically connected with the second minor matters.This utility model simple in construction, be easily achieved, save space, with low cost, disclosure satisfy that Clearance requirement.

Description

A kind of multiband aerial structure of Based PC B

Technical field

This utility model relates to antenna, particularly relates to the multiband aerial structure of a kind of Based PC B.

Background technology

In prior art, the Technical comparing that common PIFA antenna realizes multiband covering is single, wants as multifrequency antenna Ask antenna height 6-8mm, antenna area 500-800mm², sky Wiring technology generally realizes by technique materials such as FPC, shell fragment, LDS, Antenna height requires to limit the thickness of mobile terminal, is unfavorable for the requirement of miniaturization, and antenna cost is high.PCB is many at present Frequently the research of antenna is the most few, and under same obstruction clearance criteria, PCB antenna is more much narrower than ordinary antennas bandwidth, causes PCB antenna The performance of ordinary antennas to be reached then requires that clearance zone is very big, is unfavorable for the layout of Mobile terminal main board.As can be seen here, existing skill Art lacks a kind of saves space, disclosure satisfy that the multiple frequency antenna structure of Clearance requirement.

Utility model content

The technical problems to be solved in the utility model is, for the deficiencies in the prior art, it is provided that a kind of simple in construction, easily In realize, save space, with low cost, disclosure satisfy that the multiband aerial structure of Clearance requirement and Based PC B.

For solving above-mentioned technical problem, this utility model adopts the following technical scheme that.

The multiband aerial structure of a kind of Based PC B, it includes double-deck PCB substrate, the positive side of described double-deck PCB substrate Being printed with the first minor matters, the first branch and the second branch, described first branch is vertical at one end and the two electricity of the first minor matters Property connect, described second branch is located in the recess that the first minor matters and the first branch are formed, described second branch and first Being provided with gap between joint and the first branch, described first branch is provided with current feed department, described double-deck PCB away from one end of the first minor matters The dorsal part of substrate is printed with the second minor matters, and described second minor matters are corresponding with the first minor matters, and described double-deck PCB substrate offers First minor matters are electrically connected with the second minor matters by via by described via.

Preferably, described via is located at the second minor matters one end away from the first branch.

Preferably, described first minor matters and the second minor matters are all in bar shaped, and described first minor matters are integrated into the first branch Type and the two be inverted "L" shaped arrange.

Preferably, also including the first inductance and the second inductance, described first inductance and the second inductance are connected to Between the ground wire of one minor matters and double-deck PCB substrate.

Preferably, the size of described double-deck PCB substrate is 127mm*70mm*1mm.

Preferably, described first minor matters and the second minor matters are all located at the edge of double-deck PCB substrate.

In the multiband aerial structure of Based PC B disclosed in this utility model, the first minor matters, the first branch and the second minor matters Constituting the main part of antenna, in order to produce low-frequency resonant and first high-frequency resonant, the second branch is located at the first minor matters and the In the recess that one branch is formed and as parasitic element, in order to produce second high-frequency resonant, by adjusting this second branch Shape, size, the impedance of high-frequency band can be adjusted further, and then meet multiband requirement.Meanwhile, this utility model uses Double-deck PCB substrate is divided into the both sides of double-deck PCB substrate as base material, the first minor matters and the second minor matters so that the first minor matters With second intercepted by insulant between minor matters, not only meet Clearance requirement, also without structures such as antenna holders, significantly save Saved the space shared by antenna, additionally, this utility model simple in construction, be easily achieved, with low cost, be suitably applied small-sized Change in electronic product.

Accompanying drawing explanation

Fig. 1 is the overall structure figure of this utility model multiband aerial structure.

Fig. 2 is the positive side structure figure of this utility model multiband aerial structure.

Fig. 3 is the backside configuration figure of this utility model multiband aerial structure.

Fig. 4 is multiband aerial structure return loss plot comparison diagram before and after removing inductance.

Fig. 5 is multiband aerial structure return loss plot comparison diagram before and after increasing by the second branch length.

Fig. 6 is multiband aerial structure return loss plot comparison diagram before and after removing the second minor matters.

Fig. 7 is multiband aerial structure return loss plot comparison diagram before and after adjusting gap width.

Detailed description of the invention

With embodiment, this utility model is described in more detail below in conjunction with the accompanying drawings.

The utility model discloses the multiband aerial structure of a kind of Based PC B, refer to Fig. 1 to Fig. 3, include bilayer PCB substrate 8, the positive side of described double-deck PCB substrate 8 is printed with the first minor matters the 41, first branch 2 and the second branch 3, and described first Branch 2 is vertical at one end and the two electric connection of the first minor matters 41, and described second branch 3 is located at the first minor matters 41 and first In the recess that branch 2 is formed, between described second branch 3 and the first minor matters 41 and the first branch 2, it is provided with gap 30, described One branch 2 is provided with current feed department 1 away from one end of the first minor matters 41, and the dorsal part of described double-deck PCB substrate 8 is printed with the second minor matters 42, described second minor matters 42 are corresponding with the first minor matters 41, and described double-deck PCB substrate 8 offers via 7, by described mistake Hole 7 and the first minor matters 41 are electrically connected with the second minor matters 42.

Wherein, Fig. 1 is in order to clearly show that the relation between the first minor matters 41 and the second minor matters 42, especially that the two is shared Double-deck PCB substrate 8 part hide, in order to reference.

In the multiband aerial structure of above-mentioned Based PC B, first minor matters the 41, first branch 2 and the second minor matters 42 constitute sky The main part of line, in order to produce low-frequency resonant 880MHz-960MHz and first high-frequency resonant 1710MHz-2170MHz, the In the recess that two branches 3 are located at the first minor matters 41 and the first branch 2 is formed and as parasitic element, high in order to produce second Frequently resonance 2496MHz-2690MHz, by adjusting the shape of this second branch 3, size, can adjust the resistance of high-frequency band further Anti-, and then meet multiband requirement.Meanwhile, this utility model have employed double-deck PCB substrate 8 as base material, the first minor matters 41 He Second minor matters 42 are divided into the both sides of double-deck PCB substrate 8 so that pass through insulant between the first minor matters 41 and the second minor matters 42 Intercept, not only meet Clearance requirement, also without structures such as antenna holders, be greatly saved the space shared by antenna, additionally, This utility model simple in construction, be easily achieved, with low cost, be suitably applied in miniaturized electronic product.

In the present embodiment, utilize the via 7 of metal material by the first minor matters 41 of double-deck PCB substrate 8 both sides and second Joint 42 connection, described via 7 is located at the second minor matters 42 one end away from the first branch 2.

Further, described first minor matters 41 and the second minor matters 42 all in bar shaped, described first minor matters 41 and the first branch 2 It is formed in one and the two is that inverted "L" shaped is arranged.

On this basis, above-mentioned multiband aerial also includes the first inductance 5 and the second inductance 6, described first inductance 5 He Second inductance 6 is connected between the ground wire of the first minor matters 41 and double-deck PCB substrate 8.

As a kind of optimal way, the size of described double-deck PCB substrate 8 is 127mm*70mm*1mm.Described first minor matters 41 and second minor matters 42 be all located at the edge of double-deck PCB substrate 8.

The multiband aerial structure of Based PC B disclosed in this utility model, the return loss test knot under different conditions Fruit refer to Fig. 4 to Fig. 7, it can be seen that the present embodiment has clear superiority for comparing similar structures antenna, at limited ring The band width that can realize more than multifrequency under border covers, additionally, antenna directly designs on pcb board, it is not necessary to antenna holder etc. support, no Relate to antenna technological problems.Additionally, this multiband aerial volume is little, low cost, low to mobile terminal internal space requirements, can be wide General for ultrathin mobile terminal.

The above is this utility model preferred embodiment, is not limited to this utility model, all in this practicality Amendment, equivalent or the improvement etc. made in novel technical scope, should be included in the model that this utility model is protected In enclosing.

Claims

1. the multiband aerial structure of a Based PC B, it is characterised in that include double-deck PCB substrate, described double-deck PCB base The positive side of plate is printed with the first minor matters, the first branch and the second branch, and described first branch is vertical at one end of the first minor matters And the two is electrically connected with, described second branch is located in the recess that the first minor matters and the first branch are formed, described second branch And being provided with gap between the first minor matters and the first branch, described first branch is provided with current feed department away from one end of the first minor matters, institute The dorsal part stating double-deck PCB substrate is printed with the second minor matters, and described second minor matters are corresponding with the first minor matters, described double-deck PCB base Offer via on plate, by described via, the first minor matters are electrically connected with the second minor matters.

2. the multiband aerial structure of Based PC B as claimed in claim 1, it is characterised in that described via is located at second Save the one end away from the first branch.

3. the multiband aerial structure of Based PC B as claimed in claim 1, it is characterised in that described first minor matters and second Minor matters are all in bar shaped, and described first minor matters and the first branch are formed in one and the two is that inverted "L" shaped is arranged.

4. the multiband aerial structure of Based PC B as claimed in claim 1, it is characterised in that also include the first inductance and Second inductance, described first inductance and the second inductance are connected between the ground wire of the first minor matters and double-deck PCB substrate.

5. the multiband aerial structure of Based PC B as claimed in claim 1, it is characterised in that the chi of described double-deck PCB substrate Very little for 127mm*70mm*1mm.

6. the multiband aerial structure of Based PC B as claimed in claim 1, it is characterised in that described first minor matters and second Minor matters are all located at the edge of double-deck PCB substrate.