CN201910486U

CN201910486U - Multiple-frequency antenna

Info

Publication number: CN201910486U
Application number: CN 201020585109
Authority: CN
Inventors: 秘诗媛; 苏嘉宏; 施凯
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2010-10-22
Filing date: 2010-10-22
Publication date: 2011-07-27
Anticipated expiration: 2020-10-22

Abstract

The utility model discloses a multiple-frequency antenna, which comprises a platelike base part, a first radiation part, a second radiation part, a coupling part and a grounded part, wherein the first radiation part and the second radiation part horizontally and rightward extend respectively from the upper part and the middle part on the right side of the base part; the extension part extends downward from the right end on one side of the base part; the coupling part horizontally and rightward extends from the right side of the extension part; the grounded part vertically and downwardly extends from the left part on one side of the base part; and a feed-in point is arranged at the right part of the extension part. The multiple-frequency antenna provided by the utility model is made of copper foil on a circuit board, so that the cost for manufacturing the antenna is lowered, and electromagnetic wave signals covering various communication systems can be received and transmitted via the structure layout of the first radiation part, the second radiation part, the coupling part and a grounded connecting part.

Description

Multifrequency antenna

Technical field

The utility model relates to a kind of antenna, relates in particular to a kind of multifrequency antenna.

Background technology

Along with development of wireless communication devices, use the wireless communication electronics product significantly to increase, comprise notebook, mobile phone, PDA and satellite navigator etc., be vital part indispensable in these electronic products wherein in order to receive electromagnetic antenna, along with the expansion of service band and compactization of electronic product, multifrequency and frivolous antenna become demand now.

Be used in GSM wave band (800～900MHz) and WWAN wave band (1710～2170MHz) antenna now, when compactization design,, has the mutual storehouse in several planes usually for cooperating the electronic product volume inside, comparatively complicated on processing procedure, thus cause manufacturing cost higher.

The utility model content

The purpose of this utility model is that providing a kind of at above-mentioned the deficiencies in the prior art reduces cost and can receive and dispatch the electromagnetic multifrequency antenna of multiple frequency range.

For achieving the above object, multifrequency antenna provided by the utility model is made by the Copper Foil on the circuit board, and this multifrequency antenna comprises a base portion, one first Department of Radiation, one second Department of Radiation, an extension, a coupling part and a grounding parts; This first Department of Radiation is the top horizontal-extending formation to the right from the right edge of base portion; This second Department of Radiation is to be parallel to each other from the middle part horizontal-extending formation to the right of the right edge of base portion and with first Department of Radiation, and this second Department of Radiation comprises the second radiation kink and the second radiation connecting portion that extends to form from the bottom, limit, left side of the second radiation kink that one second radiation extension, an end from the second radiation extension extend to form up and down left; This extension is that the right-hand member from a side of base portion extends to form downwards, and the left part of this extension is provided with a load point; This coupling part is the right edge horizontal-extending formation to the right from extension; This grounding parts is that the left part from a side of base portion vertically extends to form downwards.

As mentioned above, the utility model multifrequency antenna is to be made by the Copper Foil on the circuit board, thereby reduce the manufacturing cost of antenna, and the structure by first Department of Radiation, coupling part, second Department of Radiation and ground connection connecting portion is arranged, the electromagnetic wave signal of communication systems such as containing GSM824～GSM960 and DCS1710～WCDMA2170 be can realize receiving and dispatching, thereby portable type electronic product needs multiband, wide band electromagnetic requirement satisfied.

The described second radiation extension, first Department of Radiation and coupling part be arranged in parallel mutually.

Described grounding parts comprises a ground connection extension and the ground connection connecting portion that extends to form from the also vertical bending of the terminal extension downwards of this ground connection extension to the right, and the left end of this ground connection connecting portion is provided with an earth point.

Form a fluting between wherein said extension and the ground connection connecting portion.

Description of drawings

Fig. 1 is the three-dimensional combination figure of the utility model multifrequency antenna.

Each description of reference numerals is as follows among the figure:

Multifrequency antenna 100

Base portion 10 first Departments of Radiation 20

Second Department of Radiation, 30 second radiation extensions 31

The second radiation kink, 32 second radiation connecting portions 33

Extension 40 load points 401

Coupling part 50 grounding parts 60

Ground connection extension 61 ground connection connecting portions 62

Earth point 621 flutings 622

Embodiment

In order to describe technology contents of the present utility model, structural feature, the purpose that realizes and effect in detail, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.

See also Fig. 1, the utility model multifrequency antenna 100 can directly be made by the Copper Foil on the circuit board, it comprise one be tabular base portion 10, from the top of the right edge of base portion 10 to the right first Department of Radiation 20 that forms of horizontal-extending, from the middle part of the right edge of base portion 10 to the right the extension that extends to form downwards from the right-hand member of a side of base portion 10 of second Department of Radiation 30 that forms of horizontal-extending, one 40, from the right edge of extension 40 grounding parts 60 that vertically extends to form downwards from the left part of a side of base portion 10 of the coupling part 50 that forms of horizontal-extending and to the right.

This first Department of Radiation 20 is long strip-board shape, is used to receive and dispatch the electromagnetic wave signal of high band.

This second Department of Radiation 30 is used to receive and dispatch the electromagnetic wave signal of low-frequency range, and it comprises the second radiation kink 32 that one second radiation extension 31, an end from the second radiation extension 31 extend to form up and down and second a radiation connecting portion 33 that is the L shape that extends to form from the bottom on the limit, left side of the second radiation kink 32 left.

The lower end of the left part of this extension 40 is provided with a load point 401.

This coupling part 50 is long strip-board shape, and this second radiation extension 31, first Department of Radiation 20 and coupling part 50 be arranged in parallel mutually.

This grounding parts 60 is the L shape, comprises a ground connection extension 61 and the ground connection connecting portion 62 that extends to form from the also vertical bending of the terminal extension downwards of this ground connection extension 61 to the right, and the left end of this ground connection connecting portion 62 is provided with an earth point 621.Form a fluting 622 between this extension 40 and this ground connection connecting portion 62, this fluting 622 can make this extension 40 and ground connection connecting portion 62 play the effect of simulation shunt inductance, to regulate the input impedance of the utility model multifrequency antenna 100, the input impedance of this multifrequency antenna 100 and the characteristic impedance of feeder line are mated with minimizing return loss, thereby improve the transmitting-receiving performance and the efficient of 100 pairs of low frequency signals of the utility model multifrequency antenna.In addition, form the effect of coupling between this ground connection connecting portion 62 and this coupling part 50, make this coupling part 50 be equivalent to shunt capacitance, can play the effect of simulation shunt capacitance with ground connection connecting portion 62, the impedance that can adjust high frequency to be increasing resonance point, and then reaches the effect that increases the high frequency frequency range.

When the utility model multifrequency antenna 100 is used to communicate by letter, be equivalent to simulate shunt capacitance by coupling part 50 and ground connection connecting portion 62, shunt capacitance can produce the effect of coupling, can adjust the impedance of high frequency, and then increase the bandwidth of high frequency, make that this first Department of Radiation 20 can be that the electromagnetic wave resonance of 1710MHZ～2170MHZ is received and dispatched the electromagnetic wave signal of DCS1710～WCDMA2170 communication system with frequency.

By extension 40 simulation shunt inductance effect with ground connection connecting portion 62, can adjust the bandwidth of low-frequency band, make that second Department of Radiation 30 can be that the electromagnetic wave resonance of 824MHz～960MHz is received and dispatched the electromagnetic wave signal of GSM824～GSM960 communication system with frequency.

In sum, the utility model multifrequency antenna 100 is made by the Copper Foil on the circuit board, thereby can reduce the manufacturing cost of antenna; Structure by first Department of Radiation 10, coupling part 50, second Department of Radiation 30 and ground connection connecting portion 62 is arranged, the electromagnetic wave signal of communication systems such as GSM824～GSM960 and DCS1710～WCDMA2170 be can realize receiving and dispatching, thereby portable type electronic product needs transmitting-receiving multiband, wide band electromagnetic requirement satisfied.

Claims

1. a multifrequency antenna is characterized in that: comprise a base portion, one first Department of Radiation, one second Department of Radiation, an extension, a coupling part and a grounding parts; First Department of Radiation is the top horizontal-extending formation to the right from the right edge of base portion; Second Department of Radiation is the middle part horizontal-extending formation to the right from the right edge of base portion, and this second Department of Radiation comprises the second radiation kink and the second radiation connecting portion that extends to form from the bottom, limit, left side of the second radiation kink that one second radiation extension, an end from the second radiation extension extend to form up and down left; Extension is that the right-hand member from a side of base portion extends to form downwards, and the left part of this extension is provided with a load point; Coupling part is the right edge horizontal-extending formation to the right from extension; Grounding parts is that the left part from a side of base portion vertically extends to form downwards.

2. multifrequency antenna as claimed in claim 1 is characterized in that: the described second radiation extension, first Department of Radiation and coupling part be arranged in parallel mutually.

3. multifrequency antenna as claimed in claim 1, it is characterized in that: described grounding parts comprises a ground connection extension and the ground connection connecting portion that extends to form from the also vertical bending of the terminal extension downwards of this ground connection extension to the right, and the left end of this ground connection connecting portion is provided with an earth point.

4. multifrequency antenna as claimed in claim 3 is characterized in that: form a fluting between wherein said extension and the ground connection connecting portion.