CN2627664Y

CN2627664Y - Earthing device of high-frequency antenna

Info

Publication number: CN2627664Y
Application number: CN 03263471
Authority: CN
Inventors: 苏谦德; 余敏宏
Original assignee: E Ten Information Systems Co Ltd
Current assignee: E Ten Information Systems Co Ltd
Priority date: 2003-05-21
Filing date: 2003-05-21
Publication date: 2004-07-21
Anticipated expiration: 2013-05-21

Abstract

The utility model relates to an earthing device of high-frequency antenna. The technical proposal mainly lies in that an antenna module is assembled on the top surface of an electromagnetic cover of an electronic device, and the electromagnetic cover has such a proper size as to meet the resonance demands when the antenna module emits signals; a conductive element is arranged between the antenna module and the electromagnetic cover to electrically connect the feed-in point of the antenna module with the electromagnetic cover, thereby increasing the grounding area required by the feed-in point of the antenna module to meet the resonance demands when emitting signals, and making the transmission of electrical signal power easier.

Description

The earthing device of high frequency antenna

Technical field

The utility model relates to a kind of earthing device of high frequency antenna.

Background technology

Along with the hand-held surprising rate of growth of device for mobile communication on the market, the main element antenna of playing an important role in communication process also is subjected to the attention of manufacturer, in general wireless telecommunication system, the effect of antenna is the window that is used for transmitting and receiving electromagnetic wave energy, whether its opering characteristic of electric apparatus well is enough to have influence on the quality of communication, and can receive and dispatch the pointer of signal strength quality as radio communication product, therefore for present a lot of hand-held mobile communication device and merchants of antenna maker, none do not try every possible means the electric wave reception that improves antenna or effect of emission, use the quality that promotes product, to improve the sales volume of product.

Existing hand-held mobile communication device, the employed kind of its antenna can be divided into two kinds on concealed antenna and exposed antenna according to its position on body, wherein exposed antenna mainly is antenna part is protruded from the engine body exterior of person-to-person communication product and to be provided with, so that good transmitting-receiving signal quality to be provided, as unipole antenna (Monopole Antenna), helical antenna (Helical Antenna) etc., and concealed antenna, PATCH flat plane antenna just, then be to adopt the notion of low type (Profile) to design, can dwindle antenna volume, and in to bury hand-held device for mobile communication inner and design.Wherein for exposed antenna, because cost is comparatively cheap, and used by most hand-held mobile communication device, see also the schematic diagram that Figure 1 shows that a kind of exposed antenna modules 1 ', it mainly includes a circuit board 10 ' with radio circuit module, one high-frequency transmission lead 12 ', one keyset 14 ' and an antenna body 16 ', wherein these high-frequency transmission lead 12 ' two ends are respectively by a RF connector 122 ', 124 ' is connected on circuit board 10 ' and the keyset 14 ', the RF connector 122 ' position that wherein is positioned on the circuit board 10 ' is to be load point, and antenna body 16 ' then is to be electrically connected on the keyset 14 '; This antenna modules 1 ' mainly is to be assembled in electronic installation 20 ' inside, as shown in Figure 2, and keyset 14 ' and antenna body 16 ' be placed in the outside set antenna housing 24 ' inside of shell body, its circuit board 10 ' is gone up the signal that the radio circuit module is produced, when being transmitted to load point and desiring outwards to launch by antenna body 16 ' via circuit, for making the unlikely generation bounce-back of signal and providing the enough resonant cavities of signal that signal is launched the external world by antenna, generally around the load point of circuit board, can provide a discontinuity zone, have enough resonant cavity length to launch by antenna smoothly so that signal to be provided as ground plane.But, in the exposed antenna modules of commonly using, because load point area or discontinuity surface area are too small, and present communication frequency has arrived 2.4GHz usually, resonant cavity length when it can provide the electric wave emission is often not enough, cause the qualification rate of product aspect communication quality low excessively, formed the very big shortcoming on the production, certainly the shortcoming for the resonant cavity deficiency still can solve the problem that signal is difficult to launch by prolonging antenna body 16, yet after the bulk shape of considering the hand-held mobile communication device is attractive in appearance, its antenna housing size and inner space still have the restriction of certain big or small length, are not sufficient to solve above-mentioned problem by the length that prolongs antenna body 16.

Summary of the invention

Technical problem to be solved of the present utility model is, at the above-mentioned deficiency of prior art, provides a kind of resonance condition requirement of required resonant cavity length when meeting the signal emission, with the earthing device of the high frequency antenna that is easy to the transmission of electric wave signal power.

The earthing device of high frequency antenna of the present utility model is realized by following technical scheme.

A kind of earthing device of high frequency antenna, it is characterized in that: antenna modules is assembled in the inner set surface, the ELECTROMAGNETIC OBSCURANT side of covering of electronic installation, this ELECTROMAGNETIC OBSCURANT capping amasss resonance requirement required when antenna modules emission signal enough is provided, and between antenna modules and ELECTROMAGNETIC OBSCURANT lid, be provided with a conducting element, the load point and the ELECTROMAGNETIC OBSCURANT lid of antenna modules are an electric connection, and reach when covering ELECTROMAGNETIC OBSCURANT as antenna modules emission signal, use the area that increases the required earth terminal of load point.

The earthing device of described high frequency antenna is characterized in that: this antenna modules includes first circuit board, a high-frequency transmission lead, a keyset and the antenna body etc. with radio circuit module and constitutes.

The earthing device of described high frequency antenna is characterized in that: this load point is to be positioned at the high-frequency transmission lead to be connected on the RF connector set on the first circuit board.

The earthing device of described high frequency antenna is characterized in that: this conducting element is made of a conductive pad.

The earthing device of described high frequency antenna is characterized in that: this conducting element is directly load point and ELECTROMAGNETIC OBSCURANT lid to be electrically connected at one by a lead.

The earthing device of described high frequency antenna is characterized in that: the operating frequency of this antenna modules is 2.4GHz.

The utility model mainly is to establish with a conducting element on the load point of the inner set high frequency antenna module of electronic installation, make this conducting element and have the ELECTROMAGNETIC OBSCURANT lid of enough area sizes or directly and the ground end on the circuit board reach electric connection, use the requirement of the resonance condition of required resonant cavity length when meeting the signal emission, to be easy to the transmission of electric wave signal power.

Advantage of the present utility model is:

1, is difficult to overtime again when the antenna body length, by the mode that changes high frequency antenna module earth terminal area, to improve the problem of signal transmission.

2, the ELECTROMAGNETIC OBSCURANT lid that has certain area size on conducting element and circuit board at load point is reached electric connection, to reach the purpose that strengthens the earth terminal area.

For further understanding device of the present invention, feature and purpose thereof, the attached now detailed description with icon and preferred embodiment is as the back:

Description of drawings

Fig. 1 is a three-dimensional appearance schematic diagram of commonly using antenna modules.

Fig. 2 commonly uses antenna modules to be assembled in the schematic diagram of hand-held mobile communication device when inner.

Fig. 3 is a schematic perspective view of the present utility model.

Fig. 4 is a part end view of the present utility model.

Embodiment

Please consult Fig. 3 and shown in Figure 4 respectively, the utility model mainly is to be applied in frequency of operation on the high frequency antenna module 1 of 2.4GHz, but and for the antenna modules of other frequency of operation also one size fits all certainly, this antenna modules 1 includes a first circuit board 10 with radio circuit module, one high-frequency transmission lead 12, one keyset 14 and an antenna body 16 etc., wherein this first circuit board 10 mainly is to be electrically connected on the second circuit board 22 set on the hand-held device for

mobile communication

20,16 of antenna bodies are to be electrically connected at keyset 14, and be fixed in antenna housing 24 inside of hand-held mobile communication device 20 with keyset 14, and first circuit board 10 is to be connected with high-frequency transmission lead 12 with 14 of keysets, and respectively be provided with a RF connector 122 at high-frequency transmission lead 12 two ends respectively, 124 fix, and the utility model mainly to be first circuit board 10 with antenna modules 1 be arranged at an ELECTROMAGNETIC OBSCURANT with suitably big small size covers place, 26 surfaces, this ELECTROMAGNETIC OBSCURANT lid 26 with metallic conductivity mainly is to be covered on second circuit board 22 surfaces, setly on the second circuit board 22 have the high-frequency noise of dispersing or an electromagnetic electronic component in order to cover, and the earth polar on this ELECTROMAGNETIC OBSCURANT lid 26 and the second circuit board 22 is to be electrically connected, 26 on set RF connector 122 and ELECTROMAGNETIC OBSCURANT lid is provided with a conducting element 30 in addition on first circuit board 10 in addition, use and make RF connector 122 (being the load point place) and ELECTROMAGNETIC OBSCURANT lid 26 be one to electrically conduct, so can make original earth terminal area that has in RF connector 122 places, because of the electrical conduction of conducting element 30 is one, and make ELECTROMAGNETIC OBSCURANT lid 26 also can become the part of earth terminal area, the deficiency of required earth terminal area when carrying out the signal emission in order to remedy antenna modules 1, use the length that strengthens its resonant cavity, wherein this conducting element 30 is constituted with the conductive pad with conductivity, certainly can also plain conductor directly as electrical binding, also can reach identical means.

By knowing understanding among the embodiment of the present utility model, for solving antenna modules 1 causes signal power transmission deficiency because of the deficiency of earth terminal area shortcoming, the utility model mainly is when antenna modules 1 is assembled in hand-held mobile communication device 20 inside, the use that set ELECTROMAGNETIC OBSCURANT lid 26 substitutes as earth terminal on utilization hand-held mobile communication device 20 internal circuit boards, use and reach the purpose that strengthens the earth terminal area, so that meet the requirement of antenna signal required resonance condition of when emission, be able to launch the external world smoothly in the hope of the signal that makes antenna modules 1, and the means that it mainly solves are that promptly first circuit board 10 with antenna modules 1 is relatively arranged on the ELECTROMAGNETIC OBSCURANT that hand-held mobile communication device 20 inside are had and covers place, 26 surfaces, certainly this ELECTROMAGNETIC OBSCURANT lid 26 need have the area of suitable size, to provide antenna modules 1 can reach condition and the purpose that signal is launched, as enough resonant cavity length etc., and set

RF connector

122 and 26 on ELECTROMAGNETIC OBSCURANT lid and being provided with had the conducting element 30 of conductive effect on first circuit board 10, so the load point of antenna modules 1 directly can be connected one by electric connection with ELECTROMAGNETIC OBSCURANT lid 26, make ELECTROMAGNETIC OBSCURANT lid 26 can be used as the function of the earth terminal that antenna modules 1 is provided simultaneously, make resonant cavity length required when meeting the emission of antenna signal, to promote and to improve the quality of hand-held mobile communication device 20 communications.

The above, it only is a preferred embodiment of the present utility model, be not to be used for limiting the scope that the utility model is implemented, such as the equalization of doing according to the described shape of the utility model claim, structure, feature and spirit changes and modifies, and all should be included in the claim of the present utility model.

Claims

1, a kind of earthing device of high frequency antenna, comprise antenna modules, and this antenna modules is provided with a load point, it is characterized in that: this antenna modules is assembled in the inner set surface, the ELECTROMAGNETIC OBSCURANT side of covering of electronic installation, required resonance requirement when the area of this ELECTROMAGNETIC OBSCURANT lid enough provides antenna modules emission signal, and between antenna modules and ELECTROMAGNETIC OBSCURANT lid, be provided with a conducting element, the load point and the ELECTROMAGNETIC OBSCURANT lid of antenna modules are an electric connection, and reach when covering ELECTROMAGNETIC OBSCURANT as antenna modules emission signal, use the area that increases the required earth terminal of load point.

2, the earthing device of high frequency antenna according to claim 1 is characterized in that: this antenna modules includes first circuit board, a high-frequency transmission lead, a keyset and the antenna body etc. with radio circuit module and constitutes.

3, the earthing device of high frequency antenna according to claim 2 is characterized in that: this load point is to be positioned at the high-frequency transmission lead to be connected on the RF connector set on the first circuit board.

4, the earthing device of high frequency antenna according to claim 1 is characterized in that: this conducting element is made of a conductive pad.

5, the earthing device of high frequency antenna according to claim 1 is characterized in that: this conducting element is directly load point and ELECTROMAGNETIC OBSCURANT lid to be electrically connected at one by a lead.

6, the earthing device of high frequency antenna according to claim 1 is characterized in that: the operating frequency of this antenna modules is 2.4GHz.