CN104795629A - Microstrip antenna - Google Patents
Microstrip antenna Download PDFInfo
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- CN104795629A CN104795629A CN201510198274.0A CN201510198274A CN104795629A CN 104795629 A CN104795629 A CN 104795629A CN 201510198274 A CN201510198274 A CN 201510198274A CN 104795629 A CN104795629 A CN 104795629A
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Abstract
An embodiment of the invention discloses a microstrip antenna. The microstrip antenna comprises a printed circuit board and an antenna body. The antenna body is printed on the printed circuit board and comprises a main antenna body, a first pin and a second pin. The first pin and the second pin are arranged on the main antenna body. The first pin refers to a signal transmission pin, and the second pin refers to a grounding pin. The microstrip antenna has the advantages that the antenna body is printed on the printed circuit board, so that the size of the antenna is accurate, the printed circuit board is not easy to deform, and performance stability of the antenna is guaranteed; the height of the microstrip antenna can be adjusted correspondingly according to product shell structure and antenna working frequency, and accordingly, internal arrangement of the antenna is facilitated; during signal emission, radio-frequency signals are transmitted to the main antenna body through the first pin, and the main antenna body converts high-frequency currents into electromagnetic waves and radiates the electromagnetic waves to a surrounding environment; the main antenna body converts the electromagnetic waves in the surrounding environment into the high-frequency currents and inputs the high-frequency currents into a main system of the antenna through the first pin.
Description
Technical field
The present invention relates to Antenna Design field, particularly relate to a kind of microstrip antenna.
Background technology
Along with the progress of science and technology, electronic product, constantly towards miniaturization, in the radio frequency electric products such as family expenses radio frequency products or handheld terminal radio frequency products, has all related to the problem of built-in antenna.
Antenna is used for launching or receiving electromagnetic parts in wireless device, and generally antenna has invertibity, namely both can be used as transmitting antenna with common antenna, can be used as reception antenna again.Antenna is all generally adopt metalwork to make, easy distortion, when carrying out Metal Cutting, dimensional accuracy is not high, thus make the performance of antenna inconsistent, in the radio frequency electric product needing built-in aerial, the shell mechanism needs of radio frequency electric product carry out adjustment coupling according to parameters such as the height of intrinsic antenna, make the built-in extremely inconvenience of antenna.
Thus, how making the size of antenna more accurate, thus make antenna performance more stable, and be convenient to the built-in of antenna, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of microstrip antenna, the size of antenna can be made more accurate, thus make antenna performance more stable, and be convenient to the built-in of antenna.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of microstrip antenna, comprise: printed substrate and antenna body, described antenna body is printed on described printed substrate, described antenna body comprises antenna body, the first pin and the second pin, described first pin and the second pin are arranged on described antenna body, described first pin is Signal transmissions pin, and described second pin is ground pin.
Preferably, also comprise: the Π type circuit being arranged on described first pin, the skew that the S parameter for mating microstrip antenna occurs, the frequency of debugging microstrip antenna and impedance deviation.
Preferably, described antenna body is PIFA antenna.
Preferably, also comprise: PCBA mainboard, described PCBA mainboard is provided with emission of radio frequency signals and receives main system; Described first pin is by the micro-band cabling on PCBA mainboard and described emission of radio frequency signals and receive main system and be connected.
Preferably, described first pin and the second pin adopt wave-soldering or Reflow Soldering to be fixed on described PCBA mainboard.
Preferably, described antenna body is provided with solder mask.
Preferably, described printed substrate is single sided board, double sided board or multi-layer sheet.
Preferably, described microstrip antenna is the same carrier of single antenna, double antenna or multiple antennas.
Compared with prior art, technique scheme has the following advantages:
A kind of microstrip antenna that the embodiment of the present invention provides, antenna body printing on a printed-wiring board, namely in the mode of PCB Layout, the structure of antenna body is drawn on a printed-wiring board, do not need Metal Cutting to make antenna, make the size of antenna accurate, and printed substrate is not yielding, thus ensure that the stability of the performance of antenna; When microstrip antenna makes, according to the operating frequency required for product casing structure and antenna, can adjust accordingly the height of this microstrip antenna, be convenient to the built-in of antenna.First pin is Signal transmissions pin, and when transmitting, radiofrequency signal is input in antenna body by the first pin, and high frequency current transitions is become electromagnetic wave and is radiated in surrounding environment by antenna body; During Received signal strength, antenna body is converted to high-frequency current the electromagnetic wave in surrounding environment, and is input to via the first pin in the main system at antenna place.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the microstrip antenna that Fig. 1 provides for a kind of embodiment of the present invention;
The structural representation of the microstrip antenna that Fig. 2 provides for the another kind of embodiment of the present invention.
Embodiment
Just as described in the background section, current antenna make time due to will Metal Cutting be carried out, be difficult to the dimensional accuracy ensureing antenna, and metal antenna is easily out of shape, make the performance of antenna inconsistent, in addition, product casing needs carry out adjustment coupling according to parameters such as the height of intrinsic antenna, are not easy to the built-in of antenna.
On basis based on above-mentioned research, embodiments provide a kind of microstrip antenna, comprise: printed substrate and antenna body, described antenna body is printed on described printed substrate, described antenna body comprises antenna body, the first pin and the second pin, described first pin and the second pin are arranged on described antenna body, and described first pin is Signal transmissions pin, and described second pin is ground pin.
The scheme that the embodiment of the present invention provides, antenna body printing on a printed-wiring board, namely in the mode of PCB Layout, the structure of antenna body is drawn on a printed-wiring board, do not need Metal Cutting to make antenna, make the size of antenna accurate, and printed substrate is not yielding, thus ensure that the stability of the performance of antenna; When microstrip antenna makes, according to the operating frequency required for product casing structure and antenna, can adjust accordingly the height of this microstrip antenna, be convenient to the built-in of antenna.
In order to enable above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here to implement with multiple, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention.Therefore the present invention is not by the restriction of following public embodiment.
Please refer to Fig. 1, the structural representation of the microstrip antenna that Fig. 1 provides for a kind of embodiment of the present invention.
In a kind of embodiment of the present invention, a kind of microstrip antenna provided, comprise: printed substrate and antenna body, described antenna body is printed on described printed substrate, described antenna body comprises antenna body 11, first pin one 2 and the second pin one 3, described first pin one 2 and the second pin one 3 are arranged on described antenna body 11, and described first pin one 2 is Signal transmissions pin, and described second pin one 3 is ground pin.
In the present embodiment, on a printed-wiring board, namely microstrip antenna uses PCB to make, and that is adopts the mode of PCB Layout, the structure of antenna body is drawn on a printed-wiring board in antenna body printing.Adopt the mode of PCB Layout to make antenna, ensure that the size of antenna is accurate, and printed substrate is not yielding, thus ensure that the stability of the performance of antenna.When microstrip antenna makes, according to the operating frequency required for product casing structure and antenna, can adjust accordingly the height of this microstrip antenna, be convenient to the built-in of antenna.Wherein, the first pin one 2 is Signal transmissions pin, and when transmitting, radiofrequency signal is input in antenna body 11 by the first pin, and high frequency current transitions is become electromagnetic wave and is radiated in surrounding environment by antenna body 11, such as by electromagenetic wave radiation in air; During Received signal strength, antenna body 11 is converted to high-frequency current the electromagnetic wave in surrounding environment, and is input in the main system that microstrip antenna is used in via the first pin one 2.
In addition, compared with traditional antenna, microstrip antenna in present embodiment is owing to being printed antenna body on employing printed substrate, volume is little, quality is light, make also fairly simple, and it is with low cost, the size of antenna and the spacing of the first pin and the second pin also can adjust according to the operating frequency of antenna, in use, this microstrip antenna can be designed to an element as required, when whole electronic product carries out design layout, directly call, the R&D cycle of project can be shortened, simultaneously, also can with the two conformal design of carrier, be convenient to Integrated design together with required microwave control element and feeding network etc.
On the basis of above-mentioned execution mode, the microstrip antenna in one embodiment of the present invention, preferred antenna body is PIFA antenna.PIFA antenna is the most frequently used main flow antenna, so-called PIFA antenna and planar inverted F-antenna.
It should be noted that, present embodiment is preferred antenna body is PIFA antenna, also other antenna can be adopted as antenna body, as long as can ensure that this antenna body can print on a printed-wiring board in the mode of PCB Layout, specifically depend on the circumstances, present embodiment is not construed as limiting this.
Please refer to Fig. 2, the structural representation of the microstrip antenna that Fig. 2 provides for the another kind of embodiment of the present invention.
Microstrip antenna in one embodiment of the present invention, also comprises: PCBA mainboard 22, and described PCBA mainboard 22 is provided with emission of radio frequency signals and receives main system; Described first pin is by the micro-band cabling on PCBA mainboard and described emission of radio frequency signals and receive main system and be connected.
In the present embodiment, printing antenna body 21 is on a printed-wiring board connected with PCBA mainboard 22, and wherein, the first pin is connected with the micro-band cabling on PCBA mainboard, with emission of radio frequency signals and receive main system signal transmission each other.Wherein, so-called emission of radio frequency signals and reception main system are the main system that can transmit and receive radiofrequency signal, such as little base station, wireless router WiFi router etc.So-called PCBA mainboard to refer on SMT part again through the PCB hollow plate of DIP plug-in unit, by the wiring board that various electronic device is assembled by surface packaging technique etc.Wherein, micro-band cabling refers to the cabling on printed substrate top layer, for transmitting various signal.
On the basis of above-mentioned execution mode, the microstrip antenna in one embodiment of the present invention, preferably described first pin and the second pin adopt wave-soldering or Reflow Soldering to be fixed on described PCBA mainboard.
In the present embodiment, PIFA antenna is printed on described printed substrate, the components and parts of a plug-in unit can be made, this plug-in components and PCBA mainboard are carried out plug-in unit assembling, then adopt wave-soldering or Reflow Soldering the first pin of microstrip antenna and the second pin to be fixed on PCBA mainboard.
In the electronic products such as existing wireless router, due to cable welding, i.e. feeder welding, causes signal attenuation and coupling imbalance, can cause antenna performance severe exacerbation.In present embodiment, adopt wave-soldering or Reflow Soldering can ensure the quality of welding, reduce the decay that welding cable brings, thus solve the problem of the decay of feeder welding signal and coupling imbalance.
The microstrip antenna that one embodiment of the present invention provides, also comprises: the Π type circuit being arranged on described first pin, the skew that the S parameter for mating microstrip antenna occurs, the frequency of debugging microstrip antenna and impedance deviation.
Wherein, Π type circuit refers to Π type filter circuit.In actual applications, due to components and parts materials difference and the equal reason of layout of each PCBA, some components and parts are after antenna, and the field pattern of antenna and S parameter etc. all can change, and especially the S parameter of antenna may have trickle skew when debugging.Wherein the S parameter of antenna is an important indicator of antenna measurement, and its role is to detection signal to antenna is continuous print, and namely signal inputs from the input of antenna, and detect and have how many signals to reflect back into input again, the signal reflected is the smaller the better.When skew occurs the S parameter of antenna, can be returned by Π type filter circuit coupling, thus the object of the microstrip antenna in debugging present embodiment for frequency during different product casings and impedance deviation can be reached.
Microstrip antenna in one embodiment of the present invention, preferred described antenna body is provided with solder mask.
In the present embodiment, antenna body is provided with solder mask, to avoid antenna body sputtering the consistency that upper scolding tin affects antenna, and the first pin and the second pin can not have solder mask, its reason is, first pin and the second pin need and other parts weld, and solder mask can affect welding quality.
Microstrip antenna in one embodiment of the present invention, described printed substrate is single sided board, double sided board or multi-layer sheet.
On the basis of above-mentioned execution mode, described microstrip antenna is the same carrier of single antenna, double antenna or multiple antennas.
In the present embodiment, single sided board can be used to design microstrip antenna; Also two panels can be used to design microstrip antenna, namely use two-ply to design microstrip antenna; Multi-layer sheet can also be used to design microstrip antenna.And single sided board, doubling plate, multi-layer sheet can be designed to single antenna, double antenna with carrier or aerial array.
In sum, the microstrip antenna that embodiment of the present invention provides, on a printed-wiring board, namely microstrip antenna uses PCB to make, and that is adopts the mode of PCBLayout, the structure of antenna body is drawn on a printed-wiring board in its antenna body printing.Adopt the mode of PCBLayout to make antenna, ensure that the size of antenna is accurate, and printed substrate is not yielding, thus ensure that the stability of the performance of antenna.When microstrip antenna makes, according to the operating frequency required for product casing structure and antenna, can adjust accordingly the height of this microstrip antenna, be convenient to the built-in of antenna.Wherein, the first pin is Signal transmissions pin, and when transmitting, radiofrequency signal is input in antenna body by the first pin, and high frequency current transitions is become electromagnetic wave and is radiated in surrounding environment by antenna body, such as by electromagenetic wave radiation in air; During Received signal strength, antenna body is converted to high-frequency current the electromagnetic wave in surrounding environment, and be input in the main system that microstrip antenna is used in via the first pin, also with the two conformal design of carrier, Integrated design together with required microwave control element and feeding network etc. can be convenient to.
Compared with traditional antenna, microstrip antenna in the present invention is owing to being printed antenna body on employing printed substrate, volume is little, quality is light, makes also fairly simple, and with low cost, the size of antenna and the spacing of the first pin and the second pin also can adjust according to the operating frequency of antenna, in use, this microstrip antenna can be designed to an element as required, when whole electronic product carries out design layout, directly call, the R&D cycle of project can be shortened.
Above a kind of microstrip antenna provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (8)
1. a microstrip antenna, it is characterized in that, comprise: printed substrate and antenna body, described antenna body is printed on described printed substrate, described antenna body comprises antenna body, the first pin and the second pin, described first pin and the second pin are arranged on described antenna body, and described first pin is Signal transmissions pin, and described second pin is ground pin.
2. microstrip antenna according to claim 1, is characterized in that, also comprises:
Be arranged on the Π type circuit of described first pin, the skew that the S parameter for mating microstrip antenna occurs, the frequency of debugging microstrip antenna and impedance deviation.
3. microstrip antenna according to claim 1 and 2, is characterized in that, described antenna body is PIFA antenna.
4. microstrip antenna according to claim 3, is characterized in that, also comprises: PCBA mainboard, and described PCBA mainboard is provided with emission of radio frequency signals and receives main system;
Described first pin is by the micro-band cabling on PCBA mainboard and described emission of radio frequency signals and receive main system and be connected.
5. microstrip antenna according to claim 4, is characterized in that, described first pin and the second pin adopt wave-soldering or Reflow Soldering to be fixed on described PCBA mainboard.
6. microstrip antenna according to claim 1, is characterized in that, described antenna body is provided with solder mask.
7. microstrip antenna according to claim 1, is characterized in that, described printed substrate is single sided board, double sided board or multi-layer sheet.
8. microstrip antenna according to claim 7, is characterized in that, described microstrip antenna is the same carrier of single antenna, double antenna or multiple antennas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198274.0A CN104795629A (en) | 2015-04-23 | 2015-04-23 | Microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510198274.0A CN104795629A (en) | 2015-04-23 | 2015-04-23 | Microstrip antenna |
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| Publication Number | Publication Date |
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| CN104795629A true CN104795629A (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510198274.0A Pending CN104795629A (en) | 2015-04-23 | 2015-04-23 | Microstrip antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105789883A (en) * | 2016-04-13 | 2016-07-20 | 上海安费诺永亿通讯电子有限公司 | Metal housing hybrid antenna applied to mobile terminal |
| CN110545766A (en) * | 2017-03-07 | 2019-12-06 | 史密夫和内修有限公司 | Reduced pressure treatment systems and methods including antennas |
| US20210107228A1 (en) * | 2018-04-30 | 2021-04-15 | Hewlett-Packard Development Company, L.P. | A 3d printing computer application 3d printing using the same |
| US11369730B2 (en) | 2016-09-29 | 2022-06-28 | Smith & Nephew, Inc. | Construction and protection of components in negative pressure wound therapy systems |
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| CN1308782A (en) * | 1998-07-09 | 2001-08-15 | 艾利森电话股份有限公司 | Miniature printed spiral antenna for mobile terminals |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789883A (en) * | 2016-04-13 | 2016-07-20 | 上海安费诺永亿通讯电子有限公司 | Metal housing hybrid antenna applied to mobile terminal |
| CN105789883B (en) * | 2016-04-13 | 2019-08-23 | 上海安费诺永亿通讯电子有限公司 | A kind of metal shell hybrid antenna applied to mobile terminal |
| US11369730B2 (en) | 2016-09-29 | 2022-06-28 | Smith & Nephew, Inc. | Construction and protection of components in negative pressure wound therapy systems |
| CN110545766A (en) * | 2017-03-07 | 2019-12-06 | 史密夫和内修有限公司 | Reduced pressure treatment systems and methods including antennas |
| EP3592313B1 (en) | 2017-03-07 | 2021-07-07 | Smith & Nephew, Inc | Reduced pressure therapy systems and methods including an antenna |
| US11974903B2 (en) | 2017-03-07 | 2024-05-07 | Smith & Nephew, Inc. | Reduced pressure therapy systems and methods including an antenna |
| US20210107228A1 (en) * | 2018-04-30 | 2021-04-15 | Hewlett-Packard Development Company, L.P. | A 3d printing computer application 3d printing using the same |
| US11931964B2 (en) * | 2018-04-30 | 2024-03-19 | Hewlett-Packard Development Company, L.P. | 3D printing computer application 3D printing using the same |
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Application publication date: 20150722 |