CN201699126U - Small-volume antenna for wideband communication system - Google Patents
Small-volume antenna for wideband communication system Download PDFInfo
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- CN201699126U CN201699126U CN2009200440523U CN200920044052U CN201699126U CN 201699126 U CN201699126 U CN 201699126U CN 2009200440523 U CN2009200440523 U CN 2009200440523U CN 200920044052 U CN200920044052 U CN 200920044052U CN 201699126 U CN201699126 U CN 201699126U
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Abstract
The utility model relates to a small-volume antenna for a wideband communication system. An upper surface metal plating layer (2) and a lower surface metal plating layer (3) are respectively arranged on the two surfaces of a dielectric substrate (1). Four directors (5) are arranged on the front surface of the dielectric substrate (1). Eight wooden dipole units (13) which cross at front surfaces are arranged at the lower parts of the directors (5). Front-surface feed parallel lines (11), the front-surface metal plating layer (7) of a half-mode substrate integrated waveguide, a micro-strip transition line (8) and a 50ohm micro-strip line (9) are sequentially connected in series. The upper ends of the front-surface feed parallel lines (11) are connected with the eight wooden dipole units (13) which cross at front surfaces. The lower end of the 50ohm micro-strip line (9) is an input port (10). The utility model has the advantages that the antenna has the high-gain wideband characteristics, the structure is simple, the volume is small, the requirements of planar circuit integration are satisfied, the cost is low, the mass production is facilitated and the like. Thereby, the antenna is suitable for the wideband communication system.
Description
Technical field
The utility model is a kind of Antenna of small dimensions that is applied to wide-band communication system, and designed antenna bandwidth of operation is 22GHz-30GHz, and gaining is 10dB, comprises half module substrate integrated wave guide and Wideband Yagi aerial structure two parts.By with half module substrate integrated wave guide and Yagi antenna cascade, this guided wave structure formed feed Yagi antenna structure has formed the broad-band antenna that feed structure is simple, the work zone is wide.This Antenna Design is based on the plane electric circuit technology, and volume is small and exquisite, and it is integrated to be fit to level.
Background technology
Along with the high speed development of the communication technology, have extensive studies and application that the wide-band communication system of plurality of advantages such as low complex degree, low cost, work zone be wide obtains.And millimeter wave is important and develop later electromagnetic spectrum.Millimeter wave has obtained very big application with its wavelength weak point, bandwidth, quasi-optical property and accurate round-the-clock and enjoy favor in the military and civilian system.So application great prospect of millimeter wave broadband communication system.Space Yagi spark gap array antenna is widely used in wide-band communication system, because its volume develops into printing Yagi spark gap array antenna greatly and progressively, but the feed structure loss of the Yagi antenna of millimeter wave printing at present is big.Half module substrate integrated wave guide is that a kind of low section, low cost, work zone are wide, simplicity of design, the low planar transmission line structure of loss, and the current and phase difference of going up lower plane simultaneously is 180 °, has the balanced line characteristic.Yagi antenna and half module substrate integrated wave guide structure are combined, can form the wide-band printing Yagi antenna of low section, low cost, high-gain.
Summary of the invention
Technical problem: the purpose of this utility model is to propose a kind of Antenna of small dimensions that is applied to wide-band communication system, this antenna not only has high-gain, broadband character, and simple in structure, volume is small and exquisite, satisfy the integrated requirement of planar circuit, and have cost low, be convenient to advantage such as batch process, therefore be applicable to the application scenario of wide-band communication system.
Technical scheme: the Antenna of small dimensions that is applied to wide-band communication system of the present utility model, this antenna is respectively equipped with the upper surface coat of metal and the lower surface coat of metal on the two sides of dielectric substrate, be provided with four directors in the front of dielectric substrate, be provided with upper surface feed a period of time antenna in the bottom of director, the front metal coating of front feed parallel lines, half module substrate integrated wave guide, little band transition line, 50 ohm microstrip are connected in series in proper order, the upper end of front feed parallel lines connects surperficial feed a period of time antenna, and the lower end of 50 ohm microstrip is an input port;
Be provided with in the bottom surface of dielectric substrate respectively and intersect the bottom surface of Yagi spark gap doublet unit, front feed parallel lines symmetry with the front and intersect Yagi spark gap doublet unit, bottom surface feed parallel lines; bottom at bottom surface feed parallel lines connects half module substrate integrated wave guide and the half module substrate integrated wave guide of 50 ohm microstrip and the bottom surface coat of metal of microstrip line, and this antenna has plated-through hole connection half module substrate integrated wave guide and the bottom surface coat of metal of 50 ohm microstrip and the front metal coating of half module substrate integrated wave guide of row's equivalence for wave guide wall simultaneously.
The front metal coating of half module substrate integrated wave guide directly is connected with the front feed parallel lines of upper surface feed a period of time antenna; the bottom surface coat of metal of half module substrate integrated wave guide and 50 ohm microstrip directly is connected with the bottom surface feed parallel lines of upper surface feed a period of time antenna; form the feed structure of this antenna at last; plated-through hole is to offer through hole on dielectric substrate simultaneously, and this plated-through hole couples together with the upper surface coat of metal and the lower surface coat of metal that are overlying on the dielectric substrate bilateral.
Beneficial effect:
1. antenna has broadband character, can satisfy the requirement of wide-band microwave millimeter-wave communication system;
2. Antenna Design is simple, at millimeter wave frequency band, directly uses half module substrate integrated wave guide technology feed Yagi antenna, has realized simplification, complanation and easy of integrationization of feed structure.
3. the antenna overall volume is small and exquisite, adopts half module substrate integrated wave guide as feeder line, can make things convenient for the microwave planar circuit height integratedly, is fit to mobile compact apparatus and uses;
4. the each several part of entire antenna becomes one, and is simple in structure, all utilizes the PCB explained hereafter, and cost is low, precision is high, good reproducibility, is fit to produce in enormous quantities.
5. low-loss; Feed structure adopts the half module substrate integrated wave guide structure, and upper and lower metal backing in this structure and middle plated-through hole develop from substrate integrated waveguide technology, have kept the intrinsic low loss characteristic of substrate integration wave-guide; Simultaneously because the relative substrate integration wave-guide of the ratio of width to height of this half module substrate integrated wave guide is littler.Therefore electromagnetic wave is littler because of the loss that the imperfection of medium produces in communication process, has better low loss characteristic.
6. gain is high: antenna uses four directors, has improved gain.
Description of drawings
Fig. 1 is an end view of the present utility model,
Fig. 2 is a top view of the present utility model,
Fig. 3 is a bottom view of the present utility model,
Fig. 4 is the test reflection coefficient of antenna of the present utility model,
Fig. 5 is antenna measurement gain of the present utility model,
Fig. 6 is the antenna measurement directional diagram of the utility model at 28GHz, comprises E face main pole directional diagram, H face main pole directional diagram, H hand-deliver fork polarised direction figure and E hand-deliver fork polarised direction figure.
Have among the above figure: dielectric substrate 1, the upper surface coat of metal 2, the lower surface coat of metal 3, plated-through hole 4, director 5, the bottom surface coat of metal 6, front metal coating 7, little band gradual transition line 8,50 ohm microstrip 9, input port 10, front feed parallel lines 11, lower surface parallel lines 12, upper surface feed a period of time antenna 13, lower surface feed a period of time antenna 14.
Embodiment
The Antenna of small dimensions that is applied to wide-band communication system of the present utility model is to realize at the microwave-medium substrate by printed-board technology.The half module substrate integrated wave guide structure is done feed structure, realizes the transition of coaxial line to the Yagi spark gap array antenna.
The Antenna of small dimensions that is applied to wide-band communication system is by a dielectric substrate, and the double layer of metal coating and the row's plated-through hole that cover in the dielectric substrate upper and lower surface constitute jointly; The upper surface coat of metal includes upper strata metal covering, director, antenna a period of time peace line of 50 ohm microstrip, little band transition line, half module substrate integrated wave guide; The lower surface coat of metal include half module substrate integrated wave guide and microstrip line the bottom surface coat of metal, with upper surface antenna a period of time intersect the symmetry lower surface antenna a period of time, with the lower surface parallel lines of upper surface parallel lines symmetry; Wherein, antenna radiation unit adopts intersection a period of time of upper and lower surface; Feeder line partly adopts the half module substrate integrated wave guide form, and the parallel lines by upper and lower surface between feeder line part and the antenna radiation unit directly are connected; In order to improve gain, adopt 4 directors; For convenient test, little band transition line is used for mating half module substrate integrated wave guide and 50 ohm microstrip simultaneously.
The Antenna of small dimensions structure that is applied to wide-band communication system as shown in Figure 1-Figure 3, dielectric substrate 1 is made of jointly the upper surface coat of metal 2, the lower surface coat of metal 3 and row's plated-through hole 4.The upper surface coat of metal 2 includes four directors 5, the front metal coating 7 of half module substrate integrated wave guide, little band gradual transition line 8,50 ohm microstrip 9, upper surface feed parallel lines 11, upper surface feed a period of time antenna 13.The lower surface coat of metal 3 includes the bottom surface coat of metal 6 of half module substrate integrated wave guide and microstrip line, lower surface feed set parallel lines 12, lower surface feed a period of time antenna 14.Have row's equivalence in a side of substrate and be the plated-through hole 4 of wave guide wall.This antenna has formed the upper surface feed a period of time antenna 13 and the current balance type characteristic in lower surface a period of time 14 by half-mould substrate integrated waveguide feed.The convenience in order to test simultaneously, one section little band gradual transition line 8 coupling is connected in form between half module substrate integrated wave guide structure and 50 ohm microstrip 9, is input port 10 at an end of half module substrate integrated wave guide.The diameter of plated-through hole 4 is 0.4 millimeter, and the spacing between the adjacent metal through hole center is 0.8 millimeter; Metallic sheath is set on through-hole wall and the metallic sheath and the coat of metal that is overlying on the dielectric substrate bilateral are coupled together.
Claims (2)
1. Antenna of small dimensions that is applied to wide-band communication system, it is characterized in that this antenna is respectively equipped with the upper surface coat of metal (2) and the lower surface coat of metal (3) on the two sides of dielectric substrate (1), the upper surface coat of metal (2) positive at dielectric substrate (1) comprising: four directors (5), be provided with upper surface feed a period of time antenna (13) in the bottom of director (5), front feed parallel lines (11), the front metal coating (7) of half module substrate integrated wave guide, little band transition line (8), 50 ohm microstrip (9) order is connected in series, the upper end of front feed parallel lines (11) connects surperficial feed a period of time antenna (13), and the lower end of 50 ohm microstrip (9) is input port (10);
The lower surface coat of metal (3) in dielectric substrate (1) bottom surface comprising: respectively with upper surface feed a period of time antenna (13); lower surface feed a period of time antenna (14) of front feed parallel lines (11) symmetry; bottom surface feed parallel lines (12); the bottom surface coat of metal (6) that connects half module substrate integrated wave guide in the bottom of bottom surface feed parallel lines (12); this antenna has a row equivalence and be the plated-through hole of wave guide wall (4), the bottom surface coat of metal (6) of this plated-through hole (4) connection half module substrate integrated wave guide and the front metal coating (7) of half module substrate integrated wave guide simultaneously.
2. the Antenna of small dimensions that is applied to wide-band communication system according to claim 1; the front metal coating (7) that it is characterized in that half module substrate integrated wave guide directly is connected with front feed parallel lines (11), and the bottom surface coat of metal (6) of half module substrate integrated wave guide directly is connected with bottom surface feed parallel lines (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200440523U CN201699126U (en) | 2009-06-10 | 2009-06-10 | Small-volume antenna for wideband communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200440523U CN201699126U (en) | 2009-06-10 | 2009-06-10 | Small-volume antenna for wideband communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699126U true CN201699126U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200440523U Expired - Fee Related CN201699126U (en) | 2009-06-10 | 2009-06-10 | Small-volume antenna for wideband communication system |
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| CN (1) | CN201699126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348525A (en) * | 2013-07-31 | 2015-02-11 | 启碁科技股份有限公司 | Transmission device for near field communication device and near field communication device |
| CN114725686A (en) * | 2022-05-17 | 2022-07-08 | 安徽大学 | Log-periodic antenna based on half-mode rectangular metal waveguide excitation |
-
2009
- 2009-06-10 CN CN2009200440523U patent/CN201699126U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348525A (en) * | 2013-07-31 | 2015-02-11 | 启碁科技股份有限公司 | Transmission device for near field communication device and near field communication device |
| CN104348525B (en) * | 2013-07-31 | 2016-08-10 | 启碁科技股份有限公司 | Transmitting device and near field communication means near field communication means |
| CN114725686A (en) * | 2022-05-17 | 2022-07-08 | 安徽大学 | Log-periodic antenna based on half-mode rectangular metal waveguide excitation |
| CN114725686B (en) * | 2022-05-17 | 2024-03-12 | 安徽大学 | Logarithmic periodic antenna based on half-module rectangular metal waveguide excitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20180610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |