CN102122760A - Microstrip antenna for feed of printing L-shaped probe - Google Patents
Microstrip antenna for feed of printing L-shaped probe Download PDFInfo
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- CN102122760A CN102122760A CN2011100647361A CN201110064736A CN102122760A CN 102122760 A CN102122760 A CN 102122760A CN 2011100647361 A CN2011100647361 A CN 2011100647361A CN 201110064736 A CN201110064736 A CN 201110064736A CN 102122760 A CN102122760 A CN 102122760A
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Abstract
The invention discloses a microstrip antenna for feed of a printing an L-shaped probe. The microstrip antenna comprises a first medium substrate parallel to the horizontal plane; a microstrip paster is printed on the first medium substrate; a second medium substrate vertical to the microstrip paster is arranged between the microstrip paster and the horizontal plane; an L-shaped probe strip is printed on the second medium substrate; the L-shaped probe strip consists of two parts, namely a feed strip vertical to the horizontal plane and a coupling excitation strip parallel to the horizontal plane; and the feed end of the feed strip is connected with a microstrip line or a coaxial inner conductor below the horizontal plane. The antenna can widen the bandwidth, is implemented easily, meets the requirements of an array antenna on consistency and reliability, and is convenient to assemble/disassemble.
Description
Technical field
The invention belongs to the microwave antenna technical field, be specifically related to a kind of microstrip antenna of the L of printing probe feed, can be widely used among the antenna of systems such as radar, radio communication.
Background technology
Microstrip antenna is owing to having low section, in light weight, low-cost and be easy to advantage such as manufacturing and be subjected to special attention and obtained using widely, but it is not wide that the shortcoming of microstrip antenna is a frequency band, for the working band of broadening microstrip antenna, various new methods and technology continue to bring out.The method of widening frequency band has the thick substrate of use, reduction substrate effective dielectric constant, additional patches, fluting, tuning feed etc. multiple, and it is wherein a kind of using probe feed.The method of early stage probe feed is subjected to the influence of probe inductance, the band spread DeGrain, taked additional capacitor to make it to obtain bigger bandwidth afterwards, all obtaining obvious effects aspect the broadening microstrip antenna bandwidth of operation as water droplet shape probe, L shaped probe with the probe inductance is tuning.That but existing probe feed method exists is big such as difficulty of processing, install and fix difficulty, reliability is low, the problem of maintenanceability (detachability) difference, addresses the above problem and becomes very necessary.
Summary of the invention
Goal of the invention: the objective of the invention is at the deficiencies in the prior art, provide a kind of and can reach the broadening bandwidth, be easy to realize, satisfy the microstrip antenna that array antenna consistency and reliability requirement, attaching/detaching print the L probe feed easily again.
Technical scheme: the microstrip antenna of the L shaped probe feed of printing of the present invention, comprise first dielectric substrate parallel with ground level, described first dielectric substrate is printed with microband paste; Be provided with second dielectric substrate between microband paste and the ground level perpendicular to described microband paste; Described second dielectric substrate is provided with L shaped probe band, described L shaped probe band is made up of in coupling excitation band two parts of ground level the feed band peace row perpendicular to ground level, and the feed end of described feed band is connected with the microstrip line of ground level below or the inner wire of coaxial line.
Beneficial effect: the present invention compared with prior art, its beneficial effect is:
1. print L shaped probe because probe is printed on the dielectric-slab with PCB technology, the feed part and the coupling excitation part coplane of probe, compare the advantage that have precision height, high conformity, be easy to batch machining, cost is low with the L shaped probe that general plain conductor or metallic plate are bent to form.
2.L the shape probe is printed on the dielectric-slab, dielectric-slab has played the effect of supporting, L shaped probe can because of impact, vibration not deform, reverse, and overcome that general L shaped probe is yielding, the shortcoming of damage and displacement, makes antenna performance reliable and stable.
3. feed structure of the present invention is because the feed part and coupling excitation part coplane of probe, probe carries supporting construction, compares with other L shaped probe that has supporting construction, does not need to carry out specially L shaped probe assembling, directly use, attaching/detaching is more convenient, simpler.
In sum, antenna of the present invention can reach the broadening bandwidth, is easy to realize, satisfy array antenna consistency and reliability requirement again, and attaching/detaching is convenient.
Description of drawings
Fig. 1 is an antenna structure front view of the present invention.
Fig. 2 is an antenna structure vertical view of the present invention.
Fig. 3 surveys the deployed configuration schematic diagram for the axle of antenna of the present invention.
Fig. 4 is embodiment of the invention antenna input port S parameter testing result.
Fig. 5 is an embodiment of the invention radiation pattern test result.
Embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
Embodiment: as shown in Figure 1, 2, 3, the present invention prints the microstrip antenna of L shaped probe feed, comprises first dielectric substrate 1 parallel with ground level 3, and the inner surface of described first dielectric substrate 1 is printed with the microband paste 2 that is of a size of a * b; Distance between described microband paste 2 and the ground level 3 is H; Be provided with between microband paste 2 and the ground level 3 perpendicular to described microband paste 2 and highly be second dielectric substrate 4 of H; Adopt PCB technology to be printed with L shaped probe band 5 on described second dielectric substrate 4, described L shaped probe band 5 is made up of with coupling excitation band 52 two parts that are parallel to ground level the feed band 51 perpendicular to ground level, and the feed end of described feed band 51 is connected with the microstrip line of ground level below or the inner wire 6 of coaxial line.
When specifically being provided with, by regulating the size a and b, microband paste 2 and the width W 1 of distance H, feed band 51 and the coupling excitation band 52 of ground level 3 and the position of W2 and length L 1 and L2 and the relative microband paste 2 of L shaped probe band of microband paste 2, the frequency band that antenna is operated in need is interior and obtain the corresponding work bandwidth.
In the present embodiment, the dielectric constant of first dielectric substrate 1 is 2.65, and thickness is 1 millimeter, and the dielectric constant of second dielectric substrate 4 is 2.65, thickness is 1 millimeter, this microstrip antenna that prints L shaped probe feed works in 2.5GHz, L1=3.65mm, L2=17mm, W1=2.7mm, W2=3.7mm, second dielectric substrate 4 is of a size of long 21mm * high 12mm, and ground level 3 is 175mm * 175mm.Patch size is a=42.3mm, b=50.7mm.Through reality test, the input reflection loss S11 of feed port that draws antenna in greater than 30% relative bandwidth less than-10dB, as shown in Figure 4, corresponding standing wave ratio of input voltage VSWR＜2.Actual measurement antenna E face, H surface radiation directional diagram are as shown in Figure 5.
Certainly, present embodiment has only been enumerated a concrete example, and in the practice, the structure that those skilled in the art provide according to the present invention is done the adjustment of limited number of times, in the frequency band that antenna is operated in need and obtain the corresponding work bandwidth.
As mentioned above, although represented and explained the present invention that with reference to specific preferred embodiment it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make various variations in the form and details to it.
Claims (2)
1. the microstrip antenna of the L shaped probe feed of printing comprises first dielectric substrate (1) parallel with ground level (3), and described first dielectric substrate (1) is printed with microband paste (2); Be provided with second dielectric substrate (4) between microband paste (2) and the ground level (3) perpendicular to described microband paste (2); It is characterized in that: be printed with L shaped probe band (5) on described second dielectric substrate (4), described L shaped probe band (5) is by forming perpendicular to the feed band (51) of ground level and coupling excitation band (52) two parts of being parallel to ground level, and the feed end of described feed band (51) is connected with the microstrip line of ground level below or the inner wire (6) of coaxial line.
2. the microstrip antenna of the L shaped probe feed of printing according to claim 1 is characterized in that: described L shaped probe band (5) adopts PCB technology to be printed on described second dielectric substrate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100647361A CN102122760A (en) | 2011-03-17 | 2011-03-17 | Microstrip antenna for feed of printing L-shaped probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100647361A CN102122760A (en) | 2011-03-17 | 2011-03-17 | Microstrip antenna for feed of printing L-shaped probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102122760A true CN102122760A (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100647361A Pending CN102122760A (en) | 2011-03-17 | 2011-03-17 | Microstrip antenna for feed of printing L-shaped probe |
Country Status (1)
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| CN (1) | CN102122760A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466379A (en) * | 2014-11-28 | 2015-03-25 | 江苏中兴微通信息科技有限公司 | Broadband circularly polarized patch antenna with loaded sheet metals |
| US9484633B2 (en) | 2012-10-26 | 2016-11-01 | Nokia Technologies Oy | Loop antenna having a parasitically coupled element |
| CN107394391A (en) * | 2017-07-04 | 2017-11-24 | 北京理工大学 | A kind of broadband direction figure diversity paster antenna |
| CN108565548A (en) * | 2018-03-09 | 2018-09-21 | 上海安费诺永亿通讯电子有限公司 | A kind of millimeter wave antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005520A (en) * | 1998-03-30 | 1999-12-21 | The United States Of America As Represented By The Secretary Of The Army | Wideband planar leaky-wave microstrip antenna |
| CN2374985Y (en) * | 1999-05-17 | 2000-04-19 | 香港城市大学 | Paster antenna fed by L-shape probe |
| CN101496279A (en) * | 2006-03-31 | 2009-07-29 | 国际商业机器公司 | Apparatus and methods for constructing and packaging waveguide to planar transmission line transitions for millimeter wave applications |
| CN201956461U (en) * | 2011-03-17 | 2011-08-31 | 东南大学 | Microstrip antenna for printed L-shaped probe feed |
-
2011
- 2011-03-17 CN CN2011100647361A patent/CN102122760A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6005520A (en) * | 1998-03-30 | 1999-12-21 | The United States Of America As Represented By The Secretary Of The Army | Wideband planar leaky-wave microstrip antenna |
| CN2374985Y (en) * | 1999-05-17 | 2000-04-19 | 香港城市大学 | Paster antenna fed by L-shape probe |
| CN101496279A (en) * | 2006-03-31 | 2009-07-29 | 国际商业机器公司 | Apparatus and methods for constructing and packaging waveguide to planar transmission line transitions for millimeter wave applications |
| CN201956461U (en) * | 2011-03-17 | 2011-08-31 | 东南大学 | Microstrip antenna for printed L-shaped probe feed |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9484633B2 (en) | 2012-10-26 | 2016-11-01 | Nokia Technologies Oy | Loop antenna having a parasitically coupled element |
| CN104466379A (en) * | 2014-11-28 | 2015-03-25 | 江苏中兴微通信息科技有限公司 | Broadband circularly polarized patch antenna with loaded sheet metals |
| CN104466379B (en) * | 2014-11-28 | 2017-11-10 | 江苏中兴微通信息科技有限公司 | A kind of broadband circular polarization patch antenna for thering is sheet metal to load |
| CN107394391A (en) * | 2017-07-04 | 2017-11-24 | 北京理工大学 | A kind of broadband direction figure diversity paster antenna |
| CN107394391B (en) * | 2017-07-04 | 2020-08-04 | 北京理工大学 | Broadband directional diagram diversity patch antenna |
| CN108565548A (en) * | 2018-03-09 | 2018-09-21 | 上海安费诺永亿通讯电子有限公司 | A kind of millimeter wave antenna |
| CN108565548B (en) * | 2018-03-09 | 2020-07-24 | 上海安费诺永亿通讯电子有限公司 | Millimeter wave antenna |
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Application publication date: 20110713 |