CN201515009U - Patch-type digital video broadcast ceramic antenna - Google Patents
Patch-type digital video broadcast ceramic antenna Download PDFInfo
- Publication number
- CN201515009U CN201515009U CN2009201774076U CN200920177407U CN201515009U CN 201515009 U CN201515009 U CN 201515009U CN 2009201774076 U CN2009201774076 U CN 2009201774076U CN 200920177407 U CN200920177407 U CN 200920177407U CN 201515009 U CN201515009 U CN 201515009U
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- infrabasal plate
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Abstract
The utility model discloses a patch-type digital video broadcast ceramic antenna, which includes an upper base plate and a lower base plate mounted together, wherein a conductor circuit layer is arranged between the upper base plate and the lower base plate and includes more than two sub-antennae having square-nested-square structures, each sub-antenna is a rectangle having an opening on one side, and the opening directions of the sub-antennae are the same, the sub-antenna opening ends are input terminals, the input terminals of the sub-antennae are connected through input lines and connected with an input feed terminal arranged on a side surface of the lower base plate, an open circuit terminal of the outmost sub-antenna is connected with an earthing terminal arranged on the side surface of the lower base plate, and a matching branch is arranged between the outmost sub-antenna and the input feed terminal. The utility model has the advantages of small product volume, direct welding on a PCB, easy application, high reliability, high product Q value, strong capacity of resisting disturbance and ultra-broad band.
Description
Technical field
The utility model discloses a kind of pasted sheet type antenna, particularly a kind of SMD digital video broadcasting ceramic antenna.
Background technology
Along with development of science and technology, just with the speed of the making rapid progress development that shoots ahead, mainly at the received terrestrial digital broadcasting generation, frequency of utilization is generally the radio and television frequency range to digital video broadcasting (DVB) to mechanics of communication.For adapting to the characteristics of portable terminal, some technology is improved on the technical foundation of former promising received terrestrial digital broadcasting television design, become the mobile video broadcast technology, and other technology also just design at the received terrestrial digital broadcasting television system at present, if will be applied in the mobile video broadcast business, may also to do some improvement.Paying close attention at present many in the industry is Korea S standard T-DMB, the European standard DVB-H (470MHz～862MHz) and the CMMB of the General Bureau of Radio, Film and Television (standard of 470MHz～798MHz).Antenna is as the important radio-frequency front-end of digital video broadcasting, and the quality of its performance has determined the quality of digital video broadcast system.Traditional helical antenna and whip antenna are the two kinds of antennas more widely of utilization at present, but its volume is big especially, and need be external, and this bring a lot of restrictions can for small-sized mobile multi-media terminal, and its product bandwidth is narrower, and reliability is not done and is subject to disturb.
Summary of the invention
Adopt helical antenna and whip antenna at the above-mentioned digital video broadcast system of mentioning of the prior art, bulky shortcoming, the utility model provides a kind of SMD digital video broadcasting ceramic antenna, and volume is less, is suitable for built-in, easy to use.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of paster digital video broadcasting ceramic antenna, comprise the upper substrate and the infrabasal plate that are installed together mutually, be provided with the conductor circuit layer between upper substrate and the infrabasal plate, the conductor circuit layer comprises more than two the sub antenna that is " returning " font nested structure, each sub antenna all is rectangle, and have and be provided with opening on one side, the opening of each sub antenna is towards identical, the same end of sub antenna opening part is an input, the input of each sub antenna is connected by incoming line, and be connected with the input feed end of being located at the infrabasal plate side, outermost layer sub antenna open end is connected with the earth terminal of being located at the infrabasal plate side, is provided with the coupling minor matters between outermost layer sub antenna and the input feed end.
The technical scheme that its technical problem that solves the utility model adopts further comprises:
In the middle of described sub antenna upper shed is opened in.
Described earth terminal is positioned at the sub antenna upper shed towards on one side.
Described input feed end is positioned on the infrabasal plate side of incoming line one side correspondence.
Described input feed end is positioned in the middle of the infrabasal plate side.
Described coupling minor matters termination is concordant with the input feed end.
Described upper substrate material adopts glaze.
The beneficial effects of the utility model are: the utility model is the SMD digital video broadcasting ceramic RF antenna that a kind of LTCC of employing technology is made, and small product size is little, can directly weld on pcb board, and be easy to use, the reliability height, product Q value is high, antijamming capability is strong, has ultra wide bandwidth.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the utility model decomposing state structural representation.
Fig. 2 is the utility model internal structure schematic diagram.
Fig. 3 is the utility model equivalent circuit diagram.
Among the figure, the 1-upper substrate, the 2-infrabasal plate, the 3-sub antenna, the 4-incoming line, 5-mates minor matters, and 6-imports feed end, 7-earth terminal, 8-opening.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection range.
Please referring to accompanying drawing 1, the utility model mainly comprises upper substrate 1, infrabasal plate 2 and conductor circuit layer.Infrabasal plate 2 is a medium carrier of the present utility model, and the relative dielectric constant of infrabasal plate 2 is the keys that influence antenna frequencies, and the loss factor size of material influences the quality of antenna performance, and in the present embodiment, infrabasal plate 2 adopts the ceramic material of high-k to make.The thickness of upper substrate 1 directly influences the operating frequency of antenna, and upper substrate 1 thickness is thick more, and antenna frequencies is low more.In the present embodiment, upper substrate 1 adopts advanced glaze to be printed on the infrabasal plate 2, can improve the performance of antenna product, can play the effect of protection antenna again, makes it be difficult for being worn.The conductor circuit layer is arranged between upper substrate 1 and the infrabasal plate 2, please in conjunction with referring to accompanying drawing 2, in the present embodiment, the conductor circuit layer is made of the sub antenna 3 that is " returning " font nested structure more than two, and promptly every straton antenna 3 all is rectangle, the internal layer minimum, successively enlarge to skin by internal layer, form investing mechanism layer by layer, all sub antennas 3 are positioned at same plane, and the distance between each sub antenna 3 is identical.In the present embodiment, be equipped with an opening 8 on each sub antenna 3, sub antenna 3 is not surrounded fully, opening 8 on each sub antenna 3 is opened on the limit of sub antenna 3, in the present embodiment, opening 8 is arranged on the centre position on limit, and opening 8 width on each sub antenna 3 are identical, and towards same direction.Two end points that sub antenna 3 upper sheds 8 places are relative, one end is an input, the other end is an open end, input on each sub antenna 3 is connected by incoming line 4 respectively, and be connected to input feed end 6 places, in the present embodiment, the input feed end 6 of incoming line 4 on from outermost layer sub antenna input to infrabasal plate 2 is L-shaped, the length of incoming line 4 is regulated the standing-wave ratio size, in the present embodiment, input feed end 6 is positioned at infrabasal plate 2 side centre positions, is connected with coupling minor matters 5 between outermost layer sub antenna and the incoming line 4, in the present embodiment, the termination of coupling minor matters 5 is mutually concordant with input feed end 6, coupling minor matters 5 influences standing-wave ratio size of the present utility model is that the corresponding minimum standing-wave ratio in optimum position is arranged, and promptly is optimum performance of the present utility model.The open end of outermost layer sub antenna is connected the frequency of its each resonance point of position influence the utility model with earth terminal 7 on the infrabasal plate 2.
Please referring to accompanying drawing 3, Fig. 3 is an equivalent electric circuit of the present utility model, wherein L1, L2 ... Ln is the perceptual part of antenna, and by the length and the width decision of sub antenna in the utility model 3, line length is long more, and inductance is big more, and resonance frequency is big more; Live width is more little, and inductance is big more, and resonance frequency is low more; C1, C2 ... Cn is the capacitive part of antenna, is to be made of to distance the incoming line 4 and the coupling of sub antenna 3 line capacitances 3 open ends of sub antenna in the utility model, with inductance L 1, L2 ... Ln forms antiresonant circuit; R1, R2 ... Rn is the radiation impedance of antenna; The In/Out port of input feed end 6 corresponding circuits in the antenna structure, the earth terminal in earth terminal 7 corresponding circuits in the antenna structure.
The utility model is realized the structure that it is inner special by good powder dry-pressing technology, thereby the various characteristics that is implemented in certain frequency bandwidth scope internal antenna all meets designing requirement, and it has ultra broadband, the advantages such as low return loss, low dielectric loss and high reliability. It is little that the utility model not only has size, in light weight, isotropic advantage preferably, and possesses the low-cost advantage economically of producing in enormous quantities, meet wireless communications products to gently, thin, the trend of short and small future development, become the focus of Recent study, and in manufacturing process, can obtain by continuous change structure, material and technology the antenna of different performance requirement.
Claims (7)
1. paster digital video broadcasting ceramic antenna, comprise the upper substrate and the infrabasal plate that are installed together mutually, be provided with the conductor circuit layer between upper substrate and the infrabasal plate, it is characterized in that: described conductor circuit layer comprises more than two the sub antenna that is " returning " font nested structure, each sub antenna all is rectangle, and have and be provided with opening on one side, the opening of each sub antenna is towards identical, the same end of sub antenna opening part is an input, the input of each sub antenna is connected by incoming line, and be connected with the input feed end of being located at the infrabasal plate side, outermost layer sub antenna open end is connected with the earth terminal of being located at the infrabasal plate side, is provided with the coupling minor matters between outermost layer sub antenna and the input feed end.
2. paster digital video broadcasting ceramic antenna according to claim 1 is characterized in that: in the middle of described sub antenna upper shed is opened in.
3. paster digital video broadcasting ceramic antenna according to claim 1 is characterized in that: described earth terminal is positioned at the sub antenna upper shed towards on one side.
4. paster digital video broadcasting ceramic antenna according to claim 1 is characterized in that: described input feed end is positioned on the infrabasal plate side of incoming line one side correspondence.
5. paster digital video broadcasting ceramic antenna according to claim 4 is characterized in that: described input feed end is positioned in the middle of the infrabasal plate side.
6. paster digital video broadcasting ceramic antenna according to claim 5 is characterized in that: described coupling minor matters termination is concordant with the input feed end.
7. according to any described paster digital video broadcasting ceramic antenna in the claim 1 to 6, it is characterized in that: described upper substrate material adopts glaze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201774076U CN201515009U (en) | 2009-08-20 | 2009-08-20 | Patch-type digital video broadcast ceramic antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201774076U CN201515009U (en) | 2009-08-20 | 2009-08-20 | Patch-type digital video broadcast ceramic antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201515009U true CN201515009U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201774076U Expired - Fee Related CN201515009U (en) | 2009-08-20 | 2009-08-20 | Patch-type digital video broadcast ceramic antenna |
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| CN (1) | CN201515009U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102799908A (en) * | 2011-06-24 | 2012-11-28 | 深圳光启高等理工研究院 | Reader-writer, electronic tag and radio frequency identification system |
| CN102801934A (en) * | 2011-06-30 | 2012-11-28 | 深圳光启高等理工研究院 | Vehicle-mounted China mobile multimedia broadcasting (CMMB) terminal |
| CN102801933A (en) * | 2011-06-30 | 2012-11-28 | 深圳光启高等理工研究院 | Vehicular China mobile multimedia broadcasting (CMMB) terminal |
| CN102811323A (en) * | 2011-06-30 | 2012-12-05 | 深圳光启高等理工研究院 | Handheld China mobile multimedia broadcasting (CMMB) terminal |
| CN102810177A (en) * | 2011-06-24 | 2012-12-05 | 深圳光启高等理工研究院 | SIM (subscriber identity module) card and radio frequency identification system thereof |
| CN102811324A (en) * | 2011-06-30 | 2012-12-05 | 深圳光启高等理工研究院 | Handheld China mobile multimedia broadcasting (CMMB) terminal |
| CN102890789A (en) * | 2011-06-24 | 2013-01-23 | 深圳光启高等理工研究院 | SD card (secure digital memory card) and radio frequency identification system of SD card |
| CN102904021A (en) * | 2011-04-01 | 2013-01-30 | 深圳光启高等理工研究院 | Radiofrequency antenna made of metamaterial |
| CN103187620A (en) * | 2011-05-31 | 2013-07-03 | 深圳光启高等理工研究院 | Antenna and MIMO antenna provided with antennas |
| CN106207389A (en) * | 2016-07-29 | 2016-12-07 | 芜湖辉灿电子科技有限公司 | Portable built-in mobile phone antenna |
| CN111448713A (en) * | 2017-12-11 | 2020-07-24 | 株式会社村田制作所 | Substrate with antenna and antenna module |
| CN112688051A (en) * | 2020-12-16 | 2021-04-20 | 深圳市鸿陆技术有限公司 | RFID antenna and RFID reader |
-
2009
- 2009-08-20 CN CN2009201774076U patent/CN201515009U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904021A (en) * | 2011-04-01 | 2013-01-30 | 深圳光启高等理工研究院 | Radiofrequency antenna made of metamaterial |
| CN102904021B (en) * | 2011-04-01 | 2015-05-20 | 深圳光启高等理工研究院 | Radiofrequency antenna made of metamaterial |
| CN103187620B (en) * | 2011-05-31 | 2015-07-01 | 深圳光启创新技术有限公司 | Antenna and MIMO antenna provided with antennas |
| CN103187620A (en) * | 2011-05-31 | 2013-07-03 | 深圳光启高等理工研究院 | Antenna and MIMO antenna provided with antennas |
| CN102810177A (en) * | 2011-06-24 | 2012-12-05 | 深圳光启高等理工研究院 | SIM (subscriber identity module) card and radio frequency identification system thereof |
| CN102890789A (en) * | 2011-06-24 | 2013-01-23 | 深圳光启高等理工研究院 | SD card (secure digital memory card) and radio frequency identification system of SD card |
| CN102799908A (en) * | 2011-06-24 | 2012-11-28 | 深圳光启高等理工研究院 | Reader-writer, electronic tag and radio frequency identification system |
| CN102810177B (en) * | 2011-06-24 | 2016-01-13 | 深圳光启高等理工研究院 | A kind of SIM card and radio-frequency recognition system thereof |
| CN102890789B (en) * | 2011-06-24 | 2016-05-04 | 深圳光启高等理工研究院 | A kind of SD card and radio-frequency recognition system thereof |
| CN102811324A (en) * | 2011-06-30 | 2012-12-05 | 深圳光启高等理工研究院 | Handheld China mobile multimedia broadcasting (CMMB) terminal |
| CN102811323A (en) * | 2011-06-30 | 2012-12-05 | 深圳光启高等理工研究院 | Handheld China mobile multimedia broadcasting (CMMB) terminal |
| CN102801933A (en) * | 2011-06-30 | 2012-11-28 | 深圳光启高等理工研究院 | Vehicular China mobile multimedia broadcasting (CMMB) terminal |
| CN102801934A (en) * | 2011-06-30 | 2012-11-28 | 深圳光启高等理工研究院 | Vehicle-mounted China mobile multimedia broadcasting (CMMB) terminal |
| CN106207389A (en) * | 2016-07-29 | 2016-12-07 | 芜湖辉灿电子科技有限公司 | Portable built-in mobile phone antenna |
| CN111448713A (en) * | 2017-12-11 | 2020-07-24 | 株式会社村田制作所 | Substrate with antenna and antenna module |
| CN111448713B (en) * | 2017-12-11 | 2023-09-05 | 株式会社村田制作所 | Substrate with antenna and antenna module |
| CN112688051A (en) * | 2020-12-16 | 2021-04-20 | 深圳市鸿陆技术有限公司 | RFID antenna and RFID reader |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20180820 |