CN105870617A - Ultra-small 433 MHz built-in FPC antenna - Google Patents
Ultra-small 433 MHz built-in FPC antenna Download PDFInfo
- Publication number
- CN105870617A CN105870617A CN201610295045.5A CN201610295045A CN105870617A CN 105870617 A CN105870617 A CN 105870617A CN 201610295045 A CN201610295045 A CN 201610295045A CN 105870617 A CN105870617 A CN 105870617A
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- China
- Prior art keywords
- turn part
- revers turn
- built
- 433mhz
- straight line
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses an ultra-small 433 MHz built-in FPC antenna. The ultra-small 433 MHz built-in FPC antenna is composed of a dielectric substrate and a radiating element. The dielectric substrate is a rounded rectangle with a round hollowed part, and a button cell can be stored on the round hollowed part to supply power to the antenna; the radiating element is of a copper-coated structure located on the dielectric substrate and is divided through a grooved wire, so that the frequency of the ultra-small 433 MHz built-in FPC antenna is 433 MHz, return losses are smaller than 38 dB, and the bandwidth is 22 MHz.
Description
Technical field
The present invention relates to antenna technical field, particularly relate to the built-in FPC antenna of microminiature 433MHz.
Background technology
Wireless communication system is widely used to every field in recent years, and user can not be utilized wireless communication system to carry out the transmission of information and information by distance limit.And antenna is one of element important in wireless communication field, currently in order to the size reduction of response electronic product and the diversity of outward appearance, small built-in antenna, because size is little, be easy to the feature integrated with circuitry, is extensively incorporated in various electronic installation.
Antenna, as the bridge of radio communication, is the key realizing radio communication.Along with wireless communication technology and the development of electronic technology, the wireless electronic product in daily life becomes more and more less, more and more thinner, and the gentliest, and function becomes from strength to strength.Therefore researching and developing a small-sized 433MHzFPC antenna, the research and development needs adapting to antenna miniaturization are the problems that our needs solve.
Summary of the invention
Embodiments provide the built-in FPC antenna of microminiature 433MHz, it is possible to reach that simple in construction, low cost, clawback loss be little, requirement that gain is high.
The implementation of the present invention is as follows: the built-in FPC antenna of microminiature 433MHz is made up of medium substrate and radiating element, medium substrate is the round rectangle containing a circular hollow out, it is that antenna is powered that its circular hollow part can deposit button cell, radiating element be positioned on medium substrate cover steel structure, by the line of rabbet joint, radiating element is split, the frequency making the built-in FPC antenna of described microminiature 433MHz is 433MHz, and return loss is less than-38dB.
Wherein, the line of rabbet joint includes the first straight line revers turn part, the second camber line revers turn part, the 3rd straight line revers turn part, the 4th straight line revers turn part, the 5th camber line revers turn part, the 6th straight line revers turn part, the 7th camber line revers turn part, the 8th straight line revers turn part, the 9th camber line revers turn part, the tenth straight line revers turn part and the 11st straight line revers turn part being sequentially connected with, and the 11st straight line revers turn part can feed section be connected with radiating element.
Wherein, line of rabbet joint width is 0.4mm, the a length of 5mm of the first straight line revers turn part, the a length of 7.3mm of the second camber line revers turn part, radian is 90 °, the a length of 12.6mm of the 3rd straight line revers turn part, the a length of 3.7mm of the 4th straight line revers turn part, the a length of 24mm of the 5th camber line revers turn part, radian is 120 °, the a length of 14mm of the 6th straight line revers turn part, the a length of 9.5mm of the 7th camber line revers turn part, radian is 90 °, the a length of 14mm of the 8th straight line revers turn part, the a length of 9.5mm of the 9th camber line revers turn part, radian is 90 °, the tenth a length of 8.5mm of straight line revers turn part, and the 11st a length of 6mm of straight line revers turn part.
Wherein, the radius of circular hollow out is 10mm, and right side and the downside of distance round rectangle are respectively 1mm and 1mm.
Wherein, the built-in FPC antenna of microminiature 433MHz be shaped as round rectangle, a length of 28mm of the built-in FPC antenna of microminiature 433MHz, width is 28mm, and rectangular angular is 90 °, and radius is 7mm.
Wherein, the 11st revers turn part 311 1mm on the upside of antenna, is 15.5mm on the left of distance antenna.
Wherein, radiating element can be connected by the feed section circuit board by thimble with FPC antenna coupling.
Wherein, it is concentric annular portions that radiating element is partitioned into circular hollow out by the line of rabbet joint the 5th camber line revers turn part, and radiating element distance circle hollow part minimum distance is 1mm.
Wherein, on the downside of radiating element at the fillet radian of the medium substrate lower left corner, right upper portion is at the fillet radian of the medium substrate upper right corner.
Wherein, described radiating element, earth plate and via be content be the copper of more than 90%.
Wherein, described medium substrate is FR4 plate of material, and relative dielectric constant is 4.4.
Wherein, the maximum gain of the built-in FPC antenna of microminiature 433MHz is-19dBi.
Wherein, the frequency of the built-in FPC antenna of microminiature 433MHz is 418MHz-440MHz, carries a width of 22MHz.
Pass through such scheme, the invention has the beneficial effects as follows: the built-in FPC antenna of microminiature 433MHz is made up of medium substrate and radiating element, medium substrate is the round rectangle containing a circular hollow out, it is that antenna is powered that its circular hollow part can deposit button cell, radiating element be positioned on medium substrate cover steel structure, by the line of rabbet joint, radiating element is split, reduce antenna further to be taken up space, add the bandwidth of antenna simultaneously, antenna volume is little, simple in construction, convenient embedding, clawback loss simultaneously is little, maximum gain is-19dBi, on the basis of simple low cost, realize clawback loss low, gain is high, disclosure satisfy that its volume is little, the requirement of applied range.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.Wherein:
Fig. 1 is the structural representation of the built-in FPC antenna of microminiature 433MHz of the present invention；
Fig. 2 is the line of rabbet joint and the radiative unit structure schematic diagram of the built-in FPC antenna of microminiature 433MHz of the present invention；
Fig. 3 is the return loss plot of the built-in FPC antenna of microminiature 433MHz of the present invention；
Fig. 4 is H face and the E face gain diagram of the built-in FPC antenna of microminiature 433MHz of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making performing creative labour premise, broadly fall into the scope of protection of the invention.
Refer to shown in Fig. 1, Fig. 2, the built-in FPC antenna of microminiature 433MHz disclosed in the present embodiment is made up of medium substrate 1 and radiating element 2, medium substrate 1 is the round rectangle containing a circular hollow out, it is that antenna is powered that its circular hollow part can deposit button cell, radiating element 2 is the steel structure that covers being positioned on medium substrate 1, being split by radiating element by the line of rabbet joint 3 so that the frequency of the built-in FPC antenna of described microminiature 433MHz is 433MHz, return loss is less than-38dB.
Wherein, the line of rabbet joint includes first straight line revers turn part the 301, second camber line revers turn part the 302, the 3rd straight line revers turn part the 303, the 4th straight line revers turn part the 304, the 5th camber line revers turn part the 305, the 6th straight line revers turn part the 306, the 7th camber line revers turn part the 307, the 8th straight line revers turn part the 308, the 9th camber line revers turn part the 309, the tenth straight line revers turn part the 310 and the 11st straight line revers turn part 311 being sequentially connected with, and the 11st straight line revers turn part 311 can feed section 21 be connected with radiating element.
nullWherein，Line of rabbet joint width is 0.4mm，The a length of 5mm of the first straight line revers turn part 301，The a length of 7.3mm of the second camber line revers turn part 302、Radian is 90 °，The a length of 12.6mm of the 3rd straight line revers turn part 303，The a length of 3.7mm of the 4th straight line revers turn part 304，The a length of 24mm of the 5th camber line revers turn part 305、Radian is 120 °，The a length of 14mm of the 6th straight line revers turn part 306，The a length of 9.5mm of the 7th camber line revers turn part 307、Radian is 90 °，The a length of 14mm of the 8th straight line revers turn part 308，The a length of 9.5mm of the 9th camber line revers turn part 309、Radian is 90 °，The tenth a length of 8.5mm of straight line revers turn part 310，And the 11st a length of 6mm of straight line revers turn part 311.
Wherein, the radius of circular hollow out is 10mm, and right side and the downside of distance round rectangle are respectively 1mm and 1mm.
Wherein, the built-in FPC antenna of microminiature 433MHz be shaped as round rectangle, a length of 28mm of the built-in FPC antenna of microminiature 433MHz, width is 28mm, and rectangular angular is 90 °, and radius is 7mm.
Wherein, the 11st revers turn part 311 1mm on the upside of antenna, is 15.5mm on the left of distance antenna.
Wherein, radiating element can be connected by the feed section 21 circuit board by thimble with FPC antenna coupling.
Wherein, it is concentric annular portions that radiating element 2 is partitioned into circular hollow out by the line of rabbet joint the 5th camber line revers turn part 305, and radiating element distance circle hollow part minimum distance is 1mm.
Wherein, on the downside of radiating element at the fillet radian of the medium substrate lower left corner, right upper portion is at the fillet radian of the medium substrate upper right corner.
Wherein, described radiating element, earth plate and via be content be the copper of more than 90%.
Wherein, described medium substrate is FR4 plate of material, and relative dielectric constant is 4.4.
Referring to shown in Fig. 3, Fig. 4, the maximum gain of the built-in FPC antenna of microminiature 433MHz disclosed in the present embodiment is-19dBi.
Wherein, the frequency of the built-in FPC antenna of microminiature 433MHz is 418MHz-440MHz, carries a width of 22MHz.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (7)
1. the built-in FPC antenna of microminiature 433MHz, it is characterized in that, described, the built-in FPC antenna of microminiature 433MHz is made up of medium substrate and radiating element, and medium substrate is the round rectangle containing a circular hollow out, and its circular hollow part can be deposited button cell and be pcb board and antenna is powered, radiating element be positioned on medium substrate cover steel structure, being split by radiating element by the line of rabbet joint so that the frequency of the built-in FPC antenna of described microminiature 433MHz is 433MHz, return loss is less than-38dB.
The built-in FPC antenna of microminiature 433MHz the most according to claim 1, it is characterized in that, the described line of rabbet joint includes the first straight line revers turn part, the second camber line revers turn part, the 3rd straight line revers turn part, the 4th straight line revers turn part, the 5th camber line revers turn part, the 6th straight line revers turn part, the 7th camber line revers turn part, the 8th straight line revers turn part, the 9th camber line revers turn part, the tenth straight line revers turn part and the 11st straight line revers turn part being sequentially connected with, and the 11st straight line revers turn part can feed section be connected with radiating element.
nullThe built-in FPC antenna of microminiature 433MHz the most according to claim 1，It is characterized in that，Described line of rabbet joint width is 0.4mm，The a length of 5mm of the first straight line revers turn part，The a length of 7.3mm of the second camber line revers turn part、Radian is 90 °，The a length of 12.6mm of the 3rd straight line revers turn part，The a length of 3.7mm of the 4th straight line revers turn part，The a length of 24mm of the 5th camber line revers turn part、Radian is 120 °，The a length of 14mm of the 6th straight line revers turn part，The a length of 9.5mm of the 7th camber line revers turn part、Radian is 90 °，The a length of 14mm of the 8th straight line revers turn part，The a length of 9.5mm of the 9th camber line revers turn part、Radian is 90 °，The tenth a length of 8.5mm of straight line revers turn part，And the 11st a length of 6mm of straight line revers turn part.
The built-in FPC antenna of microminiature 433MHz the most according to claim 1, it is characterised in that described radiating element can be connected by the feed section circuit board by thimble with FPC antenna coupling.
The built-in FPC antenna of microminiature 433MHz the most according to claim 1, it is characterised in that the built-in FPC antenna of described microminiature 433MHz be shaped as round rectangle, the a length of 28mm of the built-in FPC antenna of microminiature 433MHz, width is 28mm, and rectangular angular is 90 °, and radius is 7mm；The radius of circular hollow out is 10mm.
The built-in FPC antenna of microminiature 433MHz the most according to claim 1, it is characterised in that the gain of the built-in FPC antenna of described microminiature 433MHz is-19dBi to the maximum.
The built-in FPC antenna of microminiature 433MHz the most according to claim 1, it is characterised in that the frequency of the built-in FPC antenna of described microminiature 433MHz is 418MHz-440MHz, carries a width of 22MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295045.5A CN105870617A (en) | 2016-05-06 | 2016-05-06 | Ultra-small 433 MHz built-in FPC antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295045.5A CN105870617A (en) | 2016-05-06 | 2016-05-06 | Ultra-small 433 MHz built-in FPC antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105870617A true CN105870617A (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295045.5A Pending CN105870617A (en) | 2016-05-06 | 2016-05-06 | Ultra-small 433 MHz built-in FPC antenna |
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| Country | Link |
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| CN (1) | CN105870617A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337662B1 (en) * | 1997-04-30 | 2002-01-08 | Moteco Ab | Antenna for radio communications apparatus |
| CN201946744U (en) * | 2010-11-23 | 2011-08-24 | 中兴通讯股份有限公司 | Electronic device with radio frequency identification antenna |
| CN105161855A (en) * | 2015-09-28 | 2015-12-16 | 江苏大学 | 433 MHz miniaturization omnidirectional micro-strip antenna and manufacture method |
| CN204885430U (en) * | 2015-09-14 | 2015-12-16 | 深圳洲斯移动物联网技术有限公司 | Small -size 433MHzFPC antenna |
| CN205621855U (en) * | 2016-05-06 | 2016-10-05 | 深圳洲斯移动物联网技术有限公司 | Subminiature 433MHz embeds FPC antenna |
-
2016
- 2016-05-06 CN CN201610295045.5A patent/CN105870617A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337662B1 (en) * | 1997-04-30 | 2002-01-08 | Moteco Ab | Antenna for radio communications apparatus |
| CN201946744U (en) * | 2010-11-23 | 2011-08-24 | 中兴通讯股份有限公司 | Electronic device with radio frequency identification antenna |
| CN204885430U (en) * | 2015-09-14 | 2015-12-16 | 深圳洲斯移动物联网技术有限公司 | Small -size 433MHzFPC antenna |
| CN105161855A (en) * | 2015-09-28 | 2015-12-16 | 江苏大学 | 433 MHz miniaturization omnidirectional micro-strip antenna and manufacture method |
| CN205621855U (en) * | 2016-05-06 | 2016-10-05 | 深圳洲斯移动物联网技术有限公司 | Subminiature 433MHz embeds FPC antenna |
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Application publication date: 20160817 |