CN101483268A - Different surface bending dual frequency LTCC antenna - Google Patents
Different surface bending dual frequency LTCC antenna Download PDFInfo
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- CN101483268A CN101483268A CNA2009100782597A CN200910078259A CN101483268A CN 101483268 A CN101483268 A CN 101483268A CN A2009100782597 A CNA2009100782597 A CN A2009100782597A CN 200910078259 A CN200910078259 A CN 200910078259A CN 101483268 A CN101483268 A CN 101483268A
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- ltcc
- frequency band
- radiating element
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Abstract
The invention discloses a different surface bending dual-frequency LTCC antenna comprising a chip aerial radiation unit containing a Bluetooth and a WLAN frequency band characterized in that the chip aerial radiation unit containing the Bluetooth and WLAN frequency band are arranged in a LTCC medium substrate, wherein a radiation unit 2a has a bending not only at different layers but also at the same layer, and the radiation unit 2b only has a bending at different layers; the antenna size is greatly reduced by using the two different bending forms, at the same time the mutual interference between two radiation units is avoided and the antenna radiation efficiency is improved. The invention has compact structure, high antenna radiation efficiency and wide application value.
Description
Technical field
The present invention designs a kind of double frequency LTCC antenna, particularly relates to the antenna component of a kind of bluetooth and WLAN frequency band.
Background technology
The design of dual-band chip antenna is an important topic of Modern wireless communication device design.Usually the Wireless Telecom Equipment working band has nothing in common with each other, and each antenna can only use at a kind of communication; So not only increase the design cost of antenna but also increased the complexity of equipment.And, cause the size of antenna also bigger because most of size of general radio-frequency front-end is all shared by antenna.
And existing antenna usually design on pcb board,, and then cause the stability of antenna to reduce so antenna is subjected to the influence of outside environment factor very strong, the life-span of antenna shortens.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, the dual-band chip antenna of a kind of simple bluetooth and WLAN frequency range is proposed, adopted the double frequency LTCC antenna of two kinds of different bending modes, the antenna structure compactness and the radiation effect of gained are good, antenna is built among the LTCC, has improved the stability of antenna.
The technical solution adopted for the present invention to solve the technical problems is: a kind of different surface bending dual frequency LTCC antenna, include the antenna component radiating element of bluetooth and WLAN frequency band, it is characterized in that: be equipped with the antenna component radiating element of bluetooth frequency band and the antenna component radiating element of WLAN frequency band in the inside of LTCC medium substrate.
The antenna component radiating element 2a of described bluetooth frequency band not only in the LTCC dielectric structure between the different layers bending be antarafacial bending, simultaneously also with the bending on one deck.
It is the antarafacial bending that the antenna component radiating element 2b of described WLAN frequency band only bends between the different layers in the LTCC dielectric structure.
The present invention compares the advantage that is had with modern technologies: the bending mode that two radiating elements of the present invention adopt is different, can make full use of the structure of LTCC three-dimensional substrate, make the antenna stabilization enhancing, compact conformation, and, make that the radiation efficiency of antenna is higher because the bending mode of two radiating elements has not reduced the phase mutual interference between the two so yet always.
Description of drawings
Fig. 1 is the structure chart that works in bluetooth frequency range radiating element;
Fig. 2 is the structure chart that works in WLAN frequency range radiating element;
Fig. 3 is the topology layout schematic diagram of entire antenna;
Among the figure: 1 is antenna input port, and 2a is the antenna component radiative unit structure of a plurality of bluetooth frequency band, and 2b is the antenna component radiative unit structure of a plurality of WLAN frequency bands, and 3 is the LTCC medium substrate.
Embodiment
Introduce the present invention in detail below in conjunction with the drawings and the specific embodiments.
The different surface bending dual frequency LTCC antenna of present embodiment, the antenna component radiating element that includes bluetooth and WLAN frequency band is equipped with the antenna component radiative unit structure 2a of bluetooth frequency band and the antenna component radiative unit structure 2b of WLAN frequency band in the inside of LTCC medium substrate 3; The radiating element of two kinds of antennas is metal material, and the metal between the antenna radiation unit different layers all is to connect by metallic vias; The antenna component radiating element 2a of described bluetooth frequency band not only between the different layers of LTCC medium substrate bending be antarafacial bending, simultaneously also with the bending on one deck; So metallic vias is divided into two rows, as shown in Figure 1; It is the antarafacial bending that the antenna component radiating element 2b of described WLAN frequency band only bends between the different layers of LTCC medium substrate; So metallic vias is all on same straight line, as shown in Figure 2; The operating frequency of different surface bending dual frequency LTCC antenna of the present invention all be to have this length that connects a radiating element to determine.
The dual-band antenna of this example, source signal has 1 end feed-in, divide device to enter radiating element through a simple and easy merit then, frequency difference according to the feed signal, the radiation of antenna has different radiating elements to finish, if the frequency range of feeder signals is the bluetooth frequency range, then the antenna component radiating element 2a of bluetooth frequency band carries out radiation, the antenna component radiating element 2b non-radiating electromagnetic wave of WLAN frequency band, if the frequency range of opposite feed signal is the WLAN frequency range, the antenna component radiating element 2a non-radiating of bluetooth frequency band then, the antenna component radiating element 2b radiated electromagnetic wave of WLAN frequency band has so just been finished irradiation of electromagnetic waves; In with a kind of antenna, can realize the double-frequency wireless communication like this, also reduce the complexity of the design cost and the antenna of antenna simultaneously; Antenna of the present invention is realized the radiating element of two kinds of bendings in the LTCC medium substrate, make antenna be affected by the external environment and reduce, thereby strengthened the stability of antenna, and structure is also compact more; The LTCC medium substrate can also effectively be protected radiating element, has prolonged the life-span of antenna; And two kinds of bending modes that technical solution of the present invention adopts are inconsistent, so also reduced the phase mutual interference between the two, make that the radiation efficiency of antenna is higher.
Claims (3)
1, a kind of different surface bending dual frequency LTCC antenna, include the antenna component radiating element of bluetooth and WLAN frequency band, it is characterized in that: be equipped with the antenna component radiating element (2a) of bluetooth frequency band and the antenna component radiating element (2b) of WLAN frequency band in the inside of LTCC medium substrate (3).
2, a kind of different surface bending dual frequency LTCC antenna according to claim 1, it is characterized in that: the antenna component radiating element (2a) of described bluetooth frequency band not only in LTCC medium substrate (3) between the different layers bending be antarafacial bending, simultaneously also with the bending on one deck.
3, a kind of different surface bending dual frequency LTCC antenna according to claim 1 is characterized in that: it is the antarafacial bending that the antenna component radiating element (2b) of described WLAN frequency band only bends between the different layers in LTCC medium substrate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100782597A CN101483268A (en) | 2009-02-23 | 2009-02-23 | Different surface bending dual frequency LTCC antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100782597A CN101483268A (en) | 2009-02-23 | 2009-02-23 | Different surface bending dual frequency LTCC antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101483268A true CN101483268A (en) | 2009-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100782597A Pending CN101483268A (en) | 2009-02-23 | 2009-02-23 | Different surface bending dual frequency LTCC antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN101483268A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950857A (en) * | 2010-08-27 | 2011-01-19 | 电子科技大学 | Chip antenna based on LTCC ceramic medium |
| CN101710642B (en) * | 2009-12-17 | 2012-09-05 | 华中科技大学 | Low-temperature co-fired ceramic mobile phone antenna with three frequency bands |
| CN102763273A (en) * | 2011-03-07 | 2012-10-31 | 深圳市嘉瑨电子科技有限公司 | Radiation component of miniature antenna |
| CN103682605A (en) * | 2012-11-16 | 2014-03-26 | 成都成电电子信息技术工程有限公司 | Small broadband multilayer chip antenna |
| CN104852132A (en) * | 2015-04-08 | 2015-08-19 | 广东风华高新科技股份有限公司 | Bluetooth-WiFi double-frequency antenna based on low-temperature co-fired ceramic |
| CN105762510A (en) * | 2016-04-22 | 2016-07-13 | 青岛中科移动物联科技有限公司 | PCB antenna of double-frequency WiFi |
-
2009
- 2009-02-23 CN CNA2009100782597A patent/CN101483268A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710642B (en) * | 2009-12-17 | 2012-09-05 | 华中科技大学 | Low-temperature co-fired ceramic mobile phone antenna with three frequency bands |
| CN101950857A (en) * | 2010-08-27 | 2011-01-19 | 电子科技大学 | Chip antenna based on LTCC ceramic medium |
| CN101950857B (en) * | 2010-08-27 | 2012-12-05 | 电子科技大学 | Chip antenna based on LTCC ceramic medium |
| CN102763273A (en) * | 2011-03-07 | 2012-10-31 | 深圳市嘉瑨电子科技有限公司 | Radiation component of miniature antenna |
| CN102763273B (en) * | 2011-03-07 | 2014-04-16 | 深圳市嘉瑨电子科技有限公司 | Radiation component of miniature antenna |
| CN103682605A (en) * | 2012-11-16 | 2014-03-26 | 成都成电电子信息技术工程有限公司 | Small broadband multilayer chip antenna |
| CN104852132A (en) * | 2015-04-08 | 2015-08-19 | 广东风华高新科技股份有限公司 | Bluetooth-WiFi double-frequency antenna based on low-temperature co-fired ceramic |
| CN105762510A (en) * | 2016-04-22 | 2016-07-13 | 青岛中科移动物联科技有限公司 | PCB antenna of double-frequency WiFi |
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Application publication date: 20090715 |