CN106972238B - Planar multisystem integrated antenna for mobile terminal - Google Patents
Planar multisystem integrated antenna for mobile terminal Download PDFInfo
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- CN106972238B CN106972238B CN201710298167.4A CN201710298167A CN106972238B CN 106972238 B CN106972238 B CN 106972238B CN 201710298167 A CN201710298167 A CN 201710298167A CN 106972238 B CN106972238 B CN 106972238B
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- antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—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
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- 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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a planar multisystem integrated antenna for a mobile terminal, which consists of a first self-networking antenna (2), a second self-networking antenna (3), a floor (6) which are printed on the front surface of a medium substrate (1), a satellite communication antenna (4), a navigation antenna (5) and a spacer (7) which are printed on the back surface of the medium substrate (1). The invention can be used in microwave millimeter wave communication systems, especially in planarized mobile terminal devices. The multi-frequency multi-system integrated flat surface system has the advantages of multi-frequency multi-system integration, flat surface, light weight, low cost and quick processing period, and is suitable for the system.
Description
Technical Field
The invention belongs to the technical field of microwave and millimeter wave passive devices, and particularly relates to a multi-frequency and multi-mode planar integrated antenna in a microwave and millimeter wave passive device.
Background
With the rapid development of modern communication systems, the functions of mobile terminals are more and more complex, the electrical performance requirements are higher and higher, and the development of planarization, miniaturization, light weight and low cost is also proceeding. This trend has been developed to accommodate the commercialization requirements of microwave millimeter wave circuits. The planar multi-system integrated antenna is an integrated antenna with planarization, multi-frequency and multi-mode functions and low cost, which is suitable for mobile terminal equipment, and the planar integrated antenna greatly improves the cost and the space waste caused by a plurality of antennas in the traditional terminal equipment while meeting the requirement of the mobile terminal equipment on the multi-frequency and multi-mode functions.
The broadband antenna or multiple antennas are generally used for realizing the requirements of different modes of the terminal equipment, if the multiple antennas can be fused together, the space occupied by the antennas can be greatly saved, and the development of miniaturization and light weight of the terminal equipment can be promoted. Some mobile terminals now propose that an ad hoc network can be implemented while having functions of satellite navigation and satellite communication. In the traditional design, the self-networking antenna is realized by using a rod-shaped monopole, and satellite navigation and communication are realized by using a four-arm spiral structure. The three antennas are packaged respectively, occupy a large space, and are unfavorable for miniaturization and light weight of terminal equipment. On the other hand, it is also inconvenient to improve isolation between antennas by improving the design of antennas. The traditional design method has high processing cost, large volume, heavy weight, difficult integration and urgent need for improvement.
Disclosure of Invention
The invention aims to provide a planar multi-system integrated antenna for a mobile terminal, which overcomes the defects of heavy weight, large volume, high processing cost and difficult integration of the conventional multi-antenna of the terminal.
The technical scheme of the invention is as follows: a planar multi-system integrated antenna for a mobile terminal is characterized in that a multi-frequency band planar integrated antenna is formed by a first self-networking antenna, a second self-networking antenna, a floor, a satellite communication antenna, a navigation antenna and an isolation strip, wherein the first self-networking antenna, the second self-networking antenna and the floor are printed on the front surface of a medium substrate; the satellite communication antenna is positioned on the front side and the back side of the first self-organizing network antenna, and the navigation antenna is positioned on the front side and the back side of the second self-organizing network antenna; the isolation strip is positioned on the symmetry axis of the first ad hoc network antenna and the second ad hoc network antenna and is parallel to the first ad hoc network antenna and the second ad hoc network antenna; the floor is coplanar with the first ad hoc network antenna and the second ad hoc network antenna, and the floor is different from the satellite communication antenna, the navigation antenna and the isolation strip.
Furthermore, the first self-networking antenna is composed of a first main radiation part, a first series inductor and a first feed port, the second self-networking antenna is composed of a second main radiation part, a second series inductor and a second feed port, and the first main radiation part and the second main radiation part are of T-shaped structures.
Further, the satellite communication antenna comprises a feed port III, a parasitic element I and a parasitic metal strip which are loaded on the horizontal excitation element I, and the shapes of the horizontal excitation element I, the parasitic element I and the parasitic metal strip can be changed according to the shape of a required directional diagram.
Furthermore, the navigation antenna comprises a feed port IV and a parasitic oscillator II which are loaded on the horizontal excitation oscillator II, and the shapes of the horizontal excitation oscillator II and the parasitic oscillator II can be changed according to the shape of a required directional diagram.
Further, the isolation strip is composed of a printed metal strip and three inductors.
Further, the floor comprises a long metal strip etched with two rectangular gaps, and a left branch and a right branch symmetrically positioned at two ends of the long metal strip.
The invention has the advantages and beneficial effects that:
(1) Compared with the traditional independent multiple antennas, the invention has the advantage of compact structure. Compared with the traditional three-dimensional structure, under the condition that the antenna can normally work in various modes, the integrated degree is higher, the weight is lighter, the cost is lower, and the processing period is shorter by integrally printing the antennas in different modes on one dielectric plate;
(2) The planar integrated antenna realizes multimode operation by adopting different antennas printed on the same dielectric plate, so that decoupling parts can be added on the dielectric plate without additionally increasing the size of the antennas, thereby improving the isolation between the antennas and improving the performance of the antennas when the multimode operation is performed simultaneously.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments below: as shown in fig. 1, a planar multi-system integrated antenna for a mobile terminal is characterized in that a multi-band planar integrated antenna is formed by an ad hoc network antenna 1 printed on the front surface of a dielectric substrate 1, an ad hoc network antenna two 3, a floor 6, a satellite communication antenna 4 printed on the back surface of the dielectric substrate 1, a navigation antenna 5 and a spacer 7; the satellite communication antenna 4 is positioned on the front side and the back side of the first Ad hoc network antenna 2, and the navigation antenna 5 is positioned on the front side and the back side of the second Ad hoc network antenna 3; the isolation strip 7 is positioned on the symmetry axis of the first Ad hoc network antenna 2 and the second Ad hoc network antenna 3 and is parallel to the first Ad hoc network antenna 2 and the second Ad hoc network antenna 3; the floor 6 is coplanar with the first ad hoc network antenna 2 and the second ad hoc network antenna 3, and the floor 6 is different from the satellite communication antenna 4, the navigation antenna 5 and the isolation strip 7.
Furthermore, the first ad hoc network antenna 2 is composed of a first main radiating portion 21, a first series inductor 22 and a first feeding port 23, the second ad hoc network antenna 3 is composed of a second main radiating portion 31, a second series inductor 32 and a second feeding port 33, and the first main radiating portion 21 and the second main radiating portion 31 are both in T-shaped structures.
Further, the satellite communication antenna 4 includes a feeding port three 44, a parasitic element one 41 and a parasitic metal strip 43 loaded on the horizontal excitation element one 42, and the shapes of the horizontal excitation element one 42, the parasitic element one 41 and the parasitic metal strip 43 can be changed according to the shape of the desired pattern.
Further, the navigation antenna 5 includes a fourth feed port 53 and a second parasitic element 52 loaded on the second horizontal excitation element 51, and the shapes of the second horizontal excitation element 51 and the second parasitic element 52 may be changed according to the shape of the desired pattern.
Further, the barrier ribs 7 are constituted by printed metal strips 71 and three inductors 72.
Further, the floor 6 includes a long metal strip 61 with two rectangular slits etched therein, and a left branch 62 and a right branch 63 symmetrically located at both ends of the long metal strip 61.
The technical scheme of the invention is as follows: the ad hoc network antenna one 2 is a monopole antenna, and a good broadband matching is achieved by loading the series inductor 22 and the left branch 62 generated on the floor. The bottom floor 6 provides a reflective floor for the antenna so that the monopole antenna still has a horizontally omnidirectional radiation pattern. The second ad hoc network antenna 3 is identical to the first ad hoc network antenna 2. Since the first ad hoc network antenna 2 and the second ad hoc network antenna 3 are relatively close in distance, coupling between the first ad hoc network antenna and the second ad hoc network antenna is relatively large, and isolation between the two ad hoc networks can be adjusted by adjusting the length of the printed metal strip 71 and the value of the loaded three inductors 72. The navigation antenna 5 is a dipole with horizontal polarization, crosses the second polarization of the self-organizing network antenna 3, and has high isolation between the two. The dipole becomes unidirectional radiation due to reflection from the floor 6, which can cover the entire upper half-space. By adjusting the length, width and distance between the horizontal excitation vibrator II 51 and the parasitic vibrator II 52, the antenna can realize broadband radiation and cover several frequency bands of satellite navigation. Because linear polarization is adopted to receive circular polarization, the gain of the antenna is reduced by 3dB, and the antenna can still be ensured to effectively receive satellite signals by reasonably designing the antenna gain, so that high-precision navigation is realized. The satellite communication antenna 4 is likewise a horizontally polarized dipole. Crossing the one 2 polarization of the self-organizing network antenna, and even if being placed on the back of the self-organizing network antenna, the two have high isolation. The satellite communication antenna 4 has a unidirectional radiation function due to the reflection of the parasitic metal strip 43 and the floor 6, and can cover the entire upper half space. The antenna can be operated over a wide frequency band by adjusting the dimensions and spacing of the parasitic element one 41, the horizontal excited element one 42 and the parasitic metal strip 43. Also, by reasonably adjusting the antenna gain, after the polarization loss is reduced by 3dB, the antenna can still realize normal satellite communication functions.
In order to further illustrate the feasibility of the technical scheme, a specific design example is given below, a planar multisystem integrated antenna for a mobile terminal is designed, the designed ad hoc network antenna works at 400 MHz-678 MHz, four frequency bands of a navigation antenna are 1268MHz + -10.23 MHz,1561MHz + -2.04 MHz,1575MHz + -1.02 MHz,1602MHz + -4 MHz, and working frequency bands of a satellite communication antenna are 1995MHz + -15 MHz and 2185MHz + -15 MHz. The dielectric substrate used was an FR4 substrate having a thickness of 0.8mm and a dielectric constant of 4.5. The size of the whole dielectric substrate 1 is: 218.5mm×133.5mm×0.8mm, the height of the floor 6 is 40mm, and the lengths of the left branch 62 and the right branch 63 symmetrically positioned at two ends of the long metal strip 61 are 20mm; the lengths of the first ad hoc network antenna and the second ad hoc network antenna are 124.7mm, the distance between the two ad hoc networks is 95.5mm, and the length of the isolation strip 7 between the ad hoc networks is 120mm; the single arm length of the horizontal excitation oscillator II 51 of the navigation antenna 5 is 45mm, and the single arm length of the parasitic oscillator II 52 is 39mm; the satellite communication antenna 4 excites the first 42 single arm horizontally to 27mm long, the first 41 single arm is 25mm long, and the parasitic metal strip 43 is 100mm long. The test result shows that the standing wave of the ad hoc network antenna in the frequency band of 310 MHz-740 MHz is less than 3, the maximum gain range is 2.5 dB-3.38 dB, and the isolation degree in the whole frequency band between two ad hoc networks is more than 12dB. The frequency band of the navigation antenna is 1190 MHz-1690 MHz, the standing wave is less than 2, and the gain is-4 dB-2 dB within the angle range of +/-70 degrees. The working frequency band of the satellite communication antenna is 1870 MHz-2240 MHz, the standing wave is smaller than 2, and the gain is 0 dB-2.2 dB within the angle range of +/-60 degrees.
Those of ordinary skill in the art will recognize that the embodiments described herein are for the purpose of aiding the reader in understanding the principles of the present invention and should be understood that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the scope of the invention.
Claims (3)
1. A planar multisystem integrated antenna for a mobile terminal is characterized in that a first self-networking antenna (2), a second self-networking antenna (3), a floor (6) printed on the front surface of a medium substrate (1), a satellite communication antenna (4), a navigation antenna (5) and a spacer (7) printed on the back surface of the medium substrate (1) form a multi-band planar integrated antenna; the satellite communication antenna (4) is positioned on the front side and the back side of the first self-organizing network antenna (2), and the navigation antenna (5) is positioned on the front side and the back side of the second self-organizing network antenna (3); the isolation strip (7) is positioned on the symmetry axis of the first self-organizing network antenna (2) and the second self-organizing network antenna (3) and is parallel to the first self-organizing network antenna (2) and the second self-organizing network antenna (3); the floor (6) is coplanar with the first ad hoc network antenna (2) and the second ad hoc network antenna (3), and the floor (6) is different from the satellite communication antenna (4), the navigation antenna (5) and the isolation strip (7);
the first self-organizing network antenna (2) is composed of a first main radiation part (21), a first series inductor (22) and a first feed port (23), the second self-organizing network antenna (3) is composed of a second main radiation part (31), a second series inductor (32) and a second feed port (33), and the first main radiation part (21) and the second main radiation part (31) are of T-shaped structures;
the satellite communication antenna (4) comprises a feed port III (44), a parasitic oscillator I (41) and a parasitic metal strip (43) which are loaded on a horizontal excitation oscillator I (42), wherein the horizontal excitation oscillator I (42), the parasitic oscillator I (41) and the parasitic metal strip (43) are rectangular metal strips;
the navigation antenna (5) comprises a feed port IV (53) and a parasitic oscillator II (52) which are loaded on the horizontal excitation oscillator II (51), and the horizontal excitation oscillator II (51) and the parasitic oscillator II (52) are rectangular metal strips.
2. The planar multisystem integrated antenna for a mobile terminal according to claim 1, wherein: the isolating strip (7) is composed of a printed metal strip (71) and three inductors (72).
3. The planar multisystem integrated antenna for a mobile terminal according to claim 1, wherein: the floor (6) comprises a long metal strip (61) etched with two rectangular gaps, and a left branch (62) and a right branch (63) symmetrically positioned at two ends of the long metal strip (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298167.4A CN106972238B (en) | 2017-04-30 | 2017-04-30 | Planar multisystem integrated antenna for mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298167.4A CN106972238B (en) | 2017-04-30 | 2017-04-30 | Planar multisystem integrated antenna for mobile terminal |
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| Publication Number | Publication Date |
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| CN106972238A CN106972238A (en) | 2017-07-21 |
| CN106972238B true CN106972238B (en) | 2023-07-25 |
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| CN201710298167.4A Active CN106972238B (en) | 2017-04-30 | 2017-04-30 | Planar multisystem integrated antenna for mobile terminal |
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| KR102415591B1 (en) * | 2017-11-24 | 2022-07-04 | 삼성전자주식회사 | Electronic device for including antenna array |
| CN112350055B (en) * | 2019-08-09 | 2022-07-22 | 上海航天测控通信研究所 | X-waveband shaped beam antenna |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142607A (en) * | 2011-01-21 | 2011-08-03 | 杭州电子科技大学 | Broadband low-contour cavity-backed integrated antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3121551U (en) * | 2006-02-28 | 2006-05-18 | 友勁科技股▲ふん▼有限公司 | Flat antenna applied to wireless network equipment |
| CN101165970B (en) * | 2006-10-20 | 2011-08-24 | 鸿富锦精密工业（深圳）有限公司 | Antenna and its combination |
| US7710343B2 (en) * | 2007-10-16 | 2010-05-04 | Hong Kong Technologies Group Limited | Compact 3-port orthogonally polarized MIMO antennas |
| TW201021290A (en) * | 2008-11-28 | 2010-06-01 | Asustek Comp Inc | Planar antenna |
| TWI420743B (en) * | 2009-11-13 | 2013-12-21 | Ralink Technology Corp | Printed dual-band antenna for electronic device |
| CN201845871U (en) * | 2010-10-29 | 2011-05-25 | 华南理工大学 | Two-unit-broadband MIMO (multiple input multiple output) antenna array |
| CN202855894U (en) * | 2012-09-18 | 2013-04-03 | 桂林电子科技大学 | High isolation double unit MIMO array antenna |
| CN104022353A (en) * | 2014-06-12 | 2014-09-03 | 电子科技大学 | Multi-band MIMO antenna used for intelligent machine |
| CN207165745U (en) * | 2017-04-30 | 2018-03-30 | 电子科技大学 | A kind of plane mutli-system integration antenna for mobile terminal |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142607A (en) * | 2011-01-21 | 2011-08-03 | 杭州电子科技大学 | Broadband low-contour cavity-backed integrated antenna |
Non-Patent Citations (1)
| Title |
|---|
| 用于MIMO系统的终端阵列天线设计;刘义等;《杭州电子科技大学学报》;第29卷(第4期);全文 * |
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