CN204144441U - Based on the Q-band ultrahigh speed mobile terminal of wireless local area network antenna of high-order mode resonance - Google Patents
Based on the Q-band ultrahigh speed mobile terminal of wireless local area network antenna of high-order mode resonance Download PDFInfo
- Publication number
- CN204144441U CN204144441U CN201420622447.8U CN201420622447U CN204144441U CN 204144441 U CN204144441 U CN 204144441U CN 201420622447 U CN201420622447 U CN 201420622447U CN 204144441 U CN204144441 U CN 204144441U
- Authority
- CN
- China
- Prior art keywords
- band
- operation wavelength
- antenna
- branch
- mobile terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005855 radiation Effects 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Landscapes
- Waveguide Aerials (AREA)
Abstract
The utility model discloses a kind of Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance, comprise dielectric substrate, antenna radiation unit and metal ground plane; Antenna radiation unit comprises rectangle main radiating element, short circuit branch band, feed branch band, straight line open circuit branch band, L shape open circuit branch's band and q font branch band, radiative unit structure is that the planar inverted F-shape antenna with high-order mode resonance characteristic is formed, realize wideband operation by adding multiple resonance branch, and realize antenna, in the main tangent plane in magnetic field, there is omnidirectional radiation characteristic.Compared with prior art, the utility model is for the feature of millimeter wave frequency band (45GHz), utilize printed circuit technology, design achieves that structure is simple, the Q-band mobile terminal antenna of compact, this antenna has the little and omnidirectional radiation of broadband, standing wave, easy of integration, precision is higher, reproducible characteristic, also have simultaneously cost low, be convenient to the advantages such as batch production.
Description
Technical field
The utility model belongs to wireless communication technology field, particularly a kind of Q-band ultrahigh speed mobile terminal of wireless local area network antenna.
Background technology
Based on the frequency spectrum resource of millimeter wave frequency band abundance, the ultrahigh speed wireless LAN communication standard of new generation that development is correlated with and system are just becoming the important directions that future wireless system net develops.According to the frequency planning of Ministry of Industry and Information of China, the 42.4-48.4GHz frequency spectrum resource in Q-band delimited as ultrahigh speed wireless local area network service, and publicity at the end of 2013.The communication standardization work relevant to this frequency spectrum is just extensively carried out, and wherein, within 2012, to permit through International Electrical IEEE and is established 802.11aj(45GHz) standard operation group.This standard is devoted to exploitation 45GHz frequency range frequency spectrum resource, for ultrahigh speed wireless LAN communication of new generation, and the high-peed connection of the indoor various wireless terminal of main support and backbone network and interconnected.
According to spectrum division and the indoor application scene demand of 45GHz ultrahigh speed WLAN (wireless local area network), higher requirement is proposed to relevant mobile terminal antenna.Compared with the terminal antenna in conventional radio frequency microwave frequency band wireless communication system, Q-band mobile terminal antenna has following features and design difficulty:
1. according to 45GHz spectrum standard, Q-band mobile terminal antenna demand fulfillment to the continuous covering (relative bandwidth is greater than 15%) of wide working band, far above the coverage requirement of current frequency microwave frequency range mobile terminal antenna.At present, Q-band mobile terminal antenna design and rarely seen, lack reference.Therefore, the design of associated antenna realizes challenging and original.
2., in frequency microwave frequency range, the standing wave of usual mobile terminal antenna controls can meet mobile communication demand within 2.5 or 3.But, at millimeter wave frequency band, the transmit power level of access point or mobile device is far below the pertinent transmit power level of frequency microwave frequency range, in order to improve system effectiveness and power utilization, just higher requirement is proposed (such as to the standing wave of antenna, standing wave <2), which increases the design difficulty of Q-band mobile terminal antenna.
3., in order to meet the feature of fast mobile terminal sexual demand and adaptation terminal works attitude arbitrariness, mobile terminal antenna needs to have omnidirectional radiation feature.In order to meet omni-directional radiation demand, usually, the size of mobile terminal antenna is all less than an operation wavelength.But operation wavelength corresponding to Q-band is about 7mm, the antenna of conveniently antenna design method design is usually in 3-5mm scope.When minute sized like this mobile terminal antenna is integrated in terminal equipment, such as mobile phone, panel computer etc., metal parts in terminal equipment or large-area printed circuit board (PCB) exist as the scattering object near terminal antenna, thus destroy its radiation characteristic.Terminal antenna size is less, and it is larger that its radiation characteristic is subject to the impact of peripheral scattering object.Therefore, in this frequency band terminal Antenna Design, how guarantee period radiation characteristic is stablized or is affected by the external environment less, is a design difficulty.
4. the characteristic size of Q-band mobile terminal antenna is much smaller than the terminal antenna of frequency microwave frequency range, therefore, has higher sensitiveness to the error in the course of processing of antenna.Therefore, the Allowance Design of Q-band mobile terminal antenna is also the difficult point of design.
Utility model content
Goal of the invention: the purpose of this utility model is for Q-band a new generation's ultrahigh speed WLAN (wireless local area network) application demand and Related product blank, there is provided one to have wide working band, low standing wave, volume compact, have omnidirectional radiation characteristic, process Q-band portable antenna form that is simple, suitable batch production.
Technical scheme: for achieving the above object, the utility model adopts following technical scheme:
Based on a Q-band ultrahigh speed mobile terminal of wireless local area network antenna for high-order mode resonance, comprise dielectric substrate, be printed on the antenna radiation unit in dielectric substrate front and be printed on the metal ground plane at the dielectric substrate back side; Described antenna radiation unit comprises rectangle main radiating element and the short circuit branch band, feed branch band, the straight line that are connected with rectangle main radiating element are opened a way branch's band, L shape are opened a way branch's band and q font branch band; Described short circuit branch band is provided with the first metal throuth hole connecting short circuit branch band and metal ground plane, and described feed branch band is provided with the second metal throuth hole connecting feed branch band and metal ground plane; The area of the latter half of rectangle main radiating element, short circuit branch band and feed branch band in the area covering antenna radiation unit of described metal ground plane.
In a specific embodiment, described short circuit branch band and feed branch band are connected with bottom right drift angle with the lower-left drift angle of rectangle main radiating element respectively; Described straight line open circuit branch band is connected with the left upper end of rectangle main radiating element; Described L shape open circuit branch band is connected with the upper right side of rectangle main radiating element; Described q font branch band is connected with the upper top of rectangle main radiating element, has two tie points, surrounds a square shape vacancy.
In a specific embodiment, the length of described rectangle main radiating element is 0.8 to 1.0 operation wavelength, and width is 0.3 to 0.4 operation wavelength; The length of described short circuit branch band is 0.2 to 0.3 operation wavelength, and width is 0.1 to 0.2 operation wavelength; The length of described feed branch band is 0.3 to 0.4 operation wavelength, and width is 0.2 to 0.3 operation wavelength.
In a specific embodiment, described first metal throuth hole is arranged on the position of distance short circuit branch strap end 0.12 to 0.16 operation wavelength.
In a specific embodiment, the length of described straight line open circuit branch band is 0.1 to 0.2 operation wavelength, and width is 0.05 to 0.07 operation wavelength; The total length of described L shape open circuit branch band is 0.6 to 0.8 operation wavelength, and width is 0.05 to 0.07 operation wavelength; The width of described q font branch band is 0.05 to 0.07 operation wavelength, the length with square shape empty portions is 0.2 to 0.3 operation wavelength, width is 0.08 to 0.12 operation wavelength, and the length of the tail end of q font branch band is 0.3 to 0.4 operation wavelength.
Operation principle: according to known in the industry, conventional frequency microwave frequency range planar inverted F-shape antenna operation principle is quarter-wave resonance, and at 45GHz millimeter wave frequency band, operation wavelength is about 7mm, the size of corresponding quarter-wave resonance device can be very little, approaches the limit of accuracy of existing processing technology.Therefore, Q-band mobile terminal antenna of the present utility model is on conventional planar inverted F-shape antenna basis, by the characteristic size of radiating element is carried out equal proportion expansion or expansion, utilize its higher order resonances pattern to realize in the radiation of Q-band working band, the Antenna Operation realized is at the resonance lengths such as 3/4ths or 5/4ths.Meanwhile, expand its bandwidth of operation by increasing some current resonance branch road modes on main radiating element, and present omni-directional by the antenna pattern regulating the direction of each resonant branch to carry out control antenna entirety at H plane.In actual use, antenna can be fixed on a drift angle of mobile device, the metallic cylinders existed in this antenna mobile device is insensitive, and its radiation characteristic is relatively stable.Antenna has omnidirectional radiation characteristic in the main tangent plane in magnetic field, and the size on antenna floor is less on antenna radiation characteristics impact, is adapted at multiple types mobile terminal internal independence and uses or carry out the integrated use of cobasis sheet with operating circuit.
Beneficial effect: compared with prior art, the utility model is for the feature of millimeter wave frequency band (45GHz), utilize conventional printed circuit technology, design achieves that structure is simple, the Q-band mobile terminal antenna of compact, this antenna has the little and omnidirectional radiation of broadband, standing wave, easy of integration, precision is higher, reproducible characteristic, also have simultaneously cost low, be convenient to the advantages such as batch production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the S parameter measurement result of antenna in embodiment 1;
The antenna pattern simulation result of the H plane (XOZ) that Fig. 3 (a) is embodiment 1;
The electric field plane 1(YOZ that Fig. 3 (b) is embodiment 1) antenna pattern simulation result;
The electric field plane 2(XOY that Fig. 3 (c) is embodiment 1) antenna pattern simulation result.
Embodiment
Below in conjunction with specific embodiment, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Embodiment 1: as shown in Figure 1, a kind of Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance, comprise dielectric substrate 1, be printed on the antenna radiation unit 2 in dielectric substrate 1 front and be printed on the metal ground plane 3 at dielectric substrate 1 back side, wherein, antenna radiation unit 2 comprises one piece of rectangle main radiating element 4, short circuit branch band 5, feed branch band 6, straight line open circuit branch band 9, L shape open circuit branch band 10 and a q font branch band 11.
The length of rectangle main radiating element 2 is 0.8 to 1.0 operation wavelength, width is 0.3 to 0.4 operation wavelength, short circuit branch band 5 and feed branch band 6 are connected with bottom right drift angle with the lower-left drift angle of rectangle main radiating element 4 respectively, connected mode can select vertical mode or other distribution forms, and both short circuit branch band 5 and feed branch band 6 position can exchange according to user demand.The length of short circuit branch band 5 is 0.2 to 0.3 operation wavelength, and width is 0.1 to 0.2 operation wavelength, is provided with the first metal throuth hole 7 and ground plane 3 UNICOM in the position of distance short circuit branch band 5 end 0.12 to 0.16 operation wavelength; The length of feed branch band 6 is 0.3 to 0.4 operation wavelength, and width is 0.2 to 0.3 operation wavelength, and feed branch band 6 is provided with the second metal throuth hole 8 as distributing point.Have straight line to open a way branch band 9 the left upper end of rectangle main radiating element 4 is direct-connected, its length is 0.1 to 0.2 operation wavelength, and width is 0.05 to 0.07 operation wavelength; The upper right side of rectangle main radiating element 4 is connected to L shape open circuit branch band 10, and its total length is 0.6 to 0.8 operation wavelength, and width is 0.05 to 0.07 operation wavelength; The upper top of rectangle main radiating element 4 is connected with q font branch band 11, have two tie points, surround a square shape vacancy, the width of q font branch band 11 is 0.05 to 0.07 operation wavelength, the length with square shape empty portions is 0.2 to 0.3 operation wavelength, width is 0.08 to 0.12 operation wavelength, and the length of the tail end of q font branch band 11 is 0.3 to 0.4 operation wavelength.
In antenna designed by the present embodiment, the length of rectangle main radiating element 4 is about 0.9 operation wavelength, width is about 0.34 operation wavelength, the length of short circuit branch band 5 is about 0.27 operation wavelength, width is 0.15 operation wavelength, the length of feed branch band 6 is about 0.38 operation wavelength, width is about 0.25 operation wavelength, first metal throuth hole 7 is arranged on the position that distance short circuit branch band 5 end is similar to 0.15 operation wavelength, the length of straight line open circuit branch band 9 is about 0.14 operation wavelength, and width is about 0.06 operation wavelength; The total length of L shape open circuit branch band 10 is about 0.7 operation wavelength, width is about 0.06 operation wavelength, the width of q font branch band 11 is about 0.06 operation wavelength, the length with square shape empty portions is about 0.34 operation wavelength, width is about 0.1 operation wavelength, and the length of the tail end of q font branch band 11 is 0.38 operation wavelength.
Wherein, the area of dielectric substrate 1 and metal ground plane 3 can adjust flexibly; but demand fulfillment metal ground plane 3 can only the latter half of rectangle main radiating element 4, short circuit branch band 5 and feed branch band 6 in cover antenna radiating element 2; and reserve suitable protection width (>0.5mm), can ensure that antenna has required radiation characteristic.
As shown in Fig. 2, designed antenna is less than-10dB at 41.5-48GH reflection coefficient, meets Q-band ultrahigh speed WLAN (wireless local area network) application demand.
As shown in Fig. 3 (a), designed antenna presents approximate omnidirectional at the antenna pattern of H plane (XOZ), and gain fluctuation is between-1dBi to 5dBi, and average gain is about 3dBi, meets mobile terminal real-time reception property requirements.
Shown in Fig. 3 (b) He Fig. 3 (c), designed antenna presents electronically small antenna radiation characteristic at electric field plane radiation patterns.Shown in Fig. 3 (b), antenna presents backward radiation characteristic (in figure, left half space radiation is stronger), meets travelling carriage, and particularly handheld device uses, and is useful to reduction human body SAR.
Claims (5)
1. based on a Q-band ultrahigh speed mobile terminal of wireless local area network antenna for high-order mode resonance, it is characterized in that: comprise dielectric substrate (1), be printed on the antenna radiation unit (2) in dielectric substrate (1) front and be printed on the metal ground plane (3) at dielectric substrate (1) back side; Described antenna radiation unit (2) comprises rectangle main radiating element (4) and the short circuit branch band (5), feed branch band (6), the straight line that are connected with rectangle main radiating element (4) are opened a way branch's band (9), L shape are opened a way branch's band (10) and q font branch band (11); Described short circuit branch band (5) is provided with the first metal throuth hole (7) connecting short circuit branch band (5) and metal ground plane (3), and described feed branch band (6) is provided with the second metal throuth hole (8) connecting feed branch band (6) and metal ground plane (3); The area of the latter half of rectangle main radiating element (3), short circuit branch band (5) and feed branch band (6) in the area covering antenna radiation unit (2) of described metal ground plane (3).
2. the Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance according to claim 1, is characterized in that: described short circuit branch band (5) is connected with bottom right drift angle with the lower-left drift angle of rectangle main radiating element (4) respectively with feed branch band (6); Described straight line open circuit branch's band (9) is connected with the left upper end of rectangle main radiating element (4); Described L shape open circuit branch's band (10) is connected with the upper right side of rectangle main radiating element (4); Described q font branch band (11) is connected with the upper top of rectangle main radiating element (4), has two tie points, surrounds a square shape vacancy.
3. the Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance according to claim 2, is characterized in that: the length of described rectangle main radiating element (4) is 0.8 to 1.0 operation wavelength, and width is 0.3 to 0.4 operation wavelength; The length of described short circuit branch band (5) is 0.2 to 0.3 operation wavelength, and width is 0.1 to 0.2 operation wavelength; The length of described feed branch band (6) is 0.3 to 0.4 operation wavelength, and width is 0.2 to 0.3 operation wavelength.
4. the Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance according to claim 3, is characterized in that: described first metal throuth hole (7) is arranged on the position of distance short circuit branch band (5) end 0.12 to 0.16 operation wavelength.
5. the Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance according to claim 3, it is characterized in that: the length of described straight line open circuit branch's band (9) is 0.1 to 0.2 operation wavelength, and width is 0.05 to 0.07 operation wavelength; The total length of described L shape open circuit branch's band (10) is 0.6 to 0.8 operation wavelength, and width is 0.05 to 0.07 operation wavelength; The width of described q font branch band (11) is 0.05 to 0.07 operation wavelength, the length with square shape empty portions is 0.2 to 0.3 operation wavelength, width is 0.08 to 0.12 operation wavelength, and the length of the tail end of q font branch band (11) is 0.3 to 0.4 operation wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622447.8U CN204144441U (en) | 2014-10-24 | 2014-10-24 | Based on the Q-band ultrahigh speed mobile terminal of wireless local area network antenna of high-order mode resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622447.8U CN204144441U (en) | 2014-10-24 | 2014-10-24 | Based on the Q-band ultrahigh speed mobile terminal of wireless local area network antenna of high-order mode resonance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204144441U true CN204144441U (en) | 2015-02-04 |
Family
ID=52421107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420622447.8U Expired - Fee Related CN204144441U (en) | 2014-10-24 | 2014-10-24 | Based on the Q-band ultrahigh speed mobile terminal of wireless local area network antenna of high-order mode resonance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204144441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347943A (en) * | 2014-10-24 | 2015-02-11 | 江苏中兴微通信息科技有限公司 | High-order mode resonance-based Q-band ultrahigh-speed wireless local area network mobile terminal antenna |
| CN109786959A (en) * | 2019-03-08 | 2019-05-21 | 电连技术股份有限公司 | A kind of millimeter wave antenna |
-
2014
- 2014-10-24 CN CN201420622447.8U patent/CN204144441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347943A (en) * | 2014-10-24 | 2015-02-11 | 江苏中兴微通信息科技有限公司 | High-order mode resonance-based Q-band ultrahigh-speed wireless local area network mobile terminal antenna |
| CN104347943B (en) * | 2014-10-24 | 2017-12-19 | 江苏中兴微通信息科技有限公司 | Q-band ultrahigh speed mobile terminal of wireless local area network antenna based on high-order mode resonance |
| CN109786959A (en) * | 2019-03-08 | 2019-05-21 | 电连技术股份有限公司 | A kind of millimeter wave antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160181701A1 (en) | Antenna having a reflector for improved efficiency, gain, and directivity | |
| US20070018892A1 (en) | Planar inverted F antenna and method of making the same | |
| CN104037501B (en) | Mobile device | |
| Hua et al. | Compact tri‐band CPW‐fed antenna for WLAN/WiMAX applications | |
| CN204257819U (en) | Multiband wideband anti-metal antenna | |
| CN110289492B (en) | Compact broadband shark fin type vehicle-mounted combined antenna | |
| CN201893435U (en) | Broad-band antenna module and machine shell structure integrating broad-band antenna module | |
| US20090058736A1 (en) | Antenna structure and manufacture method thereof | |
| CN204144441U (en) | Based on the Q-band ultrahigh speed mobile terminal of wireless local area network antenna of high-order mode resonance | |
| CN102122751B (en) | Mobile communication device | |
| CN205231238U (en) | Vehicle positioning system and basic station unit | |
| Zheng et al. | Wearable PIFA antenna for smart glasses application | |
| CN204144442U (en) | A kind of Q-band ultrahigh speed mobile terminal of wireless local area network antenna | |
| CN204651475U (en) | A kind of printing-type multiple band WLAN/WiMAX antenna of compact conformation | |
| CN104347943A (en) | High-order mode resonance-based Q-band ultrahigh-speed wireless local area network mobile terminal antenna | |
| CN104347942B (en) | Q-wave band ultra-high-speed wireless local area network mobile terminal antenna | |
| Luo et al. | Novel multiband/broadband horizontally polarized omnidirectional antennas | |
| CN103515702B (en) | Terminal antenna | |
| CN205846222U (en) | A kind of antenna | |
| Chen et al. | Compact design of MIMO antennas for LTE 700 application | |
| CN104241804A (en) | Radio-Frequency Transceiver Device | |
| Gao et al. | UHF antennas for machine-to-machine communications and internet of things | |
| Raghavan et al. | Design of planar inverted-F antenna for wireless applications | |
| CN205211946U (en) | SAR's hybrid antenna falls | |
| CN203277654U (en) | Directional antenna apparatus |
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 |
Granted publication date: 20150204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |