CN105449374A - Antenna and antenna module - Google Patents
Antenna and antenna module Download PDFInfo
- Publication number
- CN105449374A CN105449374A CN201410394469.8A CN201410394469A CN105449374A CN 105449374 A CN105449374 A CN 105449374A CN 201410394469 A CN201410394469 A CN 201410394469A CN 105449374 A CN105449374 A CN 105449374A
- Authority
- CN
- China
- Prior art keywords
- antenna
- support arm
- branch
- feed
- section
- 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.)
- Granted
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
The invention relates to an antenna and an antenna module. The antenna includes: a substrate which includes a first face and a second face; a feed-in section which is formed on the first face of the substrate and is used for transmitting a radio-frequency signal; a first radiating body which is electrically connected to the feed-in section and is formed on the first face of the substrate, wherein the first radiating body includes a first support arm and a second support arm, the first support arm is electrically connected to the feed-in section, a first branch and a second branch, and the second support arm is electrically connected to the feed-in section, the first support arm, a third branch and a fourth branch; and a second radiating body which is electrically connected to the feed-in section and is formed on the second face of the substrate, wherein the second radiating body includes a third support arm and a fourth support arm, the third support arm is electrically connected to the feed-in section, a fifth branch and a sixth branch, and the fourth support arm is electrically connected to the feed-in section, the third support arm, a seventh branch and an eighth branch. According to the antenna and the antenna module, data throughout of multiple-input and multiple-output can be improved in finite space.
Description
Technical field
The present invention relates to a kind of antenna and Anneta module, espespecially a kind of antenna and Anneta module with omnidirectional radiation pattern.
Background technology
The electronic product with radio communication function is launched by antenna or receives radio wave, to transmit or to exchange radio signal, and then accessing wireless network.Therefore, in order to allow user can access cordless communication network more easily, the bandwidth of ideal antenna should increase as much as possible in tolerance band, and size then should reduce as far as possible, to coordinate the trend of electronic product volume-diminished.In addition, along with the continuous evolution of wireless communication technology, the antenna amount that electronic product configures may increase.For example, WLAN standard IEEE802.11n supports multiple-input and multiple-output (Multi-inputMulti-output, MIMO) communication technology, that is related electronic products is by multiple (or many groups) antenna synchronous transmitting/receiving wireless signal, with when not increasing bandwidth or total transmitting power consume (TransmitPowerExpenditure), increase data throughout (Throughput) and the transmitting range of system significantly, and then effectively promote spectrum efficiency and the transmission rate of wireless communication system, improve communication quality.
From the above, realize spatial multiplexing in MIMO function, diverse technologies, prerequisite must be arranged in pairs or groups and be organized antenna more, so that space is divided into many passages, and then provides multiple antenna patterns illustrated.When same electronic product configures many group antennas under the confined space, one of primary demand in communication is these antenna is all independently, can not influence each other each other, and have good isolation.But, under the confined space, the data throughout that isolation between antennas maintains multiple-input and multiple-output simultaneously again be improved, many design difficulty certainly will be increased.Therefore, how to design the antenna meeting transmission demand, take into account size and function simultaneously, become one of target that industry makes great efforts.
Therefore, need to provide a kind of antenna and Anneta module to solve the problems referred to above.
Summary of the invention
Therefore, namely main purpose of the present invention is to provide a kind of miniature antenna and the associated antenna module with omnidirectional, to meet application demand.
The present invention discloses a kind of antenna, includes a substrate, includes a first surface and one second; One feed-in section, is formed at this first surface of this substrate, is used for transmitting-receiving one radiofrequency signal; One first radiant body, be electrically connected at this feed-in section, be formed at this first surface of this substrate, include one first support arm, its one end is electrically connected at this feed-in section, and the other end is electrically connected at one first branch and one second branch, and wherein this first support arm extends from the junction with this feed-in section towards a first direction, this first branch extends from this first support arm towards a second direction, and this second branch extends from this first support arm towards a third direction; And one second support arm, its one end is electrically connected at this feed-in section and this first support arm, the other end is electrically connected at one the 3rd branch and one the 4th branch, wherein this second support arm extends from the junction of this feed-in section and this first support arm opposite direction towards this first direction, 3rd branch extends from this second support arm towards the opposite direction of this second direction, and the 4th branch extends from this second support arm towards the opposite direction of this third direction; And one second radiant body, be electrically connected at this feed-in section, be formed at this second of this substrate, include one the 3rd support arm, its one end is electrically connected at this feed-in section, and the other end is electrically connected at a quintafurcation and one the 6th branch, and wherein the 3rd support arm extends from the junction with this feed-in section towards this first direction, this quintafurcation extends from the 3rd support arm towards this third direction, and the 6th branch extends from the 3rd support arm towards this second direction; And one the 4th support arm, its one end is electrically connected at this feed-in section and the 3rd support arm, the other end is electrically connected at one the 7th branch and one the 8th branch, wherein the 4th support arm extends from the junction of this feed-in section and the 3rd support arm opposite direction towards this first direction, 7th branch extends from the 4th support arm towards the opposite direction of this third direction, and the 8th branch extends from the 4th support arm towards the opposite direction of this second direction; Wherein, this second direction is vertical with this third direction, and this first direction is this second direction turns clockwise the direction of 135 degree.
The present invention also discloses a kind of antenna, and this antenna comprises: a substrate, and this substrate comprises a first surface and one second; One feed-in section, this feed-in section is formed at this first surface of this substrate, is used for transmission one radiofrequency signal; One first radiant body, this first radiant body is electrically connected at this feed-in section, be formed at this first surface of this substrate, this first radiant body comprises: one first support arm, one end of this first support arm is electrically connected at this feed-in section, the other end is electrically connected at one first branch and one second branch, wherein this first support arm extends from the junction with this feed-in section towards a first direction, this first branch extends from this first support arm towards a second direction, and this second branch extends from this first support arm towards a third direction; And one second support arm, one end of this second support arm is electrically connected at this feed-in section and this first support arm, the other end is electrically connected at one the 3rd branch and one the 4th branch, wherein this second support arm extends from the junction of this feed-in section and this first support arm opposite direction towards this first direction, 3rd branch extends from this second support arm towards the opposite direction of this second direction, and the 4th branch extends from this second support arm towards the opposite direction of this third direction; And one second radiant body, this second radiant body is electrically connected at this feed-in section, be formed at this second of this substrate, this second radiant body comprises: one the 3rd support arm, one end of 3rd support arm is electrically connected at this feed-in section, the other end is electrically connected at a quintafurcation and one the 6th branch, wherein the 3rd support arm extends from the junction with this feed-in section towards this first direction, this quintafurcation extends from the 3rd support arm towards this third direction, and the 6th branch extends from the 3rd support arm towards this second direction; And one the 4th support arm, one end of 4th support arm is electrically connected at this feed-in section and the 3rd support arm, the other end is electrically connected at one the 7th branch and one the 8th branch, wherein the 4th support arm extends from the junction of this feed-in section and the 3rd support arm opposite direction towards this first direction, 7th branch extends from the 4th support arm towards the opposite direction of this third direction, and the 8th branch extends from the 4th support arm towards the opposite direction of this second direction; Wherein, this second direction is vertical with this third direction, and this first direction is this second direction turns clockwise the direction of 135 degree.
The present invention also discloses a kind of Anneta module, and this Anneta module is used for receiving and dispatching the radiofrequency signal corresponding to a working frequency range, and this Anneta module comprises: at least one electric dipole antenna; And at least one magnetic loop antenna, one wherein in this at least one magnetic loop antenna adjacent in this at least one electric dipole antenna; Wherein this at least one electric dipole antenna and this at least one magnetic loop antenna are arranged at a wavelength of this radiofrequency signal with inner region, and one first polarised direction of this at least one magnetic loop antenna is perpendicular to one second polarised direction of this at least one electric dipole antenna.
Anneta module of the present invention is according to the different characteristic of small size antenna induced field sensitivity, magnetic loop antenna and electric dipole antenna is configured in near-field region, when the antenna space configuration of arranging in pairs or groups suitable, the annoyance level between multiple antenna can be made to be down to minimum, therefore the present invention can under the confined space, reduce the interference between multiple antenna and promote isolation, to promote the data throughout of multiple-input and multiple-output.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an Anneta module of the embodiment of the present invention.
Fig. 2 to Fig. 4 is respectively the perspective view of the antenna of Fig. 1, vertical view and upward view.
Fig. 5 is the perspective view of another antenna of Fig. 1.
Fig. 6 is the schematic diagram of another Anneta module of the embodiment of the present invention.
Fig. 7 depicts the voltage standing wave ratio schematic diagram of all antennas of Fig. 6.
Fig. 8 depicts the isolation of wherein triantennary in 2.4GHz frequency range of Fig. 6.
Fig. 9 depicts the isolation of other triantennary in 5GHz frequency range of Fig. 6.
Figure 10 depicts the isolation of all antennas in 2.4GHz to 5GHz frequency range of Fig. 6.
Figure 11 to Figure 13 depicts the radiation pattern figure of wherein triantennary in 2.4GHz frequency range of Fig. 6 respectively.
Figure 14 to Figure 16 depicts the radiation pattern figure of other triantennary in 5GHz frequency range of Fig. 6 respectively.
Primary clustering symbol description:
1,6 Anneta modules
PCB1, PCB2 substrate
ANT_1 ~ ANT_6, antenna
ANT_1′～ANT_6′
MCH1, MCH2 mechanism member
10,20 radiant bodies
11,12,23,24 support arms
111,112,123,124,235,236,247, branch
248
15,55 feed-in sections
151 feed sides
16 perforations
RF_1, RF_2 radiofrequency signal
D1, D2 distance
L1, L2 length
X, Y, Z-direction
Embodiment
The induction field sensitivity (electricfieldsensitivity) of antenna and the ratio of induced field sensitivity (magneticfieldsensitivity) are called field impedance (filedimpedance), wherein, it is almost as broad as long that the field impedance as small size antennas such as loop aerial, unipole antenna and dipole antennas (is approximately a wavelength of its operation signal with exterior domain) in far-field region; Relatively, in near-field region, (be approximately a wavelength of its operation signal with inner region), the field impedance of small size antenna can change along with the distance of transmission, direction and angle.
It should be noted that, according to the field impedance characteristic (Main Basis at 1/10th wavelength of operation signal with inner region) at near-field region, small size antenna can divide into the larger magnetic loop antenna of induced field sensitivity (Magneticloopantenna) and larger two classes such as electric monopole (Electricmonopole) antenna and eelctric dipole (Electricdipole) antenna of induction field sensitivity, and the sensitivity of this two classes antenna induction field in near-field region is complementary relationship just.For example, electric dipole antenna at 1/10th wavelength of operation signal with the induction field sensitivity of inner region comparatively large (electricfieldsensitivitydominant).On the other hand, magnetic loop antenna at 1/10th wavelength of operation signal with the induced field sensitivity of inner region comparatively large (magneticfieldsensitivitydominant).
According to above-mentioned characteristic, magnetic loop antenna and electric dipole antenna are arranged in near-field region simultaneously, and polarised direction vertical each other when, electric dipole antenna and magnetic loop antenna can distinguish electricity, the magnetic-field component of induced electricity magnetic wave, by interfering with each other and have good isolation.
Therefore, in order under the confined space, reduce the interference between multiple antenna and promote isolation, the present invention is according to the different characteristic of induced electricity, magnetic field sensitivity, dissimilar small size antenna is suitably configured in near-field region, so the annoyance level between multiple antenna can be made to be down to minimum, to maintain the data throughout of multiple-input and multiple-output.
Specifically, please refer to Fig. 1, it is the schematic diagram of an Anneta module 1 of the embodiment of the present invention.Anneta module 1 is applicable to the wireless communication system of a support MIMO technique, such as IEEE802.11n system, but is not limited thereto.Anneta module 1 includes two substrate P CB1 and PCB2, antenna ANT_1 ~ ANT_6 and two mechanism member MCH1 and MCH2.
Structurally, mechanism member MCH1 and MCH2 is preferably the hollow cubic body of one side open, make the substrate P CB1 of part and PCB2 can be arranged at hollow cubic body inner, and designed by grab and substrate P CB1 and PCB2 be fixed between mechanism member MCH1 and MCH2, with promote each other in conjunction with stability.In addition, the fixed form of mechanism member MCH1 and MCH2 and substrate P CB1 and PCB2 is not limited thereto, also by welding, pasting or lock the modes such as screw and fix.Antenna ANT_1, ANT_4 are preferably a magnetic loop antenna, and have horizontal polarization directions.And antenna ANT_2, ANT_3, ANT_5, ANT_6 are preferably an electric dipole antenna, and there is vertical polarization directions.Certainly, the polarised direction of magnetic loop antenna ANT_1, ANT_4 and electric dipole antenna ANT_2, ANT_3, ANT_5, ANT_6 is not limit, as long as its polarised direction mutually vertically.In addition, antenna ANT_1 and ANT_4 is formed on substrate P CB1 and PCB2 respectively by printing technology, and antenna ANT_2, ANT_5 and antenna ANT_3, ANT_6 are formed on mechanism member MCH1, MCH2 respectively by a laser direct forming (LaserDirectStructuring) technology.But the molding mode of antenna is not limited thereto.
On space matching, antenna ANT_1 ~ ANT_3 can be considered a sub antenna module, is used for receiving and dispatching the radiofrequency signal corresponding to a working frequency range, to support the multi-input multi-output system of 3X3, and the 2.4GHz frequency range of such as IEEE802.11n system.And antenna ANT_4 ~ ANT_6 can be considered another sub antenna module, be used for receiving and dispatching the radiofrequency signal corresponding to another working frequency range, to support the multi-input multi-output system of another 3X3, the 5GHz frequency range of such as IEEE802.11n system.Because the working frequency range of two sub antenna modules is different, the situation of co-channel interference so also can be avoided.Under this framework, Anneta module 1 can support the multi-input multi-output system of two groups of 3X3 simultaneously, to improve data throughout.
Please note, in the present embodiment, single sub antenna module has selected single magnetic loop antenna to arrange in pairs or groups the antenna configuration (antennaconfiguration) of two electric dipole antennas, and this is that to compare the transmission range of magnetic loop antenna far away owing to measuring upper electric dipole antenna on the spot.Therefore, compare two magnetic loop antenna and to arrange in pairs or groups the antenna configuration of single electric dipole antenna, if select single magnetic loop antenna to arrange in pairs or groups the antenna configuration of two electric dipole antennas, Anneta module can reach transmission range far away on the whole.
Further, because antenna ANT_2 and ANT_3 is electric dipole antenna of the same type, be therefore preferably configured in lie farthest away part, i.e. diagonally opposing corner place, to be down to minimum by annoyance level each other.Meanwhile, because antenna ANT_1 is magnetic loop antenna, be dissimilar with antenna ANT_2 and ANT_3, therefore antenna ANT_1 can be arranged between antenna ANT_2 and ANT_3, lower to the interference of adjacent antenna.In like manner, because antenna ANT_5 and ANT_6 is electric dipole antenna of the same type, be therefore preferably configured in lie farthest away part, i.e. another diagonally opposing corner place, to be down to minimum by annoyance level each other.Meanwhile, because antenna ANT_4 is magnetic loop antenna, be dissimilar with antenna ANT_5 and ANT_6, therefore antenna ANT_4 can be arranged between antenna ANT_5 and ANT_6, lower to the interference of adjacent antenna.
Due to the structural design of electric dipole antenna ANT_2, ANT_3, ANT_5 and ANT_6 and operating principle widely known in the art, therefore to be not repeated herein.Below be only described in detail for the structural design of magnetic loop antenna ANT_1 and ANT_4 and operating principle.
Please also refer to Fig. 2 to Fig. 4, Fig. 2 is the perspective view of antenna ANT_1, and Fig. 3 is the vertical view of antenna ANT_1, and Fig. 4 is the upward view of antenna ANT_1, and wherein the view directions of Fig. 3, Fig. 4 is identical.As shown in Figure 2, antenna ANT_1 includes a feed-in section 15, radiant body 10 (representing with dot pattern) and a radiant body 20 (representing with blank).One end of feed-in section 15 is electrically connected at a feed side 151, is used for feed-in one radiofrequency signal RF_1 to antenna ANT_1.Radiant body 10 is electrically connected at the other end of feed-in section 15, is formed at a first surface (i.e. vertical view) of substrate P CB1.Radiant body 20 is electrically connected at the other end of feed-in section 15, is formed at one second (i.e. the upward view) of substrate P CB1.Wherein a perforation 16 is formed in substrate P CB1, is used for being electrically connected radiant body 10,20 and feed-in section 15.
As shown in Figure 3, radiant body 10 includes support arm 11,12 and branch 111,112,123,124.Structurally, one end of support arm 11 is electrically connected at feed-in section 15, the other end is electrically connected at branch 111 and 112, wherein support arm 11 turn clockwise from feed-in section 15 towards direction X 135 degree direction extend, branch 111 extends from support arm 11 towards direction X, and branch 112 extends from support arm 11 towards direction Y.One end of support arm 12 is electrically connected at feed-in section 15, the other end is electrically connected at branch 123 and 124, wherein support arm 12 is rotated counterclockwise the direction extension of 45 degree from feed-in section 15 towards direction X, branch 123 extends from support arm 12 towards the opposite direction of direction X, and branch 124 extends from support arm 12 towards the opposite direction of direction Y.Turn clockwise from the junction of support arm 11,12 towards the direction X direction of 45 degree of feed-in section 15 extends to feed side 151, with feed-in radiofrequency signal RF_1.
As shown in Figure 4, radiant body 20 includes support arm 23,24 and branch 235,236,247,248.Structurally, one end of support arm 23 is electrically connected at feed-in section 15 by perforation 16, the other end is electrically connected at branch 235 and 236, wherein support arm 23 turn clockwise from perforation 16 towards direction X 135 degree direction extend, branch 235 extends from support arm 23 towards direction Y, and branch 236 is extended towards direction X by support arm 23.One end of support arm 24 is also electrically connected at feed-in section 15 by perforation 16, the other end is electrically connected at branch 247 and 248, wherein support arm 24 is rotated counterclockwise the direction extension of 45 degree from perforation 16 towards direction X, branch 247 extends from support arm 24 towards the opposite direction of direction Y, and branch 248 extends from support arm 24 towards the opposite direction of direction X.
On a projection plane, branch 111 is parallel to branch 236, and branch 112 is parallel to branch 235, and branch 123 is parallel to branch 248, branch 124 is parallel to branch 247, and between above-mentioned branch parallel between two on this projection plane respectively at a distance of a distance D1 (being illustrated in Fig. 2); The end of branch 123 and 235 and branch 111 and 247 on this projection plane respectively at a distance of a distance D2 (being illustrated in Fig. 2); And the direction that branch 111,236,247,124 is rotated counterclockwise 45 degree with direction X is a symmetry axis, be symmetrical in branch 235,112,123,248 respectively.
Support arm 11,12,23,24 has a length L1 respectively, and branch 111,123,235,247 has a length L2 respectively, and the summation of length L1, L2 is substantially equal to the quarter-wave of radiofrequency signal RF_1.Thus, antenna ANT_1 can resonant RF signal RF_1, to be radiated in the air by radiofrequency signal RF_1.
Operationally, when radiofrequency signal RF_1 is fed into antenna ANT_1, radio-frequency current is divided into two paths by after feed-in section 15 feed-in, wherein a path flows to the end of branch 111 along support arm 11, then by coupling effect, radio-frequency current is coupled to branch 247, is finally back to feed-in section 15 along support arm 24.Another path then flows to the end of branch 123 along support arm 12, then by coupling effect, radio-frequency current is coupled to branch 235, is finally back to feed-in section 15 along support arm 23.Meanwhile, under suitable distance D1, radio-frequency current is coupled respectively to branch 236,124,248,112 by coupling effect by branch 111,247,123,235, thus inspires another resonance mode, to increase the bandwidth of operation of antenna ANT_1.
The result that support arm 11 is projected on second of substrate P CB1 is overlapping with support arm 23, the result that support arm 12 is projected on second of substrate P CB1 is overlapping with support arm 24, and the relation equal sized by the radio-frequency current flowing through support arm 11,12,23,24, direction is contrary, therefore the induced field of its radio-frequency current of can cancelling out each other.
Under the above operations, branch 111,247,123,235 can form a foreign current circulation, and branch 236,124,248,112 can form an internal current circulation, wherein two current cycle have the identical sense of current (such as, counterclockwise).The structure that branch is mutually symmetrical can make the size of current of two current cycle be evenly distributed.In addition, because the induced field of support arm 11,12,23,24 radio-frequency current is cancelled out each other, thus branch around region in induced field only provided by two current cycle.Therefore, antenna ANT_1 can be considered a magnetic loop antenna, is used for being arranged in near-field region with electric dipole antenna simultaneously, is not subject to interfering with each other and has good isolation.
It is noted that, in order to make two current cycle of magnetic loop antenna ANT_1 have the identical sense of current, two branches that single support arm is electrically connected must be formed at the different both sides of this support arm respectively.Or change an angle, if the direction extended with support arm is a symmetry axis, then, in the plane formed at this support arm, two branches that this support arm is electrically connected are formed at the different both sides of this symmetry axis respectively.For support arm 11, on the first surface of substrate P CB1, the branch 111,112 that support arm 11 is electrically connected is formed at the different both sides of symmetry axis of 135 degree of turning clockwise with direction X respectively.Otherwise, if two branch shape that single support arm is electrically connected are formed in the same side of this support arm, by the sense of current (such as, transferring clockwise direction to) of reversion internal current circulation.In the case, will two current cycle be made to have the contrary sense of current, cause its induced field to be offset each other, thus reduce the radiation efficiency of magnetic loop antenna ANT_1.
Please refer to Fig. 5, it is the perspective view of antenna ANT_4.As shown in Figure 5, structurally, antenna ANT_4 includes a feed-in section 55, is formed at two radiant bodies (respectively with dot pattern and blank to represent) of two up and down of substrate P CB2 respectively.Feed-in section 55 is used for feed-in one radiofrequency signal RF_2 to antenna ANT_4.Each radiant body includes three support arms and three branches, and between support arm adjacent between two, angle is 120 degree.The mode of operation of antenna ANT_1 and ANT_4 is close, as radiofrequency signal RF_2 to antenna ANT_4, three paths (dot pattern represents region) are divided into after the radiant body of radio-frequency current by feed-in section 55 feed-in first surface, each path flows to the end of branch along support arm, then by coupling effect, radio-frequency current is coupled to the branch (blank expression region) of second, is finally back to feed-in section 55 along the support arm of second.
Because the support arm of two being up and down formed at substrate P CB2 overlaps each other, and the relation equal sized by the radio-frequency current flowing through support arm, direction is contrary, therefore the induced field of its radio-frequency current of can cancelling out each other.
Under the above operations, three branches of antenna ANT_4 can form a current cycle, and wherein the sense of current of this current cycle can design according to the trend of branch, and the present embodiment is clockwise direction.Three branches of antenna ANT_4, with the central point of three support arm set, so can make the size of current of this current cycle be evenly distributed.In addition, because the induced field of the radio-frequency current of the support arm of antenna ANT_4 can cancel each other, thus three branches around region in induced field only provided by this current cycle.Therefore, antenna ANT_4 also can be considered a magnetic loop antenna, is used for being arranged in near-field region with electric dipole antenna simultaneously, is not subject to interfering with each other and has good isolation.
In brief, Anneta module 1 of the present invention is according to the different characteristic of small size antenna induced field sensitivity, magnetic loop antenna and electric dipole antenna is configured in near-field region, when the antenna space configuration of arranging in pairs or groups suitable, the annoyance level between multiple antenna can be made to be down to minimum, therefore the present invention can under the confined space, reduce the interference between multiple antenna and promote isolation, to maintain the data throughout of multiple-input and multiple-output, every Anneta module meeting above-mentioned framework all belongs to category of the present invention, those of ordinary skill in the art can changes in modification according to this, and be not limited to the present embodiment.
For example, the antenna amount that Anneta module comprises is not limit, as long as configure at least one magnetic loop antenna and at least one electric dipole antenna, and such as configurable single magnetic loop antenna and single electric dipole antenna, to support the multi-input multi-output system of 2X2, as IEEE802.11a/b/g system.In the preferred embodiment, the quantity of electric dipole antenna is more than or equal to the quantity of magnetic loop antenna.Preferably, an each adjacent at least one electric dipole antenna at least one magnetic loop antenna, such as in the embodiment of Anneta module 1, magnetic loop antenna ANT_1 is adjacent to each of electric dipole antenna ANT_2, ANT_3, and each of electric dipole antenna ANT_2, ANT_3 is not adjacent to each other.
In addition, Anneta module use antenna pattern (pattern) without specific restriction, as long as antenna space according to the invention configures.Such as, the electric dipole antenna of Anneta module can select among a dipole antenna, a folded dipole (foldeddipole) antenna and feed-in type in parallel (shunt-fed) dipole antenna one or more, if antenna ANT_5, ANT_6 are folded-diploe antenna, and antenna ANT_2, ANT_3 are feed-in dipole antenna in parallel.On the other hand, one or more among the magnetic loop antenna that the magnetic loop antenna of Anneta module can select tailored radiation body to have two support arms, three support arms and four support arms, if antenna ANT_1 is the magnetic loop antenna that tailored radiation body has two support arms, and ANT_4 is the magnetic loop antenna that tailored radiation body has three support arms.
Please refer to Fig. 6, it is the schematic diagram of another Anneta module 6 of the embodiment of the present invention.As shown in Figure 6, Anneta module 6 to 1 antenna space configure similar, it can be divided into two sub antenna modules, each sub antenna module has a magnetic loop antenna and to arrange in pairs or groups the configuration of two electric dipole antennas, therefore Anneta module 6 can support the multi-input multi-output system of two groups of 3X3 simultaneously, to improve data throughout.The difference of Anneta module 1 and 6 is, Anneta module 6 has selected tailored radiation body to have magnetic loop antenna ANT_1 ' and the ANT_4 ' of four support arms, this framework is also referred to as Alford annular (Alfordloop) antenna, be used for distinguishing transceiving radio frequency signal RF_1 and RF_2,2.4GHz and the 5GHz frequency range of such as IEEE802.11n system, but be not limited thereto.In addition, Anneta module 6 has selected dipole antenna ANT_5 ' and ANT_6 ' and folded-diploe antenna ANT_2 ' and ANT_3 '.Wherein, the length in the integrated antenna space of Anneta module 6 is 73 millimeters, is highly 22.6 millimeters, and width is 32.7 millimeters.
Please refer to Fig. 7 to Figure 10, Fig. 7 depicts the voltage standing wave ratio (VoltageStandingWaveRatio of antenna ANT_1 ' ~ ANT_6 ', hereinafter referred to as VSWR) schematic diagram, Fig. 8 depicts the isolation of antenna ANT_1 ' ~ ANT_3 ' in 2.4GHz frequency range; Fig. 9 depicts the isolation of antenna ANT_4 ' ~ ANT_6 ' in 5GHz frequency range; Figure 10 depicts the isolation of antenna ANT_1 ' ~ ANT_6 ' in 2.4GHz to 5GHz frequency range.
In the figure 7, antenna ANT_1 ' ~ ANT_3 ' represents with dotted line, dotted line and fine line respectively at the VSWR of 2.4GHz frequency range; Antenna ANT_4 ' ~ ANT_6 ' represents with dotted line, dotted line and fine line respectively at the VSWR of 5GHz frequency range.As seen from Figure 7, be all less than 2 at the VSWR waveform of 2.4GHz and 5GHz frequency range, therefore antenna ANT_1 ' ~ ANT_6 ' can work in 2.4GHz and 5GHz frequency range respectively.
In fig. 8, antenna ANT_1 ' is represented by dotted lines with the isolation of ANT_2 '; Antenna ANT_2 ' represents with dotted line with the isolation of ANT_3 '; Antenna ANT_1 ' represents with fine line with the isolation of ANT_3 '.As seen from Figure 8, the antenna ANT_1 ' ~ ANT_3 ' belonging to same sub antenna module is all less than-20dB at the isolation waveform of 2.4GHz frequency range, and therefore antenna ANT_1 ' ~ ANT_3 ' can have good isolation in 2.4GHz frequency range.
In fig .9, antenna ANT_4 ' is represented by dotted lines with the isolation of ANT_5 '; Antenna ANT_5 ' represents with dotted line with the isolation of ANT_6 '; Antenna ANT_4 ' represents with fine line with the isolation of ANT_6 '.As seen from Figure 9, the antenna ANT_4 ' ~ ANT_6 ' belonging to same sub antenna module is all less than-18dB at the isolation waveform of 5GHz frequency range, and therefore antenna ANT_4 ' ~ ANT_6 ' can have good isolation in 5GHz frequency range.
The isolation waveform that Figure 10 illustrates can be summarized as four groups of waveforms haply, shown in following form 1:
Form 1
For the antenna ANT_3 ' of first group and ANT_6 ' (representing with heavy line), the two electric dipole antenna that all symbolic animal of the birth year is of the same type, and close together each other, therefore be the poorest in four groups of antennas at the isolation of 2.4GHz and 5GHz frequency range.For the antenna ANT_3 ' of second group and ANT_5 ' (representing with fine line), although the two electric dipole antenna that all symbolic animal of the birth year is of the same type, but distant each other, therefore be better than the isolation of antenna ANT_3 ' and ANT_6 ' at the isolation of 2.4GHz and 5GHz frequency range.For the antenna ANT_2 ' of the 3rd group and ANT_4 ' (representing with dotted line), the two belongs to dissimilar eelctric dipole and magnetic loop antenna, although therefore the close isolation of the two distance is still better than electric dipole antenna ANT_3 ' of the same type and the isolation of ANT_6 '.For the antenna ANT_1 ' of the 4th group and ANT_5 ' (being represented by dotted lines), the two belongs to dissimilar eelctric dipole and magnetic loop antenna, and its groundwork frequency range difference (the groundwork frequency range of antenna ANT_1 ' is 2.4GHz, and the groundwork frequency range of antenna ANT_5 ' is 5GHz), although therefore the close isolation of the two distance is best in four groups of antennas.
Therefore, from the measurement of Fig. 7 to Figure 10, Anneta module 6 of the present invention configures magnetic loop antenna and electric dipole antenna in near-field region, when the antenna space configuration of arranging in pairs or groups suitable, the annoyance level between multiple antenna can be made to be down to minimum, therefore Anneta module 6 under the confined space, can support the multi-input multi-output system of two groups of 3X3, to improve data throughout simultaneously.
Further, please refer to Figure 11 to Figure 13, it depicts the radiation pattern figure of antenna ANT_1 ' ~ ANT_3 ' in 2.4GHz frequency range respectively, wherein the radiation pattern of antenna ANT_1 ' ~ ANT_3 ' represents with thick dashed line, dotted line, fine line respectively, and the compound of antenna ANT_1 ' ~ ANT_3 ' (composite) radiation pattern represents with heavy line.Can be found out by Figure 11 to Figure 13, the radiation pattern of electric dipole antenna ANT_2 ' and ANT_3 ' roughly in omnidirectional (omnidirectional) on vertical plane (i.e. X-Y plane) and horizontal plane (i.e. Y-Z plane, X-Z plane), and magnetic loop antenna ANT_1 ' also has the radiation pattern of omnidirectional on a vertical plane.With antenna ANT_1 ' ~ ANT_3 ' for single sub antenna module whole, it has the recombination radiation field pattern of omnidirectional on vertical and horizontal plane, to have good radiation efficiency.
Please refer to Figure 14 to Figure 16, it depicts the radiation pattern figure of antenna ANT_4 ' ~ ANT_6 ' in 5GHz frequency range, wherein the radiation pattern of antenna ANT_4 ' ~ ANT_6 ' represents with thick dashed line, dotted line, fine line respectively, and the recombination radiation field pattern of antenna ANT_4 ' ~ ANT_6 ' represents with heavy line.Can be found out by Figure 14 to Figure 16, the radiation pattern of electric dipole antenna ANT_5 ' and ANT_6 ' roughly in omnidirectional on vertical plane and horizontal plane, and magnetic loop antenna ANT_4 ' also has the radiation pattern of omnidirectional on a vertical plane.With antenna ANT_4 ' ~ ANT_6 ' for single sub antenna module whole, it has the recombination radiation field pattern of omnidirectional on vertical and horizontal plane, to have good radiation efficiency.
According to the measurement of Figure 11 to Figure 16, the average gain (that is, radiation efficiency) of antenna ANT_1 ' ~ ANT_6 ' and peak gain can be summarized as follows form 2:
Form 2
In sum, Anneta module of the present invention is according to the different characteristic of small size antenna induced field sensitivity, magnetic loop antenna and electric dipole antenna is configured in near-field region, when the antenna space configuration of arranging in pairs or groups suitable, the annoyance level between multiple antenna can be made to be down to minimum, therefore the present invention under the confined space, can reduce the interference between multiple antenna and promotes isolation, to promote the data throughout of multiple-input and multiple-output.In addition, the present invention proposes the magnetic loop antenna that tailored radiation body has two support arms, to be applied in above-mentioned Anneta module.
The foregoing is only preferred embodiment of the present invention, every equivalent variations of doing according to the scope of claims of the present invention and modification, all should belong to covering scope of the present invention.
Claims (19)
1. an antenna, this antenna comprises:
One substrate, this substrate comprises a first surface and one second;
One feed-in section, this feed-in section is formed at this first surface of this substrate, is used for transmission one radiofrequency signal;
One first radiant body, this first radiant body is electrically connected at this feed-in section, is formed at this first surface of this substrate, and this first radiant body comprises:
One first support arm, one end of this first support arm is electrically connected at this feed-in section, the other end is electrically connected at one first branch and one second branch, wherein this first support arm extends from the junction with this feed-in section towards a first direction, this first branch extends from this first support arm towards a second direction, and this second branch extends from this first support arm towards a third direction; And
One second support arm, one end of this second support arm is electrically connected at this feed-in section and this first support arm, the other end is electrically connected at one the 3rd branch and one the 4th branch, wherein this second support arm extends from the junction of this feed-in section and this first support arm opposite direction towards this first direction, 3rd branch extends from this second support arm towards the opposite direction of this second direction, and the 4th branch extends from this second support arm towards the opposite direction of this third direction; And
One second radiant body, this second radiant body is electrically connected at this feed-in section, and be formed at this second of this substrate, this second radiant body comprises:
One the 3rd support arm, one end of 3rd support arm is electrically connected at this feed-in section, the other end is electrically connected at a quintafurcation and one the 6th branch, wherein the 3rd support arm extends from the junction with this feed-in section towards this first direction, this quintafurcation extends from the 3rd support arm towards this third direction, and the 6th branch extends from the 3rd support arm towards this second direction; And
One the 4th support arm, one end of 4th support arm is electrically connected at this feed-in section and the 3rd support arm, the other end is electrically connected at one the 7th branch and one the 8th branch, wherein the 4th support arm extends from the junction of this feed-in section and the 3rd support arm opposite direction towards this first direction, 7th branch extends from the 4th support arm towards the opposite direction of this third direction, and the 8th branch extends from the 4th support arm towards the opposite direction of this second direction;
Wherein, this second direction is vertical with this third direction, and this first direction is this second direction turns clockwise the direction of 135 degree.
2. antenna as claimed in claim 1, to be wherein projected on this second of this substrate overlapping with the 3rd support arm for this first support arm, and it is overlapping with the 4th support arm that this second support arm is projected on this second of this substrate.
3. antenna as claimed in claim 1, wherein on a projection plane, this first branch is parallel to the 3rd, the 6th and the 8th branch, and this second branch is parallel to the 4th, the 5th and the 7th branch.
4. as claimed in claim 3 antenna, wherein this first, the 6th branch, this second, quintafurcation, the 3rd, the 8th branch, and between the 4th, the 7th branch on this projection plane respectively at a distance of one first distance.
5. antenna as claimed in claim 3, wherein on this projection plane, the end of this first, the 7th branch, and the 3rd, the end of quintafurcation is respectively at a distance of a second distance.
6. antenna as claimed in claim 3, wherein on this projection plane, this first, the 6th, the 7th, the 4th branch is a symmetry axis with this first direction, be symmetrical in the 5th respectively, second, third, the 8th branch.
7. antenna as claimed in claim 6, wherein on this first surface of this substrate, this first, second branch, the 3rd, the 4th branch is formed at the different both sides of this symmetry axis respectively; And on this second of this substrate, the 5th, the 6th branch, and the 7th, the 8th branch is formed at the different both sides of this symmetry axis respectively.
8. antenna as claimed in claim 1, wherein this feed-in section extends to a feed side by this first, second support arm towards a fourth direction, wherein this fourth direction is that this second direction turns clockwise the direction of 45 degree, and this fourth direction is perpendicular to this first direction.
9. antenna as claimed in claim 1, wherein this first to fourth support arm has one first length respectively, this the first, the 3rd, the 5th, the 7th branch has one second length respectively, and the summation of this first and second length is substantially equal to the quarter-wave of this radiofrequency signal.
10. antenna as claimed in claim 1, wherein consistent hole is formed in this substrate, is used for being electrically connected this first, second radiant body and this feed-in section.
11. antennas as claimed in claim 1, this antenna is a magnetic loop antenna.
12. 1 kinds of Anneta modules, this Anneta module is used for receiving and dispatching the radiofrequency signal corresponding to a working frequency range, and this Anneta module comprises:
At least one electric dipole antenna; And
At least one magnetic loop antenna, one wherein in this at least one magnetic loop antenna adjacent in this at least one electric dipole antenna;
Wherein this at least one electric dipole antenna and this at least one magnetic loop antenna are arranged at a wavelength of this radiofrequency signal with inner region, and one first polarised direction of this at least one magnetic loop antenna is perpendicular to one second polarised direction of this at least one electric dipole antenna.
13. Anneta modules as claimed in claim 12, wherein this magnetic loop antenna is an Alford loop aerial, or antenna as claimed in claim 1.
14. Anneta modules as claimed in claim 12, wherein this electric dipole antenna is a dipole antenna, a folded-diploe antenna or a feed-in dipole antenna in parallel.
15. Anneta modules as claimed in claim 12, also comprise:
At least one mechanism member, this at least one mechanism member is formed with this at least one electric dipole antenna; And
At least one substrate, of being formed in this at least one magnetic loop antenna wherein in this at least one substrate.
16. Anneta modules as claimed in claim 15, wherein this at least one mechanism member is the hollow cubic body of one side open, and this at least one substrate of part is arranged at this hollow cubic body inside.
17. Anneta modules as claimed in claim 16, comprise two these mechanism member, wherein this at least one substrate is fixed between this two mechanism member.
18. Anneta modules as claimed in claim 16, wherein this at least one mechanism member and this at least one substrate design, weld, paste or lock the modes such as screw by grab and fix.
19. Anneta modules as claimed in claim 12, wherein the quantity of this at least one electric dipole antenna is more than or equal to the quantity of this at least one magnetic loop antenna.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394469.8A CN105449374B (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
| CN201810117061.4A CN108183324A (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410394469.8A CN105449374B (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117061.4A Division CN108183324A (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105449374A true CN105449374A (en) | 2016-03-30 |
| CN105449374B CN105449374B (en) | 2018-05-04 |
Family
ID=55559319
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117061.4A Pending CN108183324A (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
| CN201410394469.8A Active CN105449374B (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117061.4A Pending CN108183324A (en) | 2014-08-12 | 2014-08-12 | Antenna and Anneta module |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108183324A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019179015A1 (en) * | 2018-03-19 | 2019-09-26 | 南京思追特电子科技有限公司 | Half-wave conductor array and construction method therefor |
| CN111201671A (en) * | 2017-10-11 | 2020-05-26 | 维斯普瑞公司 | Broadband phased mobile antenna array apparatus, system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1758481A (en) * | 2004-07-13 | 2006-04-12 | Tdk股份有限公司 | PxM antenna for high-power, broadband applications |
| US20090224990A1 (en) * | 2008-03-06 | 2009-09-10 | Qualcomm Incorporated | Methods and apparatus for supporting communications using a first polarization direction electrical antenna and a second polarization direction magnetic antenna |
| US20130044028A1 (en) * | 2011-08-17 | 2013-02-21 | CBF Networks, Inc. | Intelligent backhaul radio and antenna system |
| CN103843196A (en) * | 2011-09-02 | 2014-06-04 | 多康公司 | Single-sided multi-band antenna |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW310486B (en) * | 1996-03-22 | 1997-07-11 | Ind Tech Res Inst | Polarized universe Alford type loop antenna |
| CN1059761C (en) * | 1996-04-17 | 2000-12-20 | 财团法人工业技术研究院 | All direction horizontal-polarized band antenna |
| JP4910197B2 (en) * | 2008-03-19 | 2012-04-04 | Ｄｘアンテナ株式会社 | Antenna device |
| CN102280697A (en) * | 2011-04-21 | 2011-12-14 | 浙江大学宁波理工学院 | Double-Z-shaped microstrip antenna |
-
2014
- 2014-08-12 CN CN201810117061.4A patent/CN108183324A/en active Pending
- 2014-08-12 CN CN201410394469.8A patent/CN105449374B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1758481A (en) * | 2004-07-13 | 2006-04-12 | Tdk股份有限公司 | PxM antenna for high-power, broadband applications |
| US20090224990A1 (en) * | 2008-03-06 | 2009-09-10 | Qualcomm Incorporated | Methods and apparatus for supporting communications using a first polarization direction electrical antenna and a second polarization direction magnetic antenna |
| US20130044028A1 (en) * | 2011-08-17 | 2013-02-21 | CBF Networks, Inc. | Intelligent backhaul radio and antenna system |
| CN103843196A (en) * | 2011-09-02 | 2014-06-04 | 多康公司 | Single-sided multi-band antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201671A (en) * | 2017-10-11 | 2020-05-26 | 维斯普瑞公司 | Broadband phased mobile antenna array apparatus, system and method |
| WO2019179015A1 (en) * | 2018-03-19 | 2019-09-26 | 南京思追特电子科技有限公司 | Half-wave conductor array and construction method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108183324A (en) | 2018-06-19 |
| CN105449374B (en) | 2018-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9799963B2 (en) | Antenna system | |
| JP5548779B2 (en) | Antenna device | |
| CN104868228B (en) | Dual polarized antenna and aerial array | |
| TWI533522B (en) | Miniature antenna and antenna module thereof | |
| CN201655979U (en) | Combined type multi-input multi-output antenna module and system thereof | |
| US9099784B2 (en) | Array antenna of mobile terminal and implementing method thereof | |
| US20140313089A1 (en) | Multi-antenna system | |
| US8907857B2 (en) | Compact multi-antenna and multi-antenna system | |
| US9118117B2 (en) | Receiving and transmitting device for wireless transceiver | |
| CN206236793U (en) | Has the antenna system of high-isolation | |
| CN106463842A (en) | Antenna system using capacitively coupled compound loop antennas with antenna isolation provision | |
| JP3217955U (en) | Antenna architecture | |
| CN106159447B (en) | Smart antenna module and omnidirectional antenna | |
| CN105870597A (en) | Dual-antenna scheme sharing metal back cover | |
| JP2012244188A (en) | Multi-band-enabled multi-antenna device and communication device | |
| US11658412B2 (en) | Antenna and terminal | |
| TWI549365B (en) | Antenna array of hybrid radiator elements | |
| CN204407506U (en) | Hybrid radiant body antenna structure | |
| CN105449374A (en) | Antenna and antenna module | |
| CN204103048U (en) | Double frequency-band dual-polarized antenna | |
| CN102074786B (en) | Double-frequency printed circuit antenna for electronic device | |
| CN104681969A (en) | Hybrid radiator antenna structure | |
| CN203589203U (en) | Double-frequency single-feed antenna and double-frequency MiMo (Multiple Input Multiple Output) antenna | |
| TWI617092B (en) | Antenna unit and antenna system | |
| CN109149106A (en) | Broadband, high isolation MIMO loop antenna based on electromagnetic coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |