Summary of the invention
As mentioned above, the object of the present invention is to provide a kind of innovative design of super-broad band dipole antenna, can contain the required frequency band of super broadband system and (comprise 2 ~ 11GHz).
Super-broad band dipole antenna of the present invention comprises: one first radiation metal sleeve, its shape are roughly one and have the hollow cylinder of an end opening, and comprise a sealing surface relative with this opening, and have a perforate on this sealing surface; One second radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve and its opening direction and this first radiation metal sleeve is identical, this second radiation metal sleeve also comprises a sealing surface relative with this opening, and this sealing surface is positioned at this first radiation metal sleeve inner and has a perforate; One the 3rd radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface relative with this opening, and its opening direction is opposite with the opening direction of this first radiation metal sleeve, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve; One radiation metal wires, have an initiating terminal and an end, this initiating terminal is positioned at these perforate central authorities on this sealing surface of this second radiation metal sleeve, this perforate of should end then passing on this sealing surface of this first radiation metal sleeve stretches out, this radiation metal wires also comprises a load point, and this load point is positioned at this initiating terminal of this radiation metal wires; And a feed-in coaxial transmission line, be positioned at this second radiation metal sleeve inner, in order to transmission signal, comprise: a center conductor is connected to this load point of this radiation metal wires; And an outer earthing conductor, be connected to this verge of opening on this sealing surface of this second radiation metal sleeve.
In this design, this radiation metal wires and the 3rd radiation metal sleeve and the formed dipole antenna of this second radiation metal sleeve can produce a fundamental resonance mode and a plurality of high-order resonance mode, and by adjusting this radiation metal line length and this second and third radiation metal sleeve radius and length, the impedance matching of this fundamental resonance mode of may command and these a plurality of high-order resonance modes is in order to increase the impedance frequency range.Simultaneously, be added on the first radiation metal sleeve on this second radiation metal sleeve outward, can produce a plurality of resonance modes by its Electromagnetic Coupling Characteristic, and the frequency range of utilizing the radius of this first radiation metal sleeve and these a plurality of electromagnetic coupled resonance modes of length controlled system is to required operational frequency bands.In addition by changing this first radiation metal sleeve and mutual spacing and the radius size of this first radiation metal sleeve own of this second radiation metal sleeve, can change the capacity effect that is produced, can make the resonance mode in the antenna operation frequency band reach good impedance match through suitable adjustment, with above-mentioned dipole antenna fundamental frequency and the synthetic UWB (Ultra Wideband) Antenna characteristic of a plurality of high order mode.Because above-mentioned characteristic can be designed one and be applicable to super broadband system (2.1 ~ 11.7GHz) super-broad band dipole antenna.
According to another embodiment of the present invention, a kind of super-broad band dipole antenna is provided, has comprised: one first radiation metal sleeve, its shape are roughly a hollow cylinder with an end opening, and comprise a sealing surface relative, and on described sealing surface, has a perforate with described opening; One second radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and the described first radiation metal sleeve and its opening direction and the described first radiation metal sleeve is identical, the described second radiation metal sleeve also comprises a sealing surface relative with its opening, and this sealing surface is positioned at the described first radiation metal sleeve inner and has a perforate; One the 3rd radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and the described second radiation metal sleeve and its opening direction and the described second radiation metal sleeve is identical, described the 3rd radiation metal sleeve also comprises a sealing surface relative with its opening, and this sealing surface is positioned at the described second radiation metal sleeve inner and has a perforate; One the 4th radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface relative with its opening, and its opening direction is opposite with the opening direction of the described first radiation metal sleeve, and the bearing of trend almost parallel of its bearing of trend and the described first radiation metal sleeve; One radiation metal wires, have an initiating terminal and an end, described initiating terminal is positioned at the described perforate central authorities on the described sealing surface of described the 3rd radiation metal sleeve, the described perforate that described metal wire passes on the described sealing surface of described perforate on the described sealing surface of the described second radiation metal sleeve and the described first radiation metal sleeve stretches out, described end then is connected with the described sealing surface of described the 4th radiation metal sleeve, described radiation metal wires also comprises a load point, and described load point is positioned at the described initiating terminal of described radiation metal wires; And a feed-in coaxial transmission line, be positioned at described the 3rd radiation metal sleeve inner, in order to transmission signal, comprise: a center conductor is connected to the described load point of lawsuit radiation metal wires; And an outer earthing conductor, be connected to the described verge of opening on the described sealing surface of described the 3rd radiation metal sleeve.
According to still another embodiment of the invention, a kind of super-broad band dipole antenna is provided, has comprised: one first radiation metal sleeve, its shape are roughly a hollow cylinder with an end opening, and comprise a sealing surface relative, and on described sealing surface, has a perforate with described opening; One second radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and the described first radiation metal sleeve and its opening direction and the described first radiation metal sleeve is identical, the described second radiation metal sleeve also comprises a sealing surface relative with its opening, and this sealing surface is positioned at the described first radiation metal sleeve inner and has a perforate; One the 3rd radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and the described second radiation metal sleeve and its opening direction and the described second radiation metal sleeve is identical, described the 3rd radiation metal sleeve also comprises a sealing surface relative with its opening, and this sealing surface is positioned at the described second radiation metal sleeve inner and has a perforate; One the 4th radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface relative with its opening, and has a perforate on this sealing surface, and its opening direction is opposite with the opening direction of the described first radiation metal sleeve, its bearing of trend then with the bearing of trend almost parallel of the described first radiation metal sleeve; One the 5th radiation metal sleeve, its shape is roughly a hollow cylinder with an end opening, and the bearing of trend almost parallel of its bearing of trend and described the 4th radiation metal sleeve, and its opening direction is identical with the opening direction of described the 4th radiation metal sleeve, described the 5th radiation metal sleeve also comprises a sealing surface relative with its opening, and this sealing surface is positioned at described the 4th radiation metal sleeve inner; One radiation metal wires, have an initiating terminal and an end, described initiating terminal is positioned at the described perforate central authorities on the described sealing surface of described the 3rd radiation metal sleeve, described metal wire passes the described perforate on the described sealing surface of the described second radiation metal sleeve, and the described perforate on the described sealing surface of the described first radiation metal sleeve stretches out, described end then passes the described perforate on the described sealing surface of described the 4th radiation metal sleeve, be connected with the described sealing surface of described the 5th radiation metal sleeve, described radiation metal wires also comprises a load point, and described load point is positioned at the described initiating terminal of described radiation metal wires; And a feed-in coaxial transmission line, be positioned at described the 3rd radiation metal sleeve inner, in order to transmission signal, comprise: a center conductor is connected to the described load point of described radiation metal wires; And an outer earthing conductor, be connected to the described verge of opening on the described sealing surface of described the 3rd radiation metal sleeve.
Embodiment
Be illustrated in figure 2 as an embodiment 2 of super-broad band dipole antenna of the present invention, this super-broad band dipole antenna comprises: one first radiation metal sleeve 20, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface 201 relative, and on this sealing surface 201, has a perforate 202 with this opening; One second radiation metal sleeve 22, its shape is roughly a hollow cylinder with an end opening, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 20 and have the opening direction identical with this first radiation metal sleeve 20, this second radiation metal sleeve 22 also comprises a sealing surface 221 relative with this opening, and this sealing surface 221 is positioned at these first radiation metal sleeve, 20 inside and has a perforate 222; One the 3rd radiation metal sleeve 23, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface 231 relative with this opening, and its opening direction is opposite with the opening direction of this first radiation metal sleeve 20, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 20; One radiation metal wires 24, have an initiating terminal 241 and an end 242, this initiating terminal 241 is positioned at these perforate 222 central authorities on this sealing surface 221 of this second radiation metal sleeve 22, this perforate 202 that this metal wire 24 passes on this sealing surface 201 of this first radiation metal sleeve 20 stretches out, should then be connected by end 242 with this sealing surface 231 of the 3rd radiation metal sleeve 23, this radiation metal wires 24 also comprises a load point 243, and this load point 243 is positioned at this initiating terminal 241 of this radiation metal wires 24; And a feed-in coaxial transmission line 25, be positioned at this second radiation metal sleeve, 22 inside, in order to transmission signal, this feed-in coaxial transmission line 25 comprises: a center conductor 251 is connected to this load point 243 of this radiation metal wires 24; And an outer earthing conductor 252, be connected to these perforate 222 edges on this sealing surface 221 of this second radiation metal sleeve 22.And in present embodiment 2, the diameter of this first radiation metal sleeve 20 greater than the outer wall of the inwall of the diameter of this second radiation metal sleeve 22 and this first radiation metal sleeve 20 and this second radiation metal sleeve 22 for being connected.And this second radiation metal sleeve 22 can produce a fundamental resonance mode and a plurality of high-order resonance mode with this radiation metal wires 24 and the 3rd radiation metal sleeve 23 formed dipole antennas, and utilize the length of this radiation metal wires 24 and the radius and the length of this second and the 3rd radiation metal sleeve, the impedance matching of this fundamental resonance mode of may command and these a plurality of high-order resonance modes.And be added on the first radiation metal sleeve 20 on this second radiation metal sleeve 22 outward, because of its Electromagnetic Coupling Characteristic can produce a plurality of resonance modes, and can utilize the radius of this first radiation metal sleeve 20 and frequency range that length is controlled these a plurality of electromagnetic coupled resonance modes to required operational frequency bands.In addition by changing the mutual spacing of this first radiation metal sleeve 20 and this second radiation metal sleeve 22, can suitably adjust the capacity effect that it produced, make the resonance mode in the antenna operation frequency band can reach good impedance match, form a UWB (Ultra Wideband) Antenna characteristic.
For the composition structure of more convenient understanding antenna of the present invention, be illustrated in figure 3 as the exploded view of super-broad band dipole antenna one embodiment 2 of the present invention (with reference to figure 2), the first radiation metal sleeve 20 and the second radiation metal sleeve 22 are for separating up and down in figure; And the 3rd radiation metal sleeve 23 and radiation metal wires 24 are also for separating up and down; This radiation metal wires 24 then is positioned on the relative position with this first radiation metal sleeve 20, and 25 of feed-in coaxial transmission lines are to be positioned at this second radiation metal sleeve, 22 inside.
Fig. 4 returns the loss experimental result for an embodiment's 2 of antenna of the present invention; 41 of curves are the super wideband operational frequency bands of this antenna among the figure, can obtain this embodiment in 3 by experimental result: the definition of 1VSWR (voltage standing wave ratio) impedance frequency range down, its frequency range can reach about 9.6GHz (2.1-11.7GHz), can satisfy the frequency range demand of super broadband system frequency band at present easily.
Fig. 5 is the structure chart of another embodiment 5 of antenna of the present invention, comprise: one first radiation metal sleeve 50, its shape is roughly one and has the hollow cylinder of an end opening, and comprises a sealing surface 501 relative with this opening, and has a perforate 502 on this sealing surface 501; One second radiation metal sleeve 52, its shape is roughly a hollow cylinder with an end opening, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 50 and have the opening direction identical with this first radiation metal sleeve 50, this second radiation metal sleeve 52 also comprises a sealing surface 521 relative with this opening, and this sealing surface 521 is positioned at these first radiation metal sleeve, 50 inside and has a perforate 522; One the 3rd radiation metal sleeve 53, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface 531 relative with this opening, and its opening direction is opposite with the opening direction of this first radiation metal sleeve 50, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 50; One radiation metal wires 54, have an initiating terminal 541 and an end 542, this initiating terminal 541 is positioned at these perforate 522 central authorities on this sealing surface 521 of this second radiation metal sleeve 52, this perforate 502 that this metal wire 54 passes on this sealing surface 501 of this first radiation metal sleeve 50 stretches out, should then be connected by end 542 with this sealing surface 531 of the 3rd radiation metal sleeve 53, this radiation metal wires 54 also comprises a load point 543, and this load point 543 is positioned at this initiating terminal 541 of this radiation metal wires 54; And a feed-in coaxial transmission line 55, be positioned at this second radiation metal sleeve, 52 inside, in order to transmission signal, it comprises: a center conductor 551 is connected to this load point 543 of this radiation metal wires 54; And an outer earthing conductor 552, be connected to these perforate 522 edges on this sealing surface 521 of this second radiation metal sleeve 52.And in present embodiment 5, the diameter of this first radiation metal sleeve 50 is not connected with the outer wall of this second radiation metal sleeve 52 greater than the diameter of this second radiation metal sleeve 52 and the inwall of this first radiation metal sleeve 50.And this second radiation metal sleeve 52 can produce a fundamental resonance mode and a plurality of high-order resonance mode with this radiation metal wires 54 and the 3rd radiation metal sleeve 53 formed dipole antennas, and utilize the length of this radiation metal wires 54 and the radius and the length of this second and third radiation metal sleeve, the impedance matching of this fundamental resonance mode of may command and these a plurality of high-order resonance modes.And be added on the first radiation metal sleeve 50 on this second radiation metal sleeve 52 outward, because of its Electromagnetic Coupling Characteristic can produce a plurality of resonance modes, and can utilize the radius of this first radiation metal sleeve 50 and frequency range that length is controlled these a plurality of electromagnetic coupled resonance modes to required operational frequency bands.In addition by changing the mutual spacing of this first radiation metal sleeve 50 and this second radiation metal sleeve 52, can suitably adjust the capacity effect that it produced, make the resonance mode in the antenna operation frequency band can reach good impedance match, form a UWB (Ultra Wideband) Antenna characteristic.
Fig. 6 is the structure chart of another embodiment 6 of antenna of the present invention, this embodiment 6 is embodiment 2 and the execution mode that combines of embodiment 5, comprise: one first radiation metal sleeve 60, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface 601 relative, and on this sealing surface 601, has a perforate 602 with this opening; One second radiation metal sleeve 62, its shape is roughly a hollow cylinder with an end opening, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 60 and have the opening direction identical with this first radiation metal sleeve 60, this second radiation metal sleeve 62 also comprises a sealing surface 621 relative with this opening, and this sealing surface 621 is positioned at these first radiation metal sleeve, 60 inside and has a perforate 622; One the 3rd radiation metal sleeve 63, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and this second radiation metal sleeve 62 and its opening direction and this second radiation metal sleeve 62 is identical, the 3rd radiation metal sleeve 63 also comprises a sealing surface 631 relative with this opening, and this sealing surface 631 is positioned at these second radiation metal sleeve, 62 inside and has a perforate 632; One the 4th radiation metal sleeve 64, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface 641 relative with this opening, and its opening direction is opposite with the opening direction of this first radiation metal sleeve 60, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 60; One radiation metal wires 65, have an initiating terminal 651 and an end 652, this initiating terminal 651 is positioned at these perforate 632 central authorities on this sealing surface 631 of the 3rd radiation metal sleeve 63, this perforate 602 that this metal wire 65 passes on this sealing surface 601 of this perforate 622 on this sealing surface 621 of this second radiation metal sleeve 62 and this first radiation metal sleeve 60 stretches out, should then be connected by end 652 with this sealing surface 641 of the 4th radiation metal sleeve 64, this radiation metal wires 65 also comprises a load point 653, and this load point 653 is positioned at this initiating terminal 651 of this radiation metal wires 65; And a feed-in coaxial transmission line 66, be positioned at the 3rd radiation metal sleeve 63 inside, in order to transmission signal, it comprises: a center conductor 661 is connected to this load point 653 of this radiation metal wires 65; And an outer earthing conductor 662, be connected to these perforate 632 edges on this sealing surface 631 of the 3rd radiation metal sleeve 63.And in present embodiment 6, the diameter of this first radiation metal sleeve 60 greater than the outer wall of the inwall of the diameter of this second radiation metal sleeve 62 and this first radiation metal sleeve 60 and this second radiation metal sleeve 6 for not being connected.And the diameter of this second radiation metal sleeve 62 greater than the outer wall of the inwall of the diameter of the 3rd radiation metal sleeve 63 and this second radiation metal sleeve 62 and the 3rd radiation metal sleeve 63 for being connected.The 3rd radiation metal sleeve 63 can produce a fundamental resonance mode and a plurality of high-order resonance mode with this radiation metal wires 65 and the 4th radiation metal sleeve 64 formed dipole antennas, and utilize the length of this radiation metal wires 65 and the radius and the length of this second and the 4th radiation metal sleeve, the impedance matching of this fundamental resonance mode of may command and these a plurality of high-order resonance modes.And be added on the first radiation metal sleeve 60 and the second radiation metal sleeve 62 on the 3rd radiation metal sleeve 63 outward, because of its Electromagnetic Coupling Characteristic can produce a plurality of resonance modes, and can utilize the radius of this first radiation metal sleeve 60 and this second radiation metal sleeve 62 and frequency range that length is controlled these a plurality of electromagnetic coupled resonance modes to required operational frequency bands.In addition by changing the mutual spacing of this first radiation metal sleeve 60 and this second radiation metal sleeve 62 and this second radiation metal sleeve 62 and the 3rd radiation metal sleeve 63 and the radius size of this first and second radiation metal sleeve, can suitably adjust the capacity effect that it produced, make the resonance mode in the antenna operation frequency band can reach good impedance match, form a UWB (Ultra Wideband) Antenna characteristic.
Fig. 7 is the structure chart of other embodiment 7 of antenna of the present invention, comprise: one first radiation metal sleeve 70, its shape is roughly one and has the hollow cylinder of an end opening, and comprises a sealing surface 701 relative with this opening, and has a perforate 702 on this sealing surface 701; One second radiation metal sleeve 72, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 70 and its opening direction and this first radiation metal sleeve 70 is identical, this second radiation metal sleeve 72 also comprises a sealing surface 721 relative with this opening, and this sealing surface 721 is positioned at these first radiation metal sleeve, 70 inside and has a perforate 722; One the 3rd radiation metal sleeve 73, its shape is roughly a hollow cylinder with an end opening, and the opening direction of the bearing of trend almost parallel of its bearing of trend and this second radiation metal sleeve 72 and its opening direction and this second radiation metal sleeve 72 is identical, the 3rd radiation metal sleeve 73 also comprises a sealing surface 731 relative with this opening, and this sealing surface 731 is positioned at these second radiation metal sleeve, 72 inside and has a perforate 732; One the 4th radiation metal sleeve 74, its shape is roughly a hollow cylinder with an end opening, and comprise a sealing surface 741 relative with this opening, and its opening direction is opposite with the opening direction of this first radiation metal sleeve 70, and the bearing of trend almost parallel of its bearing of trend and this first radiation metal sleeve 70; One the 5th radiation metal sleeve 75, its shape is roughly a hollow cylinder with an end opening, and the bearing of trend almost parallel of its bearing of trend and the 4th radiation metal sleeve 74, and its opening direction is identical with the opening direction of the 4th radiation metal sleeve 74, the 5th radiation metal sleeve 75 also comprises a sealing surface 751 relative with this opening, and this sealing surface is positioned at the 4th radiation metal sleeve inner; One radiation metal wires 76, have an initiating terminal 761 and an end 762, this initiating terminal 761 is positioned at these perforate 732 central authorities on this sealing surface 731 of the 3rd radiation metal sleeve 73, this perforate 702 that this metal wire 76 passes on this sealing surface 701 of this perforate 722 on this sealing surface 721 of this second radiation metal sleeve 72 and this first radiation metal sleeve 70 stretches out, should end 762 then pass this perforate 742 on this sealing surface 741 of the 4th radiation metal sleeve 74, be connected with the sealing surface 651 of the 5th radiation metal sleeve 65, this radiation metal wires 76 also comprises a load point 763, and this load point 763 is positioned at this initiating terminal 761 of this radiation metal wires 76; And a feed-in coaxial transmission line 77, be positioned at the 3rd radiation metal sleeve 73 inside, in order to transmission signal, comprise: a center conductor 771 is connected to this load point 763 of this radiation metal wires 76; And an outer earthing conductor 772, be connected to these perforate 732 edges on this sealing surface 731 of the 3rd radiation metal sleeve 73.And in present embodiment 7, the diameter of this first radiation metal sleeve 70 is greater than the diameter of this second radiation metal sleeve 72, and the diameter of this second radiation metal sleeve 72 is greater than the diameter of the diameter of the 3rd radiation metal sleeve 73 and the 4th radiation metal sleeve 74 diameter greater than the 5th radiation metal sleeve 75, and the outer wall of the inwall of this first radiation metal sleeve 70 and this second radiation metal sleeve 72 is not for being connected, the inwall of this second radiation metal sleeve 72 and the outer wall of the 3rd radiation metal sleeve 73 be then for being connected, and the outer wall of the inwall of the 4th radiation metal sleeve 74 and the 5th radiation metal sleeve 75 is for being connected.And the 3rd radiation metal sleeve 73 can produce a fundamental resonance mode and a plurality of high-order resonance mode with this radiation metal wires 76 and the 5th radiation metal sleeve 75 formed dipole antennas, and utilize the length of this radiation metal wires 76 and the radius and the length of the 3rd and the 5th radiation metal sleeve, the impedance matching of this fundamental resonance mode of may command and these a plurality of high-order resonance modes.And be added on this first radiation metal sleeve 70 and this second radiation metal sleeve 72 on the 3rd radiation metal sleeve 73 outward, and be added on the 4th radiation metal sleeve 74 on the 5th radiation metal sleeve 75 outward, because of its Electromagnetic Coupling Characteristic can produce a plurality of resonance modes, and can utilize the radius of this first radiation metal sleeve 70 and this second radiation metal sleeve 72 and frequency range that length is controlled these a plurality of electromagnetic coupled resonance modes to required operational frequency bands.In addition by changing the mutual spacing of the mutual spacing of the mutual spacing of this first radiation metal sleeve 70 and this second radiation metal sleeve 72, this second radiation metal sleeve 72 and the 3rd radiation metal sleeve 73, the 4th radiation metal sleeve 74 and the 5th radiation metal sleeve 75 and the radius size of this first radiation metal sleeve 70, the second radiation metal sleeve 72 and the 4th radiation metal sleeve 74, can suitably adjust the capacity effect that it produced, make the resonance mode in the antenna operation frequency band can reach good impedance match, form a UWB (Ultra Wideband) Antenna characteristic.
Only be explanation principle of the present invention and effect thereof at the embodiment described in the present invention's explanation, and unrestricted the present invention.Therefore, practise in the personage of this technology and can make amendment to the foregoing description without prejudice to spirit of the present invention and change.Interest field of the present invention should be listed as claim.