CN213460093U

CN213460093U - Multi-radiator antenna and electronic equipment

Info

Publication number: CN213460093U
Application number: CN202022876709.1U
Authority: CN
Inventors: 曲龙跃; 张爱梅; 朴海燕; 吕俊鹏; 曹容俊; 穆阳阳; 蓝晓羿; 刘扬
Original assignee: Shenzhen Hanyang Antenna Design Co ltd
Current assignee: Shenzhen Hanyang Antenna Design Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-06-15
Anticipated expiration: 2030-12-04

Abstract

The utility model belongs to the technical field of the antenna among the radio communication transmission, a multi-radiator antenna is disclosed, include: the antenna comprises a feed circuit, a signal wire, a ground wire, a first radiator, M second radiators and a third radiator which are laid on a printed circuit board, wherein M is a positive integer; one end of the feed circuit is connected with the signal wire, and the other end of the feed circuit is connected with the first radiator; one end of the signal wire is connected with the feed circuit, and the other end of the signal wire is connected with the third radiator; the M second radiators are arranged on a path of the signal line between the first radiator and the third radiator; two adjacent radiators are connected through a ground wire group, one ground wire group comprises two ground wires, the two ground wires are respectively arranged on two sides of the signal wire and are provided with gaps with the signal wire, and each ground wire group and the signal wire form a coplanar waveguide. The utility model discloses an antenna can realize high-gain, all-round radiation.

Description

Multi-radiator antenna and electronic equipment

Technical Field

The utility model relates to an antenna technology field in the radio communication transmission, in particular to many radiator antennas with high gain and all-round radiation characteristic.

Background

Antennas have become an integral device in various wireless devices for transmitting and receiving electromagnetic wave signals for communication purposes. The dipole antenna is the antenna with the simplest structure, better performance and the most extensive application. A conventional dipole antenna is composed of a pair of symmetrically disposed conductors (dipoles), and both ends of the dipoles close to each other are connected to a feed circuit, respectively. A conventional dipole antenna is composed of two coaxial straight wires, and the two coaxial straight wires can be developed into more complex shapes (cage antenna, batwing antenna, etc.) according to actual requirements.

Fig. 1 shows a schematic structure of a conventional dipole antenna. The feed circuit 103 is located between the first element 101 and the second element 102 for connecting the two elements. Theoretically, the length of the first transducer 101 is equal to the length of the second transducer 102, and omnidirectional radiation is performed at a resonance frequency. The most common dipole antenna is a half-wave antenna, i.e. both elements are approximately a quarter wavelength in length. Although the conventional dipole antenna has a characteristic of omni-directional radiation, the gain is low and the distance for transmitting and receiving signals is limited.

With the popularization and application of the internet of things and a fifth-generation communication system, the novel antenna technology needs to have the characteristics of wide coverage rate, high communication speed and the like, so that the requirements on the antenna technology with high gain and all-directional radiation are met. The high-gain antenna enables the propagation distance of signals to be longer and the penetrability and the anti-interference capability to be stronger by improving the directivity of the antenna. However, the conventional high-gain antenna (such as a patch antenna and a horn antenna) increases the gain by sacrificing the omnidirectional characteristics of the antenna, and thus is almost only effective right ahead, has a narrow beam and a small coverage, and thus cannot meet the requirements of various wireless terminal products, particularly WiFi6 products and the like. Therefore, there is a need for an antenna with high gain and omni-directional radiation characteristics to meet the increasing demand of end products and increase the communication rate.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a multi-radiator antenna to dipole antenna gain is lower among the solution prior art, the limited problem of distance of transmission and received signal. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, a multi-radiator antenna is provided.

In some alternative embodiments, a multi-radiator antenna, comprises:

the antenna comprises a feed circuit 200, a signal wire 201, a ground wire, a first radiator, M second radiators and a third radiator, wherein the feed circuit, the signal wire 201, the ground wire, the first radiator, the M second radiators and the third radiator are laid on a printed circuit board, and M is a positive integer; wherein the content of the first and second substances,

one end of the feed circuit 200 is connected with the signal line 201, and the other end is connected with the first radiator;

one end of the signal line 201 is connected with the feed circuit 200, and the other end is connected with the third radiator;

the M second radiators are arranged on a path of the signal line 201 between the first radiator and the third radiator;

two adjacent radiators are connected through a ground wire group, one ground wire group comprises two ground wires, the two ground wires are respectively arranged on two sides of the signal wire 201 and are provided with gaps with the signal wire 201, and each ground wire group and the signal wire form a coplanar waveguide.

Optionally, in any one of the coplanar waveguides, the current distribution of the two ground lines is the same, and both the current distribution of the two ground lines are opposite to the current distribution of the signal line 201; the coplanar waveguide operates at N wavelengths, N being a positive integer.

Optionally, the first radiator includes a first element 211, a second element 212, and a third element 213, the second radiator includes a fourth element 214, a fifth element 215, a sixth element 216, and a seventh element 217, and the third radiator includes an eighth element 218, a ninth element 219, and a tenth element 220;

the first ground line group comprises a first ground line 202a and a second ground line 202b, and is used for connecting adjacent first radiating bodies and second radiating bodies; the second ground set comprises a third ground wire 203a and a fourth ground wire 203b, and is used for connecting the adjacent second radiator and the third radiator;

one end of the first ground line 202a is connected to the first oscillator 211 in the first radiator, and the other end is connected to the sixth oscillator 216 in the second radiator; one end of the second ground 202b is connected to the second oscillator 212 in the first radiator, and the other end is connected to the seventh oscillator 217 in the second radiator;

one end of the third ground line 203a is connected to the fourth oscillator 214 in the second radiator, and the other end is connected to the eighth oscillator 218 in the third radiator; one end of the fourth ground line 203b is connected to the fifth oscillator 215 in the second radiator, and the other end is connected to the ninth oscillator 219 in the third radiator;

one end of the signal line 201 is connected to the feed circuit 200, and the other end is connected to the tenth radiator 220 in the third radiator;

one end of the feed circuit is connected to the signal line 201, and the other end is connected to the third oscillator 213 in the first radiator.

Optionally, the multi-radiator antenna further includes M-1 third ground groups, M is greater than or equal to 2, each third ground group includes a fifth ground and a sixth ground, and the third ground group is used for connecting two adjacent second radiators;

one end of the fifth ground wire is connected with the fourth vibrator of the first-stage second radiator, and the other end of the fifth ground wire is connected with the sixth vibrator of the second radiator of the next stage;

one end of the sixth ground wire is connected with the fifth vibrator of the upper-stage second radiator, and the other end of the sixth ground wire is connected with the seventh vibrator of the lower-stage second radiator.

Optionally, the first oscillator 211 and the second oscillator 212 are both L-shaped and mirror-symmetrical with respect to the signal line 201, and the third oscillator 213 is an inverted U-shaped;

the fourth vibrator 214 and the fifth vibrator 215 are both L-shaped and mirror-symmetrical with respect to the signal line 201, and the sixth vibrator 216 and the seventh vibrator 217 are both inverted L-shaped and mirror-symmetrical with respect to the signal line 201;

the eighth transducer 218 and the ninth transducer 219 are each inverted L-shaped and mirror-symmetrical with respect to the signal line 201, and the tenth transducer 220 is U-shaped.

Optionally, vertical sides and horizontal sides of the first, second, fourth, fifth, sixth, seventh, eighth, and

ninth oscillators

211, 212, 214, 215, 216, 217, 218, and 219 are all on the outside;

a first radiator and a second radiator which are adjacent to each other, a lateral terminal of the first element 211 of the first radiator and a lateral terminal of the sixth element 216 of the second radiator are connected through the first ground 202a, and a lateral terminal of the second element 212 of the first radiator and a lateral terminal of the seventh element 217 of the second radiator are connected through the second ground 202 b;

and a transverse terminal of the fourth vibrator 214 of the second radiator and a transverse terminal of the eighth vibrator of the third radiator are connected through a third ground line 203a, and a transverse terminal of the fifth vibrator 215 of the second radiator and a transverse terminal of the ninth vibrator of the third radiator are connected through a fourth ground line 203 b.

Optionally, the multi-radiator antenna further comprises a capacitive element or an inductive element or a combination of a capacitive element and an inductive element.

Optionally, the first radiator, the second radiator, or the third radiator further includes a capacitive element, an inductive element, or a combination of the capacitive element and the inductive element.

Optionally, any one of the coplanar waveguides further comprises a capacitive element or an inductive element or a combination of a capacitive element and an inductive element.

According to a second aspect of the embodiments of the present invention, there is provided an electronic apparatus.

In some alternative embodiments, the electronic device comprises the multi-radiator antenna of any of the alternative embodiments described above.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

(1) the antenna can realize the characteristics of high gain and all-directional radiation, has the advantages of wide signal coverage rate, high communication speed, long propagation distance and the like, and has wider application prospect.

(2) The coplanar waveguide (CPW) is used for connecting a plurality of radiating bodies, and the method can be realized by a circuit board printing technology, is favorable for reducing the manufacturing cost, simplifying the manufacturing process, shortening the manufacturing period and improving the product yield.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural view of a conventional dipole antenna;

fig. 2a is a schematic structural diagram of a multi-radiator antenna according to an exemplary embodiment;

fig. 2b is a schematic structural diagram of a multi-radiator antenna according to an exemplary embodiment;

fig. 2c is a schematic view of a current distribution produced by a multi-radiator antenna according to an exemplary embodiment;

fig. 2d is a schematic structural diagram of a multi-radiator antenna according to an exemplary embodiment;

fig. 3a is a schematic structural diagram of a multi-radiator antenna shown in accordance with an exemplary embodiment;

fig. 3b is a schematic structural diagram of a multi-radiator antenna shown in accordance with an exemplary embodiment;

fig. 3c is a schematic structural diagram of a multi-radiator antenna according to an exemplary embodiment;

fig. 3d is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3e is a schematic structural diagram of a multi-radiator antenna according to an exemplary embodiment;

fig. 3f is a schematic structural diagram of a multi-radiator antenna shown in accordance with an exemplary embodiment;

fig. 3g is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3h is a schematic structural diagram of a multi-radiator antenna according to an exemplary embodiment;

fig. 3i is a schematic structural diagram of a multi-radiator antenna shown according to an exemplary embodiment;

fig. 3j is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3k is a schematic structural diagram of a multi-radiator antenna shown in accordance with an exemplary embodiment;

fig. 3l is a schematic diagram of a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3m is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3n is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3o is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 3p is a schematic diagram illustrating the structure of a multiple radiator antenna according to an exemplary embodiment;

fig. 3q is a schematic diagram illustrating a structure of a multi-radiator antenna according to an exemplary embodiment;

fig. 4 is an S-parameter plot of a multi-radiator antenna shown in accordance with an exemplary embodiment;

fig. 5 is a radiation diagram illustrating a multi-radiator antenna according to an exemplary embodiment;

reference numerals:

1. a first radiator; 2. a second radiator; 3. a third radiator; 6. a ground wire group; 200. a feed circuit; 201. a signal line; 211. a first vibrator; 212. a second vibrator; 213. a third vibrator; 214. a fourth vibrator; 215. a fifth vibrator; 216. a sixth vibrator; 217. a seventh oscillator; 218. an eighth vibrator; 219. a ninth oscillator; 220. a tenth oscillator; 202a, a first ground line; 202b, a second ground line; 203a, a third ground line; 203b, fourth ground line.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments herein includes the full ambit of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like, herein are used solely to distinguish one element from another without requiring or implying any actual such relationship or order between such elements. In practice, a first element can also be referred to as a second element, and vice versa. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a structure, device or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein, as used herein, are defined as orientations and positional relationships based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, and indirect connections via intermediary media, where the specific meaning of the terms is understood by those skilled in the art as appropriate.

Herein, the term "plurality" means two or more, unless otherwise specified.

Herein, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B represents: a or B.

Herein, the term "and/or" is an associative relationship describing objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

Fig. 2a shows an alternative embodiment of the multi-radiator antenna of the present invention.

In this alternative embodiment, the multi-radiator antenna includes: the printed circuit board comprises a feed circuit 200, a signal line 201, a ground line, a first radiator 1, M second radiators 2 and a third radiator 3, wherein M is a positive integer, and the parts (namely the feed circuit, the signal line, the ground line, the first radiator, the second radiator and the third radiator) are laid on a Printed Circuit Board (PCB). One end of the feed circuit 200 is connected to the signal line 201, and the other end is connected to the first radiator 1 for feeding RF signals; one end of the signal line 201 is connected with the feed circuit 200, and the other end is connected with the third radiator 3; the M second radiators 2 are disposed on a path of the signal line 201 between the first radiator 1 and the third radiator 3; two adjacent radiators are connected through a ground group 6, one ground group 6 includes two ground wires, the two ground wires are respectively disposed on two sides of the signal line 201 and have a gap with the signal line, each ground group 6 and the signal line 201 form a coplanar waveguide, and the plurality of coplanar waveguides share the signal line 201. Each ground line is closely spaced from the signal line 202 by a gap, which is typically much less than one wavelength, and preferably less than 0.02 wavelength. The coplanar waveguide is used as a transmission line with a planar structure for transmitting signals and uniformly distributing energy to the first radiator, the M second radiators and the third radiator, so that the effect of signal superposition is achieved, and the omni-directional radiation characteristic is maintained while the directivity is enhanced.

Alternatively, in any one of the above coplanar waveguides, the characteristic impedance of the coplanar waveguide is adjusted by adjusting any one or any plurality of the width of the signal line 201, the distance between one ground line in the ground line group of the coplanar waveguide and the signal line 201, and the distance between another ground line in the ground line group of the coplanar waveguide and the signal line 201.

Alternatively, two ground lines in the same ground line group are respectively located on two sides of the signal line 201 and are symmetrically arranged with respect to the signal line 201.

Optionally, in any one of the coplanar waveguides, the current distribution of the two ground lines is the same, and both the current distribution of the two ground lines are opposite to the current distribution of the signal line 201; the coplanar waveguide works at N wavelengths, wherein N is a positive integer, so that the current distribution directions of two adjacent radiators are consistent. When N is 1, the coplanar waveguide operates at 1 wavelength.

Fig. 2b shows an alternative embodiment of the multi-radiator antenna of the present invention.

As shown in fig. 2b, in this alternative embodiment, the multi-radiator antenna includes a feeding circuit 200, a signal line 201, a ground line, a first radiator 1, a second radiator 2, and a third radiator 3, where M is 1, and the second radiator 2 is disposed on the path of the signal line 201 between the first radiator 1 and the third radiator 3. The first radiator 1 includes a first vibrator 211, a second vibrator 212, and a third vibrator 213, the second radiator 2 includes a fourth vibrator 214, a fifth vibrator 215, a sixth vibrator 216, and a seventh vibrator 217, and the third radiator 3 includes an eighth vibrator 218, a ninth vibrator 219, and a tenth vibrator 220; the first radiator 1 and the second radiator 2 are connected through a first ground wire group, and the first ground wire group comprises a first ground wire 202a and a second ground wire 202 b; the second radiator 2 and the third radiator 3 are connected by a second ground group including a third ground 203a and a fourth ground 203 b. The first ground wire 202a and the second ground wire 202b are respectively arranged on two sides of the signal wire 201 and have a gap with the signal wire 201, the third ground wire 203a and the fourth ground wire 203b are respectively arranged on two sides of the signal wire 201 and have a gap with the signal wire 201, the first ground wire 202a, the second ground wire 202b and the signal wire 201 form a coplanar waveguide, the third ground wire 203a, the fourth ground wire 203b and the signal wire 201 form a coplanar waveguide, and the two coplanar waveguides share the signal wire 201. A gap is provided between the first ground line 202a, the second ground line 202b, the third ground line 203a, or the fourth ground line 203b and the signal line 202, and the gap is small, and the gap is usually much smaller than one wavelength, and preferably, the gap is smaller than 0.02 wavelength.

Alternatively, the first ground line 202a and the second ground line 202b are respectively located on both sides of the signal line 201 and are symmetrically disposed with respect to the signal line 201. Alternatively, the third ground line 203a and the fourth ground line 203b are respectively located on both sides of the signal line 201 and are symmetrically disposed with respect to the signal line 201.

As shown in fig. 2b, in this alternative embodiment, one end of the first ground line 202a is connected to the first oscillator 211 in the first radiator, and the other end is connected to the sixth oscillator 216 in the second radiator; one end of the second ground 202b is connected to the second oscillator 212 in the first radiator, and the other end is connected to the seventh oscillator 217 in the second radiator; one end of the third ground line 203a is connected to the fourth oscillator 214 in the second radiator, and the other end is connected to the eighth oscillator 218 in the third radiator; the fourth ground line 203b has one end connected to the fifth element 215 of the second radiator and the other end connected to the ninth element 219 of the third radiator. One end of the signal line 201 is connected with the feed circuit 200, and the other end is connected with the tenth oscillator 220 in the third radiator; the feed circuit 200 has one end connected to the signal line 201 and the other end connected to the third element 213 in the first radiator.

In an alternative embodiment shown in fig. 2b, the feeding circuit 200, the signal line 201, the first ground line 202a, the second ground line 202b, the third ground line 203a, the fourth ground line 203b, the first radiator 1, the second radiator 2 and the third radiator 3 are laid on a Printed Circuit Board (PCB). Alternatively, the feeding circuit 200, the signal line 201, the first ground line 202a, the second ground line 202b, the third ground line 203a, the fourth ground line 203b, the first radiator 1, the second radiator 2, and the third radiator 3 are laid on the same Printed Circuit Board (PCB).

The first ground line 202a, the second ground line 202b, and the signal line 201 constitute a first coplanar waveguide, the third ground line 203a, the fourth ground line 203b, and the signal line 201 constitute a second coplanar waveguide, and the first coplanar waveguide and the second coplanar waveguide share the signal line 201. The coplanar waveguide is used as a transmission line with a planar structure for transmitting signals and uniformly distributing energy to the first radiator, the second radiator and the third radiator, so that the effect of signal superposition is achieved, and the omni-directional radiation characteristic is maintained while the directivity is enhanced.

Alternatively, the characteristic impedance of the first coplanar waveguide is adjusted by adjusting any one or any plurality of the width of the signal line 201, the interval between the first ground line 202a and the signal line 201, and the interval between the second ground line 202b and the signal line 201. The characteristic impedance of the first coplanar waveguide is adjusted, for example, by adjusting the width of the signal line 201. As another example, the characteristic impedance of the first coplanar waveguide is adjusted by adjusting the spacing between the first ground line 202a and the signal line 201 and the spacing between the second ground line 202b and the signal line 201. As another example, the characteristic impedance of the first coplanar waveguide is adjusted by adjusting the width of the signal line 201, the spacing between the first ground line 202a and the signal line 201, and the spacing between the second ground line 202b and the signal line 201.

Alternatively, the characteristic impedance of the second coplanar waveguide is adjusted by adjusting any one or any plurality of the width of the signal line 201, the interval between the third ground line 203a and the signal line 201, and the interval between the fourth ground line 203b and the signal line 201. The characteristic impedance of the second coplanar waveguide is adjusted, for example, by adjusting the width of the signal line 201. As another example, the characteristic impedance of the second coplanar waveguide is adjusted by adjusting the spacing between the third ground line 203a and the signal line 201 and the spacing between the fourth ground line 203b and the signal line 201. As another example, the characteristic impedance of the second coplanar waveguide is adjusted by adjusting the width of the signal line 201, the spacing between the third ground line 203a and the signal line 201, and the spacing between the fourth ground line 203b and the signal line 201.

Fig. 2c shows a schematic diagram of the current distribution generated in the multi-radiator antenna in the above-mentioned alternative embodiment, so as to illustrate the working principle of the present invention.

As shown in fig. 2c, and in conjunction with fig. 2b, the current distribution of the first ground line 202a and the second ground line 202b is the same, and both are opposite to the current direction of the signal line 201, and this current pattern constitutes the basic feature of the first coplanar waveguide. The current distribution of the third ground line 203a and the fourth ground line 203b is the same and both are opposite to the current direction of the signal line 201, and this current mode constitutes the basic feature of the second coplanar waveguide. The upper and lower ends of the first coplanar waveguide generate strong current areas (marked by thick arrows) with the same current distribution, the middle position also generates the strong current areas and the current distribution of the strong current areas at the upper and lower ends is opposite, and the first coplanar waveguide generates two weak current areas (marked by thin arrows) in the area between the upper end and the middle position and the area between the lower end and the middle position. The upper and lower ends of the second coplanar waveguide generate strong current areas with the same current distribution, the middle position also generates the strong current areas with the current distribution opposite to that of the strong current areas at the upper and lower ends, and the area between the upper end and the middle position and the area between the lower end and the middle position of the second coplanar waveguide generate two weak current areas (marked by thin arrows). According to current distribution, the first coplanar waveguide and the second coplanar waveguide work at a wavelength, namely the effective current length is a wavelength, and the characteristic enables the current distribution direction of the first radiator, the current distribution direction of the second radiator and the current distribution direction of the third radiator to be consistent, so that signal superposition is realized on the premise of not changing the omnidirectional radiation characteristic, and the directivity and the gain are improved. In other alternative embodiments, the length of the first coplanar waveguide and the length of the second coplanar waveguide may be N wavelengths, where N is a positive integer.

According to the embodiment of the present invention, the first radiator composed of the first oscillator 211, the second oscillator 212, and the third oscillator 213 is connected to the second radiator composed of the fourth oscillator 214, the fifth oscillator 215, the sixth oscillator 216, and the seventh oscillator 217 through the first coplanar waveguide, that is, the first radiator and the second radiator are respectively located at both ends of the first coplanar waveguide, and the distance therebetween is about one wavelength, that is, the effective current length of the first coplanar waveguide is about one operating wavelength. In other alternative embodiments, the first radiator and the second radiator are respectively located at two ends of the first coplanar waveguide, and the spacing is about N wavelengths, where N is a positive integer. The second radiator composed of the fourth, fifth, sixth and

seventh oscillators

214, 215, 216 and 217 is connected to the third radiator composed of the eighth, ninth and

tenth oscillators

218, 219 and 220 through the second coplanar waveguide, that is, the second and third radiators are respectively located at both ends of the second coplanar waveguide (CPW), and the distance therebetween is about one wavelength, that is, the effective current length of the second coplanar waveguide is about one operating wavelength. In other alternative embodiments, the second radiator and the third radiator are respectively located at two ends of the second coplanar waveguide, and the spacing is about N wavelengths, where N is a positive integer.

Alternatively, the resonant frequency of the first radiator is adjusted by adjusting any one or more of the length of the first vibrator 211, the length of the second vibrator 212, and the length of the third vibrator 213, and the first vibrator 211 length, the length of the second vibrator 212, and the length of the third vibrator 213 together determine the resonant frequency of the first radiator. Alternatively, the adjustment of the first radiator resonance frequency is achieved by adjusting any one of the length of first vibrator 211, the length of second vibrator 212, and the length of third vibrator 213, for example, the adjustment of the first radiator resonance frequency can be achieved by adjusting only the length of third vibrator 213. Alternatively, the adjustment of the first radiator resonance frequency is achieved by adjusting any two of the length of the first vibrator 211, the length of the second vibrator 212, and the length of the third vibrator 213, for example, the adjustment of the first radiator resonance frequency is achieved by adjusting the length of the first vibrator 211 and the length of the second vibrator 212. Alternatively, the adjustment of the resonant frequency of the first radiator is achieved by adjusting the lengths of the first vibrator 211, the second vibrator 212, and the third vibrator 213.

Optionally, the resonant frequency of the second radiator is adjusted by adjusting any one or more of the length of the fourth element 214, the length of the fifth element 215, the length of the sixth element 216, and the length of the seventh element 217, and the length of the fourth element 214, the length of the fifth element 215, the length of the sixth element 216, and the length of the seventh element 217 together determine the resonant frequency of the second radiator. Alternatively, the adjustment of the resonance frequency of the second radiator may be achieved by adjusting any one of the length of the fourth element 214, the length of the fifth element 215, the length of the sixth element 216, and the length of the seventh element 217, for example, the adjustment of the resonance frequency of the second radiator may be achieved by adjusting only the length of the sixth element 216. Alternatively, the adjustment of the resonance frequency of the second radiator is achieved by adjusting any two of the length of the fourth element 214, the length of the fifth element 215, the length of the sixth element 216, and the length of the seventh element 217, for example, the adjustment of the resonance frequency of the second radiator is achieved by adjusting the length of the fourth element 214 and the length of the fifth element 215. Alternatively, the adjustment of the second radiator resonance frequency is achieved by adjusting any three of the length of the fourth element 214, the length of the fifth element 215, the length of the sixth element 216, and the length of the seventh element 217, for example, the adjustment of the second radiator resonance frequency is achieved by adjusting the length of the fourth element 214, the length of the fifth element 215, and the length of the sixth element 216. Alternatively, the adjustment of the resonant frequency of the second radiator is achieved by adjusting the lengths of the fourth element 214, the fifth element 215, the sixth element 216 and the seventh element 217.

Alternatively, the resonant frequency of the third radiator is adjusted by adjusting any one or any more of the length of the eighth element 218, the length of the ninth element 219, and the length of the tenth element 220, and the length of the eighth element 218, the length of the ninth element 219, and the length of the tenth element 220 together determine the resonant frequency of the third radiator. Alternatively, the adjustment of the resonant frequency of the third radiator may be achieved by adjusting any one of the length of the eighth element 218, the length of the ninth element 219, and the length of the tenth element 220, for example, the adjustment of the resonant frequency of the third radiator may be achieved by adjusting only the length of the tenth element 220. Alternatively, the adjustment of the resonant frequency of the third radiator is achieved by adjusting any two of the length of the eighth element 218, the length of the ninth element 219, and the length of the tenth element 220, for example, the adjustment of the resonant frequency of the third radiator is achieved by adjusting the length of the eighth element 218 and the length of the ninth element 219. Alternatively, the adjustment of the resonant frequency of the third radiator is achieved by adjusting the length of the eighth element 218, the length of the ninth element 219, and the length of the tenth element 220.

Optionally, the first vibrator 211 and the second vibrator 212 are both L-shaped. Alternatively, the first vibrator 211 and the second vibrator 212 are symmetrically disposed on both sides of the signal line 201. Optionally, the first oscillator 211 and the second oscillator 212 are both L-shaped and mirror-symmetrical with respect to the signal line 201. Optionally, the third vibrator 213 is in an inverted U shape. Of course, other variations in the shape of the first vibrator 211, the second vibrator 212, the third vibrator 213 and the structure of the first radiator may be used according to the teachings of the present invention and according to specific design requirements.

Optionally, the fourth element 214 and the fifth element 215 are both L-shaped and mirror-symmetrical with respect to the signal line 201, the fourth element 214 and the fifth element 215 are adjacent to the third radiator, the sixth element 216 and the seventh element 217 are both inverted L-shaped and mirror-symmetrical with respect to the signal line (201), and the sixth element 216 and the seventh element 217 are adjacent to the first radiator. Of course, other variations in the shape of the fourth, fifth, sixth and

seventh oscillators

214, 215, 216, 217 and the structure of the second radiator are possible according to the teachings of the present invention and according to specific design requirements.

Optionally, the eighth transducer 218 and the ninth transducer 219 are each in the shape of an inverted L. Alternatively, the eighth element 218 and the ninth element 219 are symmetrically disposed on both sides of the signal line 201. Optionally, the eighth element 218 and the ninth element 219 are each inverted L-shaped and mirror-symmetric with respect to the signal line 201. Optionally, the tenth element 220 is U-shaped. Of course, other variations in the shape of the eighth, ninth, and

tenth oscillators

218, 219, 220 and the structure of the third radiator may be used according to the teachings of the present invention and according to specific design requirements.

In the embodiment shown in fig. 2b, all the structures of the antenna are located in the same plane. First oscillator 211 and second oscillator 212 are all L-shaped and are mirror-symmetrical with respect to signal line 201, and the lateral side of first oscillator 211 and the lateral side of second oscillator 212 are disposed on the inside, and the vertical side of first oscillator 211 and the vertical side of second oscillator 212 are disposed on the outside. The third vibrator 213 has an inverted U shape and is located below the first vibrator 211 and the second vibrator 212 in the plan view shown in fig. 2 a. The fourth vibrator 214 and the fifth vibrator 215 are both L-shaped and mirror-symmetrical with respect to the signal line 201, the fourth vibrator 214 and the fifth vibrator 215 are adjacent to the third radiator, the lateral side of the fourth vibrator 214 and the lateral side of the fifth vibrator 215 are disposed on the inner side, and the vertical side of the fourth vibrator 214 and the vertical side of the fifth vibrator 215 are disposed on the outer side. The sixth vibrator 216 and the seventh vibrator 217 are in an inverted L shape and are mirror-symmetrical with respect to the signal line 201, the sixth vibrator 216 and the seventh vibrator 217 are adjacent to the first radiator, a lateral side of the sixth vibrator 216 and a lateral side of the seventh vibrator 217 are disposed on the inner side, and a vertical side of the sixth vibrator 216 and a vertical side of the seventh vibrator 217 are disposed on the outer side. The eighth transducer 218 and the ninth transducer 219 are each inverted L-shaped and mirror-symmetrical with respect to the signal line 201, and a lateral side of the eighth transducer 218 and a lateral side of the ninth transducer 219 are disposed on the inner side, and a vertical side of the eighth transducer 218 and a vertical side of the ninth transducer 219 are disposed on the outer side. The tenth transducer 220 is U-shaped and is positioned above the eighth transducer 218 and the ninth transducer 219 in the plan view shown in fig. 2 a. The inner side and the outer side are located inward with respect to the distance from the signal line 201, with the lateral side of the L-shaped structure of the vibrator being closer to the signal line 201, and with the vertical side of the L-shaped structure being further from the signal line 201. The lateral terminal of first oscillator 211 and the lateral terminal of sixth oscillator 216 are connected to each other via first ground line 202a, and the lateral terminal of second oscillator 212 and the lateral terminal of seventh oscillator 217 are connected to each other via second ground line 202 b. The lateral terminal of the fourth transducer 214 is connected to the lateral terminal of the eighth transducer 218 via a third ground line 203a, and the lateral terminal of the fifth transducer 215 is connected to the lateral terminal of the ninth transducer 219 via a fourth ground line 203 b. One end of the signal line 201 is connected to the feed circuit 200, and the other end is connected to the lateral side of the tenth element 220. One end of the feed circuit 200 is connected to the signal line 201, and the other end is connected to the lateral side of the third oscillator 213.

Of course, the antenna structure of the embodiment shown in fig. 2b is merely illustrative, and other variations in the shape of the various parts and the overall structure of the antenna may be used in accordance with the teachings of the present invention and in accordance with specific design requirements. For example, the first oscillator 211, the second oscillator 212, the third oscillator 213, the fourth oscillator 214, the fifth oscillator 215, the sixth oscillator 216, the seventh oscillator 217, the eighth oscillator 218, the ninth oscillator 219, and the tenth oscillator 220 may have other shapes, and the first ground line 202a may have one end connected to a portion of the first oscillator 211 and the other end connected to a portion of the sixth oscillator 216, and the fourth ground line 203b may have one end connected to a portion of the fifth oscillator 215 and the other end connected to a portion of the ninth oscillator 219.

Fig. 2d shows an alternative embodiment of the multi-radiator antenna of the present invention.

In this alternative embodiment, the multi-radiator antenna includes a feeding circuit 300, a signal line 301, a ground line, a first radiator, M second radiators, and a third radiator, where M is a positive integer and M is greater than or equal to 2. The first radiator includes a first element 311, a second element 312, and a third element 313, each of which includes a fourth element 314, a fifth element 315, a sixth element 316, and a seventh element 317, and the third radiator includes an eighth element 318, a ninth element 319, and a tenth element 320.

The first ground group includes a first ground 302a and a second ground 302b, which are used to connect the adjacent first radiator and the second radiator; the second ground set includes a third ground 304a and a fourth ground 304b for connecting the adjacent second radiator and the third radiator; the multi-radiator antenna further includes M-1 third ground groups, each of which includes a fifth ground 303a and a sixth ground 303b, and the third ground groups are used to connect two adjacent second radiators. One end of the first ground line 302a is connected to the first vibrator 311 in the first radiator, and the other end is connected to the sixth vibrator 316 in the second radiator adjacent to the first radiator; the second ground 302b has one end connected to the second vibrator 312 of the first radiator and the other end connected to the seventh vibrator 317 of the second radiator adjacent to the first radiator. One end of the third ground line 304a is connected to the fourth vibrator 314 in the second radiator adjacent to the third radiator, and the other end is connected to the eighth vibrator 318 in the third radiator; one end of the fourth ground line 304b is connected to the fifth vibrator 315 in the second radiator adjacent to the third radiator, and the other end is connected to the ninth vibrator 319 in the third radiator. One end of the fifth ground wire 303a is connected to the fourth vibrator 314 of the first-stage second radiator, and the other end is connected to the sixth vibrator 316 of the second radiator of the next stage; one end of the sixth ground line 303b is connected to the fifth vibrator 315 of the first-stage second radiator, and the other end is connected to the seventh vibrator 317 of the second radiator of the next stage. One end of the signal line 301 is connected to the feeding circuit 300, and the other end is connected to the tenth element 320 of the third radiator. The feed circuit 300 has one end connected to the signal line 301 and the other end connected to the third element 313 in the first radiator.

Each of the portions of the multi-radiator antenna, i.e., the feed circuit, the signal line, the ground line, the first radiator, the M second radiators, and the third radiator, is laid on a Printed Circuit Board (PCB).

The first ground line 302a, the second ground line 302b and the signal line 301 constitute a first coplanar waveguide, the third ground line 304a, the fourth ground line 304b and the signal line 301 constitute a second coplanar waveguide, the M-1 third ground line group and the signal line 301 constitute M-1 third coplanar waveguides, and the first coplanar waveguide, the second coplanar waveguide and the M-1 third coplanar waveguides share the signal line 301. The coplanar waveguide is used as a transmission line with a planar structure for transmitting signals and uniformly distributing energy to the first radiator, the M second radiators and the third radiator, so that the effect of signal superposition is achieved, and the omni-directional radiation characteristic is maintained while the directivity is enhanced. Optionally, the third coplanar waveguide operates at N wavelengths, where N is a positive integer, so that current distribution directions of two adjacent second radiators are the same. When N is 1, the third coplanar waveguide operates at 1 wavelength.

In other alternative embodiments, the antenna structure in the above embodiments further includes a capacitive element or an inductive element or a combination of the capacitive element and the inductive element, so as to achieve miniaturization of the antenna. The capacitive elements have a capacitive component and may be lumped elements, such as chip capacitors, varactors, transistors, etc., or distributed elements, such as parallel conductive lines, transmission lines, etc. The inductive element has an inductive component, and may be a lumped element, such as a chip inductor, a chip resistor, etc., or a distributed element, such as a wire, a coil, etc.

Optionally, the first radiator includes a capacitive element or an inductive element or a combination of the capacitive element and the inductive element to achieve miniaturization of the radiator unit. Optionally, a capacitive element or an inductive element or a combination of the capacitive element and the inductive element is connected in series with the third oscillator. As shown in fig. 3a, an inductive element 261 is connected in series at the terminal of the third transducer 213. As shown in fig. 3b, an inductive element 262 is connected in series in the middle of the third transducer 213. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the first oscillator 211. As shown in fig. 3c, an inductive element 263 is connected in series to the terminal of the first transducer 211. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the second transducer 212. As shown in fig. 3d, an inductive element 264 is connected in series in the middle of the second element 212. The structure of the embodiment shown in fig. 3a to 3d is only schematic, and any position on the structure of the first oscillator 211, the second oscillator 212 or the third oscillator 213 may be connected in series with a capacitive element or an inductive element or a combination of the capacitive element and the inductive element to realize miniaturization of the radiator unit, the number of the capacitive elements may be one or more, and the number of the inductive elements may be one or more.

Optionally, the third radiator includes a capacitive element or an inductive element or a combination of the capacitive element and the inductive element to achieve miniaturization of the radiator unit. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the tenth element 220. As shown in fig. 3e, an inductive element 265 is connected in series at the terminal of the tenth element 220. As shown in fig. 3f, an inductive element 266 is connected in series with the middle of the tenth element 220. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the eighth element 218. As shown in fig. 3g, an inductive element 267 is connected in series with the middle of the eighth transducer 218. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the ninth element 219. As shown in fig. 3h, an inductive element 268 is connected in series at the terminal of the ninth element 219. The structure of the embodiment shown in fig. 3e to 3h is only schematic, and any position on the structure of the eighth element 218, the ninth element 219 or the tenth element 220 can be connected in series with a capacitive element or an inductive element or a combination of the capacitive element and the inductive element to realize miniaturization of the radiator unit, the number of the capacitive elements can be one or more, and the number of the inductive elements can be one or more.

Optionally, the second radiator includes a capacitive element or an inductive element or a combination of the capacitive element and the inductive element to achieve miniaturization of the radiator unit. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the fourth element 214. As shown in fig. 3i, an inductive element 281 is connected in series at the terminal of the fourth transducer 214. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the fifth element 215. As shown in fig. 3j, the middle of the fifth element 215 is connected in series with an inductive element 282. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the sixth element 216. As shown in fig. 3k, an inductive element 283 is connected in series in the middle of the sixth element 216. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series with the seventh element 217. As shown in fig. 3l, an inductive element 284 is connected in series at the terminal of the seventh element 217. The structure of the embodiment shown in fig. 3i to 3l is only schematic, and any position on the structure of the fourth element 214, the fifth element 215, the sixth element 216 or the seventh element 217 can be connected in series with a capacitive element or an inductive element or a combination of the capacitive element and the inductive element to realize miniaturization of the radiator unit, the number of the capacitive elements can be one or more, and the number of the inductive elements can be one or more.

Optionally, each coplanar waveguide (CPW) includes a capacitive element or an inductive element or a combination of capacitive and inductive elements therein for shortening the length of the coplanar waveguide (CPW). Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series to the ground line. As shown in fig. 3m, an inductive element 271 is connected in series with the first ground line 202 a. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected in series to the second ground line 202 b. As shown in fig. 3n, an inductive element 272 is connected in series with the second ground line 202 b. Optionally, a capacitive element or an inductive element or a combination of the capacitive element and the inductive element is connected in series on the signal line 201. As shown in fig. 3o, an inductive element 273 is connected in series with the signal line 201. Optionally, a capacitive element or an inductive element or a combination of a capacitive element and an inductive element is connected between the ground line and the signal line. As shown in fig. 3p, a capacitive element 274 is connected between the first ground line 202a and the signal line 201. As shown in fig. 3q, a capacitive element 275 is connected between the second ground line 202b and the signal line 201. The structure of the embodiment shown in fig. 3m to 3q is only schematic, any position on the structure of the ground line or the signal line may be connected with the capacitive element or the inductive element or the combination of the capacitive element and the inductive element in series, and any position between the ground line and the signal line may be connected with the capacitive element or the inductive element or the combination of the capacitive element and the inductive element to achieve miniaturization of the radiator unit, the number of the capacitive elements may be one or more, and the number of the inductive elements may be one or more.

Fig. 4 shows an S-parameter diagram of the multi-radiator antenna of the embodiment shown in fig. 2 b.

As shown in fig. 4, a curve 400 shows the reflection coefficient generated by the multi-radiator antenna, which has a resonance frequency around 2.45GHz and has a broadband characteristic. It can be seen that the first radiator including the first, second, and third oscillators, the second radiator including the fourth, fifth, sixth, and seventh oscillators, and the eighth, ninth, and tenth oscillators all operate in the same frequency band, and the resonance frequency of the antenna is generated together, and the reflection coefficient of the antenna is determined.

Fig. 5 shows a radiation pattern of the multi-radiator antenna of the embodiment shown in fig. 2 b.

As shown in fig. 5, the curve 500 is the radiation pattern generated by the multi-radiator antenna in the H-plane, the radiation pattern is nearly circular in shape, the maximum gain value exceeds 5dBi, and the maximum gain value of the conventional dipole antenna is only 1-2 dBi. Therefore, the utility model discloses the all-round radiation characteristic of first irradiator, second irradiator and third irradiator in the antenna structure does not all change, and the gain value obviously increases. The three radiators connected by the coplanar waveguide generate a signal superposition effect, thereby realizing the characteristics of high gain and omnidirectional radiation, and having the advantages of wide signal coverage rate, high communication speed, long propagation distance and the like.

In other optional embodiments, the present invention further provides an electronic device, which includes the multi-radiator antenna according to any of the above optional embodiments. For example, the electronic device is a router, or a network box, or a set-top box, or a wireless access point device, or a vehicle station, or a drone, or the like.

The present invention is not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A multi-radiator antenna, comprising:

the antenna comprises a feed circuit (200) laid on a printed circuit board, a signal wire (201), a ground wire, a first radiator, M second radiators and a third radiator, wherein M is a positive integer; wherein the content of the first and second substances,

one end of the feed circuit (200) is connected with the signal line (201), and the other end is connected with the first radiator;

one end of the signal wire (201) is connected with the feed circuit (200), and the other end is connected with the third radiator;

the M second radiators are arranged on a path of a signal line (201) between the first radiator and the third radiator;

two adjacent radiators are connected through a ground wire group, one ground wire group comprises two ground wires, the two ground wires are respectively arranged on two sides of the signal wire (201) and are provided with gaps with the signal wire (201), and each ground wire group and the signal wire form a coplanar waveguide.

2. The multi-radiator antenna of claim 1,

in any one coplanar waveguide, the current distribution of the two ground wires is the same and is opposite to the current direction of the signal wire (201); the coplanar waveguide operates at N wavelengths, N being a positive integer.

3. The multi-radiator antenna of claim 1,

the first radiator comprises a first oscillator (211), a second oscillator (212) and a third oscillator (213), the second radiator comprises a fourth oscillator (214), a fifth oscillator (215), a sixth oscillator (216) and a seventh oscillator (217), and the third radiator comprises an eighth oscillator (218), a ninth oscillator (219) and a tenth oscillator (220);

the first ground wire group comprises a first ground wire (202a) and a second ground wire (202b) which are used for connecting the adjacent first radiator and the second radiator; the second ground set comprises a third ground wire (203a) and a fourth ground wire (203b) which are used for connecting the adjacent second radiator and the third radiator;

one end of the first ground wire (202a) is connected with a first oscillator (211) in the first radiating body, and the other end of the first ground wire is connected with a sixth oscillator (216) in the second radiating body; one end of the second ground wire (202b) is connected with a second oscillator (212) in the first radiator, and the other end of the second ground wire is connected with a seventh oscillator (217) in the second radiator;

one end of the third ground wire (203a) is connected with a fourth oscillator (214) in the second radiator, and the other end of the third ground wire is connected with an eighth oscillator (218) in the third radiator; one end of the fourth ground wire (203b) is connected with a fifth oscillator (215) in the second radiator, and the other end of the fourth ground wire is connected with a ninth oscillator (219) in the third radiator;

one end of the signal wire (201) is connected with the feed circuit (200), and the other end of the signal wire is connected with a tenth oscillator (220) in the third radiator;

one end of the feed circuit is connected with the signal line (201), and the other end of the feed circuit is connected with a third oscillator (213) in the first radiator.

4. The multi-radiator antenna of claim 3,

the antenna also comprises M-1 third ground wire groups, wherein M is more than or equal to 2, each third ground wire group comprises a fifth ground wire and a sixth ground wire, and the third ground wire groups are used for connecting two adjacent second radiators;

5. The multi-radiator antenna of claim 3,

the first oscillator (211) and the second oscillator (212) are both L-shaped and mirror-symmetrical about the signal line (201), and the third oscillator (213) is in an inverted U shape;

the fourth vibrator (214) and the fifth vibrator (215) are both L-shaped and mirror-symmetrical about a signal line (201), and the sixth vibrator (216) and the seventh vibrator (217) are both inverted-L-shaped and mirror-symmetrical about the signal line (201);

the eighth vibrator (218) and the ninth vibrator (219) are both inverted-L-shaped and mirror-symmetrical with respect to the signal line (201), and the tenth vibrator (220) is U-shaped.

6. The multi-radiator antenna of claim 5,

the first vibrator (211), the second vibrator (212), the fourth vibrator (214), the fifth vibrator (215), the sixth vibrator (216), the seventh vibrator (217), the eighth vibrator (218), and the ninth vibrator (219) have vertical sides on the outside and horizontal sides on the inside;

the radiator comprises a first radiator and a second radiator which are adjacent, wherein a transverse terminal of a first oscillator (211) of the first radiator is connected with a transverse terminal of a sixth oscillator (216) of the second radiator through a first ground wire (202a), and a transverse terminal of a second oscillator (212) of the first radiator is connected with a transverse terminal of a seventh oscillator (217) of the second radiator through a second ground wire (202 b);

and the transverse terminal of a fourth oscillator (214) of the second radiator is connected with the transverse terminal of an eighth oscillator of the third radiator through a third ground wire (203a), and the transverse terminal of a fifth oscillator (215) of the second radiator is connected with the transverse terminal of a ninth oscillator of the third radiator through a fourth ground wire (203 b).

7. The multi-radiator antenna of claim 1,

also included are capacitive elements or inductive elements or a combination of capacitive and inductive elements.

8. The multi-radiator antenna of claim 7,

the first radiator, the second radiator, or the third radiator further includes a capacitive element or an inductive element, or a combination of the capacitive element and the inductive element.

9. The multi-radiator antenna of claim 7,

any of the coplanar waveguides further comprises a capacitive element or an inductive element or a combination of a capacitive element and an inductive element.

10. An electronic device, characterized in that it comprises a multi-radiator antenna according to any of claims 1 to 9.