CN114006157A - Planar quasi-yagi antenna based on substrate integrated waveguide and tapered gradient structure feed - Google Patents
Planar quasi-yagi antenna based on substrate integrated waveguide and tapered gradient structure feed Download PDFInfo
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- CN114006157A CN114006157A CN202111253926.8A CN202111253926A CN114006157A CN 114006157 A CN114006157 A CN 114006157A CN 202111253926 A CN202111253926 A CN 202111253926A CN 114006157 A CN114006157 A CN 114006157A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
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Abstract
The invention discloses a planar quasi-yagi antenna based on substrate integrated waveguide and conical gradient structure feed, which comprises a metal printing layer and a dielectric substrate layer, wherein the metal printing layer is printed on two sides of the dielectric substrate layer to form a top metal layer and a bottom metal layer; the metal printing layer comprises a substrate integrated waveguide, a conical gradual feed structure, a dipole radiation unit and a director; one end of the substrate integrated waveguide is connected with a conical gradient feed structure, the other end of the conical gradient feed structure is connected with a dipole radiation unit, and a director is arranged beside the dipole radiation unit. According to the planar quasi-yagi antenna, the cross structure and the -shaped structure are respectively loaded on the dipole double arms of the traditional planar quasi-yagi antenna, and compared with the traditional planar quasi-yagi antenna, the structure effectively improves return loss of the antenna in impedance bandwidth on the basis of ensuring high gain performance of the antenna.
Description
Technical Field
The invention relates to a plane quasi-yagi antenna structure with a novel structure, in particular to an antenna structure which is manufactured by adopting a printed circuit board process and radiates by using a novel dipole unit structure so as to improve indexes such as antenna bandwidth, return loss and the like.
Background
The performance of an antenna, which is one of the key components of radio frequency circuitry, directly affects the communication signal quality of a communication system, the signal coverage of a communication system, and the operating performance of a communication system. With the further development of electromagnetic technology, scientific and technological research is evolving towards higher frequency bands, and covers from low frequency bands to millimeter wave bands, and is gradually widely applied in the fields of virtual reality technology, new wireless local area network technology, radar and guidance technology, radio astronomy, clinical medicine, spectroscopy and the like.
The loss caused by the transmission distance is compensated by adopting the high-gain amplifier or the antenna array, the cost of the communication system is increased by increasing the gain of the amplifier and using the antenna array, and meanwhile, the broadband characteristic becomes an inevitable consideration. Therefore, broadband, high gain, and low return loss antenna design has been a difficult point for radio frequency communication systems.
Yagi antenna is typical endfire antenna, and traditional yagi antenna is built by a plurality of metal rods and forms, and along with the development of printed circuit board technical development and substrate integrated waveguide technique, yagi antenna evolves into planar antenna, and the accurate yagi antenna of plane printing can satisfy most radio frequency application, but the bandwidth that uses the planar accurate yagi antenna of traditional structure often is restricted, and promotes the loss that the bandwidth also can bring the gain for can't satisfy the requirement of bandwidth and gain simultaneously.
Therefore, it is necessary to invent a planar quasi-yagi antenna capable of improving the return loss of the antenna and increasing the impedance bandwidth while ensuring high gain of the antenna, so as to be applied to millimeter wave radar, communication and other systems.
Disclosure of Invention
The technical problem is as follows: in order to solve the above problems, the present invention provides a planar quasi-yagi antenna based on substrate integrated waveguide and tapered transition structure feed, and in particular, an antenna structure manufactured by a printed circuit board process and radiating by using a novel dipole unit structure, so as to improve indexes such as antenna bandwidth and return loss.
The technical scheme is as follows: the invention provides a planar quasi-yagi antenna based on substrate integrated waveguide and conical gradient structure feed, which comprises a metal printing layer and a dielectric substrate layer, wherein the metal printing layer is printed on two sides of the dielectric substrate layer to form a top metal layer and a bottom metal layer; the metal printing layer comprises a substrate integrated waveguide, a conical gradual feed structure, a dipole radiation unit and a director; one end of the substrate integrated waveguide is connected with a conical gradient feed structure, the other end of the conical gradient feed structure is connected with a dipole radiation unit, and a director is arranged beside the dipole radiation unit.
Wherein the content of the first and second substances,
when the dipole of the planar quasi-yagi antenna is a cross-structure dipole radiation unit, a first substrate integrated waveguide structure is arranged on the top metal layer, one end of the first substrate integrated waveguide structure is connected with a first conical gradient feed structure, the other end of the first conical gradient feed structure is vertically connected with the first cross-structure dipole radiation unit, and a first director and a second director are arranged beside the first cross-structure dipole radiation unit side by side; the bottom metal layer is provided with a second substrate integrated waveguide structure, one end of the second substrate integrated waveguide structure is connected with a second tapered gradual feed structure, the other end of the second tapered gradual feed structure is vertically connected with a second cross-structure dipole radiation unit, and the direction difference between the second cross-structure dipole radiation unit and the first cross-structure dipole radiation unit is 180 degrees and is symmetrically distributed with the plane quasi-yagi antenna axis.
When the dipole of the planar quasi-yagi antenna is an -shaped dipole radiation unit, a third substrate integrated waveguide structure is arranged on the top metal layer, one end of the third substrate integrated waveguide structure is connected with a third tapered gradient feed structure, the other end of the third tapered gradient feed structure is vertically connected with a first -shaped dipole radiation unit, and a third director and a fourth director are arranged beside the first -shaped dipole radiation unit side by side; the bottom metal layer is provided with a fourth substrate integrated waveguide structure, one end of the fourth substrate integrated waveguide structure is connected with a fourth conical gradual feed structure, and the other end of the fourth conical gradual feed structure is vertically connected with a second -shaped dipole radiation unit; the direction difference between the first -shaped dipole radiating element and the second -shaped dipole radiating element is 180 degrees, and the first -shaped dipole radiating element and the second -shaped dipole radiating element are symmetrically distributed with the axis of the planar quasi-yagi antenna.
The first cross-structure dipole radiation unit, the second cross-structure dipole radiation unit, the first -shaped structure dipole radiation unit and the second -shaped structure dipole radiation unit are rectangular, and the length of the first cross-structure dipole radiation unit, the second cross-structure dipole radiation unit, the first -shaped structure dipole radiation unit and the second -shaped structure dipole radiation unit is longer than the width of the dipole radiation unit.
The first -shaped dipole radiating element and the second -shaped dipole radiating element are the same or different in size.
The lengths of the first director, the second director, the third director and the fourth director are less than the lengths of the first cross-structure dipole radiation unit, the second cross-structure dipole radiation unit, the first -shaped dipole radiation unit and the second -shaped dipole radiation unit.
The first director, the second director or the third director and the fourth director have the same distance.
The first cross-structure dipole radiation unit, the second cross-structure dipole radiation unit, the first -structure dipole radiation unit, the second -structure dipole radiation unit, the first director, the second director, the third director and the fourth director are respectively printed on two sides of the metal printing plate; the number of directors is 1 to 4.
The first conical gradual change feed structure, the second conical gradual change feed structure, the third conical gradual change feed structure and the fourth conical gradual change feed structure are changed into a microstrip line feed structure, a coplanar stripline structure or a coplanar waveguide structure and are printed on two sides of the double-sided metal printing plate;
the radiation structure of the first cross-structure dipole radiation unit, the second cross-structure dipole radiation unit, the first -structure dipole radiation unit, the second -structure dipole radiation unit, the first director, the second director, the third director and the fourth director is changed into a V-shaped radiation structure and a one-shaped double-dipole radiation structure.
Has the advantages that:
1) the bandwidth, gain and return loss performance of the planar quasi-yagi antenna are effectively improved, and the miniaturization design of the antenna can be realized on the basis of realizing high performance.
2) The structure is simple, and the performance of the planar quasi-yagi antenna is easy to further improve on the basis of not performing excessive adjustment.
3) The method is suitable for various application occasions such as short-distance communication, radio frequency transceivers, wireless local area networks and the like.
The invention is suitable for short-distance communication scenes from a low frequency band to a millimeter wave frequency band, and each index is far superior to that of the traditional planar quasi-yagi antenna structure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention, wherein (a) is a schematic structural diagram of a top metal layer of a planar quasi-yagi antenna with a cross dipole, and (b) is a schematic structural diagram of a bottom metal layer of a planar quasi-yagi antenna with a cross dipole; (c) a top metal layer structure schematic diagram of a planar quasi-yagi antenna with -shaped dipoles, (d) a bottom metal layer structure schematic diagram of a planar quasi-yagi antenna with -shaped dipoles;
fig. 2 is a comparison result of performance indexes of a planar quasi-yagi antenna of a conventional structure and a planar quasi-yagi antenna of a cross dipole structure when the planar quasi-yagi antenna is applied to a 45GHz frequency band. Wherein (a) is the return loss S11The parameter (b) is an E-plane antenna gain parameter.
FIG. 3 is a graph showing the comparison of the performance indexes of a planar quasi-yagi antenna of a conventional structure, a planar quasi-yagi antenna of a cross dipole structure and a planar quasi-yagi antenna of an -shaped dipole structure when the present invention is applied to a 60GHz frequency bandAnd (6) obtaining the result. Wherein (a) is the return loss S11The parameter (b) is an E-plane antenna gain parameter.
Fig. 4 is a comparison result of performance indexes of a planar quasi-yagi antenna with a conventional structure, a planar quasi-yagi antenna with a cross dipole structure and a planar quasi-yagi antenna with an -shaped dipole structure, when the present invention is applied to a 70GHz frequency band. Wherein (a) is the return loss S11The parameter (b) is an E-plane antenna gain parameter.
The figure shows that: a first substrate integrated waveguide structure 1-1, a second substrate integrated waveguide structure 2-1, a third substrate integrated waveguide structure 3-1 and a fourth substrate integrated waveguide structure 4-1; the antenna comprises a first conical gradient feed structure 1-2, a second conical gradient feed structure 2-2, a third conical gradient feed structure 3-2, a fourth conical gradient feed structure 4-2, a first cross-structure dipole radiation unit 1-3, a second cross-structure dipole radiation unit 2-3, a first -shaped dipole radiation unit 3-3 and a second -shaped dipole radiation unit 4-3; a first director 1-4, a second director 1-5, a third director 3-4 and a fourth director 3-5.
Detailed Description
The invention will be further described with reference to the accompanying drawings
As shown in fig. 1, the present invention is a planar quasi-yagi antenna structure based on substrate integrated waveguide and tapered transition structure feed. The antenna is composed of a metal printing layer and a dielectric substrate layer, wherein a metal printing layer structure is shown in the figure. When the dipole of the planar quasi-yagi antenna is a cross-structure dipole radiation unit, a first substrate integrated waveguide structure 1-1 is arranged on a top metal layer, one end of the first substrate integrated waveguide structure 1-1 is connected with a first conical gradient feed structure 1-2, the other end of the first conical gradient feed structure 1-2 is vertically connected with a first cross-structure dipole radiation unit 1-3, and a first director 1-4 and a second director 1-5 are arranged beside the first cross-structure dipole radiation unit 1-3 side by side; the bottom metal layer is provided with a second substrate integrated waveguide structure 2-1, one end of the second substrate integrated waveguide structure 2-1 is connected with a second conical gradient feed structure 2-2, the other end of the second conical gradient feed structure 2-2 is vertically connected with a second cross-structure dipole radiation unit 2-3, the direction difference between the second cross-structure dipole radiation unit 2-3 and the first cross-structure dipole radiation unit 1-3 is 180 degrees, and the second cross-structure dipole radiation unit 2-3 and the first cross-structure dipole radiation unit are symmetrically distributed with the plane quasi-yagi antenna axis.
When the dipole of the planar quasi-yagi antenna is a -shaped dipole radiation unit, a third substrate integrated waveguide structure 3-1 is arranged on a top metal layer, one end of the third substrate integrated waveguide structure 3-1 is connected with a third tapered feed structure 3-2, the other end of the third tapered feed structure 3-2 is vertically connected with a first -shaped dipole radiation unit 3-3, and a third director 3-4 and a fourth director 3-5 are arranged beside the first -shaped dipole radiation unit 3-3 side by side; the bottom metal layer is provided with a fourth substrate integrated waveguide structure 4-1, one end of the fourth substrate integrated waveguide structure 4-1 is connected with a fourth conical gradual feed structure 4-2, and the other end of the fourth conical gradual feed structure 4-2 is vertically connected with a second -shaped dipole radiation unit 4-3; the direction difference between the first -shaped dipole radiating element 3-3 and the second -shaped dipole radiating element 4-3 is 180 degrees, and the first -shaped dipole radiating element and the second -shaped dipole radiating element are symmetrically distributed with the axis of the plane quasi-yagi antenna.
In the figure, a first substrate integrated waveguide structure 1-1, a second substrate integrated waveguide structure 2-1, a third substrate integrated waveguide structure 3-1 and a fourth substrate integrated waveguide structure 4-1 feed a first cross-structure dipole radiation unit 1-3, a second cross-structure dipole radiation unit 2-3, a first -shaped dipole radiation unit 3-3 and a second -shaped dipole radiation unit 4-3 through a first conical gradient feed structure 1-2, a second conical gradient feed structure 2-2, a third conical gradient feed structure 3-2 and a fourth conical gradient feed structure 4-2, dipoles are respectively arranged on an upper metal printing layer and a lower metal printing layer, and the upper metal printing layer and the lower metal printing layer have the same and symmetrical feed structures; the first director 1-4, the second director 1-5, the third director 3-4 and the fourth director 3-5 are parallel to the dipole and are positioned on the single-sided metal printing layer; the first cross structure dipole radiation unit 1-3, the second cross structure dipole radiation unit 2-3, the first word structure dipole radiation unit 3-3 and the second word structure dipole radiation unit 4-3 are loaded on a dipole arm of the antenna and are vertically symmetrical according to the structure of the antenna; the first cross-structure dipole radiation unit 1-3, the second cross-structure dipole radiation unit 2-3, the first -shaped structure dipole radiation unit 3-3 and the second -shaped structure dipole radiation unit 4-3 are rectangular, and the length of the first cross-structure dipole radiation unit is longer than the width of the dipole; the first cross structure dipole radiation unit 1-3 and the second cross structure dipole radiation unit 2-3 of the cross structure are respectively positioned on the dipole arms of the metal printing layers on the two sides; -shaped first -shaped dipole radiating element 3-3 and second -shaped dipole radiating element 4-3 are also respectively arranged on two sides of the metal printing layer, the -shaped structures on the same dipole arm should have proper distance, and the sizes of the two -shaped structures can be different.
FIG. 2 is a performance parameter diagram of the antenna applying the present invention in 45GHz frequency band, comparing the return loss S of the conventional structure dipole and the cross dipole11A parameter map (a) and an H-plane gain parameter map (b). As can be seen from the graph (a), the planar quasi-yagi antenna with the cross-structure dipole has lower return loss than the planar quasi-yagi antenna with the conventional structure, and the return loss is reduced by about 4.8 dB; meanwhile, the new structure has the trend of further expanding the bandwidth at 45 GHz. As can be seen from fig. (b), the planar quasi-yagi antenna of the cross structure has the same gain as the yagi antenna of the conventional structure, confirming that the planar quasi-yagi antenna of the new structure has no influence on the gain of the antenna.
Fig. 3 is a graph of antenna performance parameters for the application of the present invention to the 60GHz band. The return loss S of the conventional structure dipole, the cross structure dipole and the -shaped structure dipole are respectively compared11A parameter map (a) and an H-plane gain parameter map (b). As can be seen from the graph (a), the planar quasi-yagi antenna loaded with the novel structure greatly improves the return loss of the antenna, and the return loss of the antenna with the cross-structure dipole and the -shaped dipole is respectively reduced by 4.6dB and 8.4dB compared with the antenna with the traditional structure; meanwhile, in the 60GHz frequency band, compared with the antenna with the traditional structure, the cross and -shaped structure dipole antenna has the impedance bandwidth respectively increased by 5.1% and 8.5%, and is superior to the traditional structure; as can be seen from FIG. b, the cross and structure is evenCompared with the antenna with the traditional structure, the antenna with the pole structure has the advantages that the gain of the E surface is respectively increased by 0.1dB and 0.2 dB. The planar quasi-yagi antenna with the new structure can greatly improve the return loss and the impedance bandwidth of the antenna on the basis of not influencing the gain of the antenna.
Fig. 3 is a diagram of antenna performance parameters for applying the present invention to the 70GHz band. The return loss S of the traditional structure, the cross structure dipole and the -shaped dipole structure are respectively compared11A parameter map (a) and an H-plane gain parameter map (b). As can be seen from the graph (a), the planar quasi-yagi antenna loaded with the novel structure greatly improves the return loss of the antenna, and the return loss of the antenna with the cross and -shaped structure dipoles is respectively reduced by 4.8dB and 9.1dB compared with the antenna with the traditional structure; compared with the antenna with the traditional structure, the impedance bandwidth of the antenna with the cross dipole and the dipole is respectively improved by 1.5 percent and 5.6 percent; more importantly, as can be seen from the graph (b), the antenna gains of the three structures are basically the same, which shows that the antenna with the novel structure can further reduce the return loss and expand the impedance bandwidth at high frequency on the basis of maintaining high gain.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A planar quasi-yagi antenna based on substrate integrated waveguide and conical gradient structure feed is characterized by comprising a metal printing layer and a dielectric substrate layer, wherein the metal printing layer is printed on two sides of the dielectric substrate layer to form a top metal layer and a bottom metal layer; the metal printing layer comprises a substrate integrated waveguide, a conical gradual feed structure, a dipole radiation unit and a director; one end of the substrate integrated waveguide is connected with a conical gradient feed structure, the other end of the conical gradient feed structure is connected with a dipole radiation unit, and a director is arranged beside the dipole radiation unit.
2. The planar quasi-yagi antenna based on substrate integrated waveguide and tapered structure feed according to claim 1, wherein when the dipole of the planar quasi-yagi antenna is a cross-structure dipole radiating element, the top metal layer is provided with a first substrate integrated waveguide structure (1-1), one end of the first substrate integrated waveguide structure (1-1) is connected with a first tapered feed structure (1-2), the other end of the first tapered feed structure (1-2) is vertically connected with a first cross-structure dipole radiating element (1-3), and a first director (1-4) and a second director (1-5) are arranged beside the first cross-structure dipole radiating element (1-3) side by side; the bottom metal layer is provided with a second substrate integrated waveguide structure (2-1), one end of the second substrate integrated waveguide structure (2-1) is connected with a second conical gradient feed structure (2-2), the other end of the second conical gradient feed structure (2-2) is vertically connected with a second cross-structure dipole radiation unit (2-3), and the direction difference between the second cross-structure dipole radiation unit (2-3) and the first cross-structure dipole radiation unit (1-3) is 180 degrees and is symmetrically distributed with the plane quasi-yagi antenna axis.
3. The planar quasi-yagi antenna based on substrate integrated waveguide and tapered transition structure feed as claimed in claim 1, wherein when the dipole of the planar quasi-yagi antenna is -shaped dipole radiating element, the top metal layer is provided with a third substrate integrated waveguide structure (3-1), one end of the third substrate integrated waveguide structure (3-1) is connected with a third tapered transition feeding structure (3-2), the other end of the third tapered transition feeding structure (3-2) is vertically connected with a first -shaped dipole radiating element (3-3), and a third director (3-4) and a fourth director (3-5) are arranged beside the first -shaped dipole radiating element (3-3) side by side; a fourth substrate integrated waveguide structure (4-1) is arranged on the bottom metal layer, one end of the fourth substrate integrated waveguide structure (4-1) is connected with a fourth tapered gradual feed structure (4-2), and the other end of the fourth tapered gradual feed structure (4-2) is vertically connected with a second -shaped dipole radiation unit (4-3); the direction difference between the first -shaped dipole radiating element (3-3) and the second -shaped dipole radiating element (4-3) is 180 degrees, and the first -shaped dipole radiating element and the second -shaped dipole radiating element are symmetrically distributed with the axis of the plane quasi-yagi antenna.
4. The substrate integrated waveguide and tapered structure feed based planar quasi-yagi antenna as claimed in claim 2 or 3, wherein the first cross structure dipole radiating element (1-3), the second cross structure dipole radiating element (2-3), the first word structure dipole radiating element (3-3), the second word structure dipole radiating element (4-3) are rectangular in shape with length longer than the dipole radiating element width.
5. The planar quasi-yagi antenna based on substrate integrated waveguide and tapered transition structure feed of claim 2 or 3, wherein the first -shaped dipole radiating element (3-3) and the second -shaped dipole radiating element (4-3) have the same or different sizes.
6. The planar quasi-yagi antenna based on substrate integrated waveguide and tapered transition structure feed of claim 2 or 3, wherein the lengths of the first director (1-4), the second director (1-5) or the third director (3-4) and the fourth director (3-5) are smaller than the lengths of the first cross-structure dipole radiation element (1-3), the second cross-structure dipole radiation element (2-3) or the first -structure dipole radiation element (3-3) and the second -structure dipole radiation element (4-3).
7. The planar quasi-yagi antenna based on substrate integrated waveguide and tapered structure feed of claim 2 or 3, wherein the first director (1-4), the second director (1-5) or the third director (3-4) and the fourth director (3-5) have the same pitch.
8. The substrate integrated waveguide and tapered structure feed based planar quasi-yagi antenna as claimed in claim 2 or 3, wherein the first cross-structure dipole radiating element (1-3), the second cross-structure dipole radiating element (2-3), the first -structure dipole radiating element (3-3), the second -structure dipole radiating element (4-3) and the first director (1-4), the second director (1-5) or the third director (3-4), the fourth director (3-5) are printed on both sides of a metal printing plate, respectively; the number of directors is 1 to 4.
9. The planar quasi-yagi antenna based on substrate integrated waveguide and tapered graded structure feed according to claim 2, wherein the first tapered graded feed structure (1-2), the second tapered graded feed structure (2-2), the third tapered graded feed structure (3-2), the fourth tapered graded feed structure (4-2) or modified to microstrip line feed structure, coplanar stripline structure or coplanar waveguide structure, are printed on both sides of a double-sided metal printed board.
10. The substrate integrated waveguide and tapered structure feed based planar quasi-yagi antenna as claimed in claim 8, wherein the radiating structures of the first cross-structure dipole radiating element (1-3), the second cross-structure dipole radiating element (2-3), the first -structure dipole radiating element (3-3), the second -structure dipole radiating element (4-3) and the first director (1-4), the second director (1-5) or the third director (3-4), the fourth director (3-5) are changed into a "V" -type radiating structure, a "one" -type double dipole radiating structure.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114824758A (en) * | 2022-04-21 | 2022-07-29 | 南京理工大学 | Low-profile miniaturized wide-bandwidth beam antenna |
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| CN101656351A (en) * | 2009-06-10 | 2010-02-24 | 东南大学 | Wideband Yagi aerial for half-mould substrate integrated waveguide feed |
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| CN105934851A (en) * | 2014-01-08 | 2016-09-07 | 高通股份有限公司 | Quasi-yagi-type antenna |
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2021
- 2021-10-27 CN CN202111253926.8A patent/CN114006157B/en active Active
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| CN101656351A (en) * | 2009-06-10 | 2010-02-24 | 东南大学 | Wideband Yagi aerial for half-mould substrate integrated waveguide feed |
| CN105934851A (en) * | 2014-01-08 | 2016-09-07 | 高通股份有限公司 | Quasi-yagi-type antenna |
| KR101630674B1 (en) * | 2015-09-03 | 2016-06-15 | 동서대학교산학협력단 | Double dipole quasi-yagi antenna using stepped slotline structure |
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| PEIGEN ZHOU等: "A −28.5-dB EVM 64-QAM 45-GHz Transceiver for IEEE 802.11aj", IEEE JOURNAL OF SOLID-STATE CIRCUITS, pages 3077 - 3093 * |
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| CN114824758A (en) * | 2022-04-21 | 2022-07-29 | 南京理工大学 | Low-profile miniaturized wide-bandwidth beam antenna |
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