Full-wave oscillator with novel feed mode

Abstract

The invention discloses a full-wave oscillator with a novel feeding mode. The full-wave oscillator comprises a radiation metal plate, a coaxial cable and a coupling feeding plate, the coupling feed panel and the radiation metal plate are relatively parallel and are arranged at an interval, and the coaxial cable is electrically connected with the coupling feed panel so as to feed the radiation metal plate; wherein the coupling feed panel comprises symmetrical coupling parts which are orthogonally arranged; each symmetrical coupling part comprises a pair of coupling surfaces which are correspondingly coupled with a pair of oscillator arms of the radiation metal plate; and the overlapping coupling area of the coupling surface and the oscillator arm accounts for 10-15% of the area of the oscillator arm. The full-wave oscillator with the novel feed mode provided by the invention has a relatively wide working bandwidth, the bandwidth proportion is up to 33%, a directional diagram is convergent, the gain is relatively high, and the full-wave oscillator has a gain of 9.8-10.3 db on a frequency band of 690-960 Mhz.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and in particular, to a full-wave dipole with a novel feeding method. Background Art

[0002] The existing feeding methods of full-wave dipoles mainly include direct feeding and coupled balun feeding.

[0003] Among them, for the full-wave dipole with the direct feeding method, the ground layer and the core of the coaxial cable 1' are respectively connected to two dipole arms 2' for feeding, as Figure 17 shown. Although the structure is simple and the cost is low, due to the presence of the dielectric plate, the loss is large, and thus the gain is low.

[0004] For the full-wave dipole with the coupled balun feeding method, a quarter-wavelength open circuit line is used to be coupled on the balun 3' to feed the dipole arms 2', as Figure 21 shown, which shows an integrally die-cast full-wave dipole with the balun coupled feeding method. Although the structure is simple and the gain is high, it requires mold opening and electroplating, which are not only costly but also environmentally unfriendly, and the bandwidth is narrow, about 16%. Because the operating frequency is determined by its physical length (the length is about one wavelength), its resonant frequency range is narrow. When the frequency deviates from the resonant point, the impedance matching and radiation efficiency of the antenna will decrease significantly, resulting in a limited effective bandwidth; this resonant characteristic makes the integrally die-cast full-wave dipole can only maintain high-efficiency radiation within a narrow frequency range. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a full-wave dipole with a novel feeding method.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A full-wave dipole with a novel feeding method, which includes a radiation metal plate, a coaxial cable, and a coupled feeding plate; the coupled feeding plate is relatively parallel and spaced apart from the radiation metal plate, and the coaxial cable is electrically connected to the coupled feeding plate to feed the radiation metal plate; wherein, the coupled feeding plate includes symmetric coupling parts arranged orthogonally; each symmetric coupling part includes a ground coupling surface and a feeding coupling surface arranged diagonally, corresponding to coupling a pair of dipole arms of the radiation metal plate; the overlapping coupling area S between the coupling surface and the dipole arm accounts for 10-15% of the area of the dipole arm.

[0007] Further, the ground coupling surface and the feeding coupling surface arranged diagonally are coupled through a microstrip line; the core of the coaxial cable is welded to the feeding hole on the microstrip line connected to the ground coupling surface.

[0008] Furthermore, the coupled feed board further includes a dielectric board, and the symmetric coupling parts arranged orthogonally include two pairs of front coupling surfaces and two pairs of back coupling surfaces formed on the front and back sides of the dielectric board respectively; along the thickness direction of the dielectric board, the coupling surfaces of the two pairs of front coupling surfaces and the two pairs of back coupling surfaces overlap each other and are electrically connected.

[0009] Furthermore, the coupled feed board is fixedly and insulatingly connected under the radiation metal plate, and the radiation metal plate and the coupled feed board are parallel to each other and there is a gap therebetween.

[0010] Furthermore, at least one through hole is formed on each of the coupling surfaces.

[0011] Furthermore, an insulating board is arranged between the coupled feed board and the radiation metal plate.

[0012] Furthermore, the coupling surface is a copper-clad surface formed on the dielectric board, and its shape is square.

[0013] Furthermore, there is a gap between adjacent coupling surfaces.

[0014] Furthermore, it further includes an oscillator base for connecting the end of the coaxial cable far from the coupled feed board to the reflection metal plate.

[0015] Furthermore, the radiation metal plate is an integrally formed metal aluminum plate.

[0016] The present invention has the following beneficial effects: The full-wave oscillator with the novel feeding method provided by the present invention has a relatively wide operating bandwidth, and the bandwidth ratio is as high as 33%. The radiation pattern converges and the gain is relatively high, and there is a gain of 9.8 dB - 10.3 dB in the frequency band of 690 MHz - 960 MHz.

[0017] The radiation metal plate made of metal aluminum plate has high chemical stability and strong corrosion resistance, and also has advantages in terms of cost compared with the traditional die-cast oscillator. It eliminates multiple processes such as mold opening and electroplating, and greatly reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the full-wave oscillator of the present invention; Figure 2 is another schematic structural diagram of the full-wave oscillator of the present invention; Figure 3 is Figure 2 the top view of Figure 4 is Figure 2 the exploded schematic diagram; Figure 5 is Figure 2 the enlarged schematic diagram at A in Figure 6 Front view schematic diagram of the coupling feed board of the present invention; Figure 7 Back view schematic diagram of the coupling feed board of the present invention; Figure 8 Is Figure 2 Front view of the full-wave dipole shown; Figure 9 Is Figure 8 Enlarged schematic diagram at position B in Figure 10 Top view of the radiation metal plate of the present invention; Figure 11 Structural schematic diagram of the coupling feed board, coaxial cable and oscillator base of the present invention; Figure 12 Circuit path diagram of the full-wave dipole simulation test of the non-through-hole coupling feed board of the present invention; Figure 13 Circuit path diagram of the full-wave dipole simulation test of the through-hole coupling feed board of the present invention; Figure 14 Standing wave diagram of the full-wave dipole simulation test of the novel feed method of the present invention; Figure 15 Pattern diagram of the full-wave dipole simulation test of the novel feed method of the present invention; Figure 16 Gain data diagram of the full-wave dipole simulation test of the novel feed method of the present invention; Figure 17 Structural schematic diagram of the full-wave dipole of the existing direct feed method; Figure 18 Standing wave diagram of the full-wave dipole simulation test of the existing direct feed method; Figure 19 Pattern diagram of the full-wave dipole simulation test of the existing direct feed method; Figure 20 Gain data diagram of the full-wave dipole true test of the existing direct feed method; Figure 21 Structural schematic diagram of the full-wave dipole of the existing balun feed method; Figure 22 Standing wave diagram of the full-wave dipole simulation test of the existing balun feed method; Figure 23 Pattern diagram of the full-wave dipole simulation test of the existing balun feed method; Figure 24 Gain data diagram of the full-wave dipole true test of the existing balun feed method. Detailed implementation manners

[0019] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-11 , which shows a full-wave dipole with a new feeding method. Figure 2 is Figure 1 a schematic structural diagram without showing the reflection metal plate 6. As Figure 2-11 shown, the full-wave dipole with the new feeding method includes a radiation metal plate 1, a coaxial cable 2, and a coupling feeding plate 3; the coupling feeding plate 3 is relatively parallel and spaced apart from the radiation metal plate 1, and the coaxial cable 2 is electrically connected to the coupling feeding plate 3 to feed the radiation metal plate 1.

[0021] The coupling feeding plate 3 includes a dielectric plate 31 and symmetric coupling portions 32, 33 provided on the dielectric plate 31 and arranged orthogonally; each pair of symmetric coupling portions 32, 33 includes ground coupling surfaces 32a, 33a and feeding coupling surfaces 32b, 33b arranged diagonally (32a and 32b are a pair, 33a and 33b are a pair, the same below), corresponding to a pair of dipole arms 11a, 11b, 12a, 12b of the radiation metal plate 1; wherein, the overlapping coupling area S between each coupling surface 32a, 32b, 33a, 33b and each dipole arm 11a, 11b, 12a, 12b accounts for 10-15% of the area of each dipole arm 11a, 11b, 12a, 12b.

[0022] Exemplarily, please refer to Figure 6 , the ground coupling surfaces 32a, 33a and the feeding coupling surfaces 32b, 33b are coupled through a microstrip line 34; the core 21 of the coaxial cable 2 is welded to the feeding hole 35 on the microstrip line 34 connected to the ground coupling surfaces 32a, 33a. Designed in this way, in the feeding part, compared with the traditional feeding method, it has a larger coupling area S, can provide more resonance points, and thus realizes a wider working bandwidth. At the same time, the coupling area S is also increased in the grounding part, which can better balance the current on the dipole and make it easier for the dipole to achieve impedance matching. Moreover, the proportion of the coupling area S should not be too large. After exceeding 15%, the standing wave performance will deteriorate.

[0023] Exemplarily, please refer to Figure 6, located on the same layer of the dielectric plate 31, there are gaps 36 between adjacent coupling surfaces 32a, 32b, 33a, 33b for impedance matching. Preferably but not limited to, the width of the gap 36 is 1-5 mm, which can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc.

[0024] Exemplarily, on one side of the dielectric plate 31, such as the front surface 31a, there are symmetric coupling parts 32, 33 arranged orthogonally. Since there are no symmetric coupling parts 32, 33 on the back surface 31b, there will be an extra layer of dielectric, resulting in losses. To solve this problem, symmetric coupling parts 32, 33 arranged orthogonally can be provided on both sides of the dielectric plate 31, that is, on the front surface 31a of the dielectric plate 31, there are two pairs of front coupling surfaces and on the back surface 31b, there are two pairs of back coupling surfaces. Please refer to Figure 6 , 7 . Each pair of front coupling surfaces and each pair of back coupling surfaces each include ground coupling surfaces 32a, 33a arranged diagonally and feed coupling surfaces 32b, 33b. Along the thickness direction of the dielectric plate 31, the respective coupling surfaces 32a, 32b, 33a, 33b of the two pairs of front coupling surfaces and the two pairs of back coupling surfaces overlap each other and are electrically connected through metal vias. Such a design can reduce the loss of the dielectric plate 31 to the gain to achieve higher gain.

[0025] Exemplarily, please refer to Figure 6 , 7 , the metal vias include first metal vias 37 and second metal vias 38; the ground coupling surfaces 32a, 33a located on the front and back surfaces 31a, 31b of the dielectric plate 31 and corresponding to each other are electrically connected through the first metal vias 37; the feed coupling surfaces 32b, 33b located on the front and back surfaces 31a, 31b of the dielectric plate 31 and corresponding to each other are electrically connected through the second metal vias 38.

[0026] Exemplarily, the coupling surfaces 32a, 32b, 33a, 33b are copper-clad surfaces formed on the dielectric plate 31, and their shapes can be square or other shapes, that is, they can be flexibly set, or other polygons that meet the aforementioned symmetric characteristics.

[0027] Exemplarily, please refer to Figure 6 , 7, on the same pair of front coupling surfaces, one end of the microstrip line 34 is connected to the ground coupling surfaces 32a and 33a, and the other end extends or extends through a via to the feed hole 35. The feed hole 35 is located at the concave position at the diagonal of the feed coupling surfaces 32b and 33b close to the ground coupling surfaces 32a and 33a, but is not connected to the feed coupling surfaces 32b and 33b. In the +45° direction, the microstrip line 34 is the first microstrip line 341, one end is directly connected to the diagonal of the ground coupling surfaces 32a and 33a, and the other end extends and is connected to the feed hole 35, and is coupled and connected to the feed coupling surfaces 32b and 33b. In the -45° direction, the microstrip line 34 includes a second microstrip line 342 and a third microstrip line 343. One end of the second microstrip line 342 is connected to the feed hole 35 and is coupled and connected to the feed coupling surfaces 32b and 33b; the other end is connected to the metallized via 439. One end of the third microstrip line 343 located on the reverse side 31b of the dielectric substrate 31 is connected to the metallized via 439, and the other end is connected to the ground coupling surfaces 32a and 33a located on the reverse side 31b of the dielectric substrate 31, and is conducted to the ground coupling surfaces 32a and 33a located on the front side 31a of the dielectric substrate 31 through a metal via.

[0028] Exemplarily, please refer to Figure 6 、 7 , the feed hole 35 is located on one side of the front side 31a of the dielectric substrate 31, and a first solder deposit 351 is provided at its edge. The core 21 of a coaxial cable 2 passes through the feed hole 35 and is welded to the first solder deposit 351 for feeding the feed coupling surfaces 32b and 33b in two polarization directions, and then the feed coupling surfaces 32b and 33b are used to couple and feed the oscillator arms 11a, 11b, 12a, and 12b. The feed hole 35 is located on one side of the reverse side 31b of the dielectric substrate 31, and a second solder deposit 352 is provided at its edge. The shield layer 22 of a coaxial cable 2 abuts against the second solder deposit 352 and is welded together, and the core 21 provided in the shield layer 22 passes through the feed hole 35 and is welded to the first solder deposit 351. The first metal via 37 is located on one side of the reverse side 31b of the dielectric substrate 31, and a third solder deposit 371 is provided at its edge. The shield layers 22 of other coaxial cables 2 are welded to the third solder deposit 371, but the core 21 does not pass through the first metal via 37. Specifically, the shield layers 22 of four coaxial cables 2 are welded to the second solder deposit 352 and the third solder deposit 371 for connecting and supporting the coupling feed plate 3 and the radiation metal plate 1, that is, one side of the coaxial cable 2 is vertically connected to the coupling feed plate 3.

[0029] Exemplarily, please refer to Figure 8 、 9 , the coupling feed plate 3 and the radiation metal plate 1 are arranged parallel to each other at intervals. The coupling feed plate 3 is fixedly and insulatingly connected under the radiation metal plate 1, preferably but not limited to being fixedly connected to the radiation metal plate 1 by an insulating rivet. Specifically, please refer to Figure 1-7, through holes 4 are provided on both the coupling feed plate 3 and the radiation metal plate 1, facilitating the passing of insulating rivets to rivet the coupling feed plate 3 to the radiation metal plate 1. Further, at least one through hole 4 is provided on each of the coupling surfaces 32a, 32b, 33a, 33b. In specific implementation, one through hole 4, two through holes 4, three through holes 4, etc. are provided on each of the coupling surfaces 32a, 32b, 33a, 33b, and corresponding through holes 4 of the same quantity are also provided on the oscillator arms 11a, 11b, 12a, 12b. With such a structural design, opening holes on the oscillator arms 11a, 11b, 12a, 12b and the coupling surfaces 32a, 32b, 33a, 33b can increase the current path to a certain extent while fixing each other, thereby increasing the resonant points and expanding the frequency bandwidth. As Figure 12 shown, this figure is the current path simulated without opening holes on the coupling surface. However, if the current path can be extended, the frequency bandwidth can be broadened. As Figure 13 shown, by opening through holes 4 on the coupling surfaces 32a, 32b, 33a, 33b, the current will flow around the through holes 4. From Figure 12 , 13 it can be seen that obviously the current path is increased. Therefore, the through hole 4 can serve two purposes, ensuring both electrical performance and reliability.

[0030] Exemplarily, the coupling feed plate 3 and the radiation metal plate 1 can be fixedly connected by an insulating rivet (not shown in the figure) passing through the through hole 4, not only being parallel to each other but also having a gap 7. As Figure 9 shown, the height of the gap 7 can be 0.1 - 0.4 mm. Since there is a gap between the coupling feed plate 3 and the radiation metal plate 1, a parasitic capacitance will be generated, and the parasitic capacitance will increase the electrical length, further improving the working bandwidth of the oscillator. Preferably, an insulating plate (not shown in the figure) is provided between the coupling feed plate 3 and the radiation metal plate 1 to make them parallel and insulated from each other, that is, an insulating plate is selected to fill the gap 7. Preferably but not limited to, the insulating plate is selected from thin insulating plates with a relatively low dielectric constant, such as an insulating plate with a thickness of 0.1 - 0.4 mm, facilitating the insulation setting between the coupling feed plate 3 and the radiation metal plate 1 and reducing the intermodulation.

[0031] Exemplarily, please refer to Figure 4 , 10, the radiation metal plate 1 is an integrally formed aluminum metal plate. The radiation metal plate 1 has two symmetric oscillators 11 and 12 arranged orthogonally. Each pair of symmetric oscillators 11 and 12 includes two oscillator arms 11a, 11b, 12a, and 12b arranged diagonally. Fine slits 13 are provided between adjacent oscillator arms 11a, 11b, 12a, and 12b. Hollow portions 14 are provided inside the oscillator arms 11a, 11b, 12a, and 12b. The respective hollow portions 14 and the fine slits 13 are mainly for appropriate impedance matching and isolation optimization. In this embodiment, the radiation metal plate 1 can be composed of four oscillator arms 11a, 11b, 12a, and 12b with heart-shaped-like hollows connected end to end. It can be understood that it can also be other structures of the oscillator arms 11a, 11b, 12a, and 12b. Specifically, the symmetric oscillators 11 and 12 are directly formed by stamping on the aluminum metal plate at one time without a dielectric plate 31. It should be noted that it can also be grooved on the entire aluminum plate. Using the aluminum metal plate to form the radiation metal plate 1, aluminum has high chemical stability and strong corrosion resistance. In terms of cost, it also has advantages compared with traditional die-cast oscillators, eliminating multiple processes such as mold opening and electroplating, and greatly reducing the cost.

[0032] Exemplarily, please refer to Figure 10 , each oscillator arm 11a, 11b, 12a, and 12b includes a first L-shaped arm 16 and a second L-shaped arm 17. As shown in the figure, after the radiation metal plate 1 is fixedly connected to the coupling feeding plate 3 in the vertical direction, the first L-shaped arm 16 serves as a coupling area and is arranged to overlap with the coupling surfaces 32a, 32b, 33a, and 33b. The two second L-shaped arms 17 are respectively connected to the outer sides of the two ends of the first L-shaped arm 16. The ends of the two second L-shaped arms 17 away from the first L-shaped arm 16 are arranged to be close to each other, and both are connected with support arms 18. Both support arms 18 have hypotenuses 181, and the hypotenuses 181 of the two support arms 18 are arranged parallel to each other at intervals. As shown in the figure, the first L-shaped arm 16, the second L-shaped arm 17, and the support arm 18 enclose a hollow portion 14. The first L-shaped arms 16 of the four oscillator arms 11a, 11b, 12a, and 12b are arranged orthogonally to enclose a central hollow 15 to expose the welding area of the coupling feeding plate 3, which is used for welding connection with the wire core 21 of the coaxial cable 2.

[0033] Exemplarily, please refer to Figure 1 , 2, 4, 5, 11, this application includes four coaxial cables 2, all of which have a coaxially arranged core 21 and a shielding layer 22, and the shielding layer 22 is wrapped around the outer periphery of the core 21. The cores 21 and the shielding layers 22 of two of the coaxial cables 2 are of the same length and are the first group of coaxial cables. The two ends of the shielding layer 22 are respectively welded to the solder deposits (the second solder deposit 352 and the third solder deposit 371) on the reverse side 31b of the coupling feed plate 3 and the fifth solder deposit of the oscillator base 5, and the cores 21 are not welded. The cores 21 of the other two coaxial cables 2 are longer than the shielding layers 22 and are the second group of coaxial cables. The two ends of each core 21 extend outwards on both sides of the shielding layer 22 respectively, facilitating welding and feeding with the first solder deposit 351 of the coupling feed plate 3 and the fourth solder deposit 52 of the oscillator base 5 respectively, as shown in Figure 5 , 11 . The two ends of the shielding layer 22 of the second group of coaxial cables are respectively welded to the solder deposits (the second solder deposit 352 and the third solder deposit 371) on the reverse side 31b of the coupling feed plate 3 and the fifth solder deposit of the oscillator base 5.

[0034] Exemplarily, please refer to Figure 1 , 2 , 4, 11, this application includes an oscillator base 5. Two fourth solder deposits 52 are provided in the copper foil surface 51 on the plane of the oscillator base 5 away from the coupling feed plate 3, which are respectively welded to the two cores 21 and can be welded to two polarized external feed networks. The fourth solder deposits 52 are insulated from the copper foil surface 51; four fifth solder deposits are provided in the copper foil surface 51 on the plane of the oscillator base 5 facing the coupling feed plate 3, which are respectively welded to the four shielding layers 22 of the coaxial cable 2 to realize the vertical connection between the coaxial cable 2 and the oscillator base 5. The copper foil surfaces 51 on different surfaces of the oscillator base 5 are electrically connected to each other through metallized holes.

[0035] The oscillator base 5 is fixedly connected to the reflective metal plate 6 through an insulating rivet (not shown in the figure), preferably but not limited to being fixedly connected to the reflective metal plate 6 through an insulating rivet (not shown in the figure). Specifically, openings are provided on both the oscillator base 5 and the reflective metal plate 6 to facilitate the insulating rivet (not shown in the figure) to pass through and rivet the oscillator base 5 to the reflective metal plate 6.

[0036] Exemplarily, the dielectric plates 31 of the coupling feed plate 3 and the oscillator base 5 are epoxy plates. It can be understood that the coupling feed plate 3 and the oscillator base 5 are made of a PCB board using a Fr4 epoxy plate.

[0037] The assembly process of the full-wave dipole with the novel feeding method of the present invention is as follows: First, both sides of the coaxial cable 2 are respectively welded to the coupling feeding plate 3 and the dipole base 5. Specifically, the two ends of the wire cores 21 of the two coaxial cables 2 respectively pass through the feeding holes 35 of the coupling feeding plate 3 and the dipole base 5 and are welded to the first solder pad 351 and the fourth solder pad 52. The shielding layers 22 of the four coaxial cables are respectively abutted and welded to the second solder pad 352, the third solder pad 371 and the fifth solder pad on the coupling feeding plate 3 and the dipole base 5. Through the coaxial cable 2, the coupling feeding plate 3 and the dipole base 5 are parallel to each other, and both the coupling feeding plate 3 and the dipole base 5 are vertically arranged relative to the coaxial cable 2. Then, after placing the insulating plate behind the coupling feeding plate 3, the coupling feeding plate 3 is riveted and fixedly connected to the radiation metal plate 1 through an insulating rivet, and the insulating plate is interposed between the coupling feeding plate 3 and the radiation metal plate 1. Finally, the dipole base 5 is riveted and fixedly connected to the reflection metal plate 6 through an insulating rivet.

[0038] Please refer to Figure 14-16 , it can be seen from the standing wave diagram that the bandwidth of the full-wave dipole with the novel feeding method is 0.69 - 0.96 GHz. It can be observed that the bandwidth is very wide, and the bandwidth ratio is as high as 33%, while the bandwidth ratio of the full-wave dipole with the existing direct feeding method is about 29% (as shown in Figure 18 ); the bandwidth ratio of the full-wave dipole with the existing balun feeding method is about 16% (as shown in Figure 22 ). It can be seen from the radiation pattern that the direction Figure 1 is highly consistent and relatively convergent. From the gain data, it can be seen that within this frequency band, the gain data shows that the gain is relatively high, with a gain of 9.8 dB - 10.3 dB in the frequency band of 690 MHz - 960 MHz (as shown in Figure 16 ), which is basically close to the gain of the full-wave dipole with the existing balun feeding method (as shown in Figure 24 ), while the full-wave dipole with the existing direct feeding method only has a gain of 9.17 - 9.94 dB (as shown in Figure 20 ).

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0041] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent substitution on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields shall be within the scope of the patent protection of the present application by the same token.

Claims

1. A full-wave oscillator with a new feeding method, characterized in that: It includes a radiation metal plate, a coaxial cable and a coupling feed plate; the coupling feed plate is relatively parallel to the radiation metal plate and spaced apart, and the coaxial cable is electrically connected to the coupling feed plate to feed the radiation metal plate; wherein, The coupling and feeding plate includes orthogonally arranged symmetrical coupling parts; each symmetrical coupling part includes a diagonally arranged ground coupling surface and a feeding coupling surface, corresponding to a pair of dipole arms coupled to the radiating metal plate; the overlapping coupling area S between the ground coupling surface or the feeding coupling surface and the dipole arm accounts for 10-15% of the area of ​​the dipole arm.

2. The full-wave oscillator with a new feeding method according to claim 1 is characterized in that: The diagonally arranged ground coupling surface and the feeding coupling surface are coupled via a microstrip line; the core of the coaxial cable is welded to the feeding hole on the microstrip line connected to the ground coupling surface.

3. The full-wave oscillator with a new feeding method according to claim 2 is characterized in that: The coupling feed plate also includes a dielectric plate, and the orthogonally arranged symmetrical coupling portion includes two pairs of front coupling surfaces and two pairs of rear coupling surfaces respectively formed on the front and rear surfaces of the dielectric plate; along the thickness direction of the dielectric plate, the two pairs of front coupling surfaces and the two pairs of rear coupling surfaces overlap with each other and are electrically conductive.

4. The full-wave oscillator with a new feeding method according to claim 3 is characterized in that: The coupling feeding plate is fixed and insulatedly connected under the radiation metal plate, and the radiation metal plate and the coupling feeding plate are parallel to each other with a gap therebetween.

5. The full-wave oscillator with a new feeding method according to claim 3 is characterized in that: Each coupling surface is provided with at least one through hole.

6. The full-wave oscillator with a new feeding method according to claim 3 is characterized in that: An insulating plate is arranged between the coupling feeding plate and the radiation metal plate.

7. The full-wave oscillator with a new feeding method according to claim 3 is characterized in that: The coupling surface is a copper-clad surface formed on the dielectric board, and its shape is square.

8. The full-wave oscillator with a new feeding method according to claim 3 is characterized in that: There are gaps between adjacent coupling surfaces.

9. A full-wave oscillator with a new feeding method according to any one of claims 1 to 8, characterized in that: It also includes a vibrator base, which is used to connect the end of the coaxial cable away from the coupling feeding plate to the reflective metal plate.

10. The full-wave oscillator with a new feeding method according to claim 1 is characterized in that: The radiation metal plate is an integrally formed metal aluminum plate.

Images