CN104134852A - Broadband dual-polarized oscillator - Google Patents

Abstract

The invention discloses a broadband dual-polarized oscillator. With the adoption of an excellent structural design, a semiconductor is creatively adopted onto an oscillator piece, a semiconductor structure is combined with the oscillator, through continual tests, the rectangular metal oscillator piece is designed and a semiconductor ring is arranged at the periphery of the oscillator piece, with the adoption of the structural design on the metal oscillator piece, flow length and speed of radiation signal stream on the metal oscillator piece are greatly improved, the working frequency band of the broadband antenna reaches 3,000MHz through simulation of a large number of computer software, the standard of 4G (four-generation) on frequency requirement is completely satisfied, relative bandwidth reaches 65.9 percent, the broadband dual-polarized oscillator has favorable gain and characteristics of front-to-rear ratio and cross polarization ratio.

Description

Broadband Dual Polarizer

technical field

The invention relates to the field of antennas, in particular to a broadband dual-polarization vibrator.

Background technique

At present, 4G networks are becoming more and more popular, and 5G networks have also appeared in some countries; from the perspective of operators, in order to save investment and consider how to achieve scalability, compatibility, multi-system and multi-standard coexistence, it has become more and more become a trend. In this way, higher requirements are also put forward for base station antennas. In order to meet the frequencies of different standards, ultra-wideband base station antennas such as 2000~3000MHz frequency bands have been widely proposed; and to realize the broadbandization of base station antennas, the first thing to face is to serve as its core The bandwidth expansion of the radiation unit of the component is a big challenge, how to maintain high gain, beam convergence consistency, good front-to-back ratio and high cross-polarization ratio in the entire broadband frequency band; especially the ultra-wideband problem, An oscillator that meets the requirements of high-frequency bands such as 5G and 4G (LTE) and an antenna made of the oscillator are problems that need to be solved urgently.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcomings, and provide a broadband dual-polarization vibrator with ultra-wide radiation frequency, good front-to-back ratio and high cross-polarization characteristics.

In order to achieve the above object, the specific solution of the present invention is as follows: the broadband dual-polarized vibrator includes a supporting balun plate, and the supporting balun plate is provided with two groups of metal vibrator pieces in a rectangular shape; The upper and lower metal oscillator pieces form a group for radiating vertically polarized signals, and the left and right metal oscillator pieces form a group for radiating horizontally polarized signals; between the upper and lower metal oscillator pieces A first feeding strip line is provided, and a second feeding strip line is provided between the left and right metal vibrator pieces; a first coaxial cable feeding hole is provided on the supporting balun board, and the first coaxial cable feeding hole is provided on the first The coaxial cable feeding hole is electrically connected with the first feeding strip line; the second coaxial cable feeding hole is also provided on the supporting balun board, and the second coaxial cable feeding hole is connected with the second feeding Wired electrical connection;

The edge of each metal vibrator piece is provided with an outer isolation ring, and each metal vibrator piece is provided with a plurality of first isolation blocking holes arranged side by side near the two sides, and the middle part of each metal vibrator piece is also There are a plurality of second isolation and blocking holes arranged side by side, and the second isolation and blocking holes are all circular; the outer isolation ring is a semiconductor, and the inside of the first isolation and blocking holes and the second isolation and blocking holes are all circular. filled with semiconductors;

Each metal vibrator piece is provided with a rectification structure for rectification on the side away from the supporting balun plate. The rectification structure is rectangular, and the rectification structure includes a plurality of rectification grooves arranged side by side. rectification channels; the rectification grooves are also filled with semiconductors.

Wherein, the first isolation and blocking holes are parallel rectangles; the lengths of the upper and lower sides of the first isolation and blocking holes are both 4mm-7mm.

Wherein, the semiconductor is gallium arsenide semiconductor.

Wherein, the thickness of each metal oscillator piece is 2mm-2.5mm.

Wherein, the number of the first isolation and blocking holes is eight.

Wherein, the number of the second isolation and blocking holes is five.

Wherein, the distance between the first coaxial cable feeding hole and the second coaxial cable feeding hole is greater than 4cm.

Wherein, the supporting balun board is circular; the supporting balun board is a PCB board with a diameter of 10 cm.

Wherein, the width of the metal vibrator piece is 6 cm.

The beneficial effects of the present invention are: through excellent structural design, creatively apply the semiconductor to the vibrator piece, combine the semiconductor structure with the vibrator, and design a rectangular metal vibrator piece with a semiconductor ring on the periphery and a metal vibrator through continuous experiments. The on-chip structural design has greatly improved the length and speed of the radiation signal flow in the flow direction of the metal vibrator piece. Through a large number of computer software simulations, it has been found that its working frequency band has reached 3000MHz, which fully meets the frequency requirements of 4G and the next generation 5G. , the relative bandwidth reaches 65.9%, and it has good gain, front-to-back ratio, and cross-polarization ratio characteristics.

Description of drawings

Fig. 1 is a top view of the present invention;

Figure 2 is a partially enlarged view of Figure 1;

Figure 3 is a shunt diagram of the radiation signal when it encounters the rectification mechanism;

Fig. 4 is a sectional view of the present invention;

Fig. 5 is the bandwidth emulation experiment data figure of the present invention;

Fig. 6 is the gain simulation experiment data figure of the present invention;

Explanation of reference numerals among Fig. 1 to Fig. 6:

1-supporting balun plate; 10-convergence gap;

11-the first feeder strip line; 12-the second feeder strip line;

11a-the first coaxial cable feed; 12a-the second coaxial cable feed;

3-Metal vibrator piece;

4-outer isolation ring;

5-rectification structure; 51-rectification channel;

6-the first isolation blocking hole;

7-the second isolation blocking hole;

9 - Barrier holes.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

As shown in Figures 1 to 6, the broadband dual-polarized vibrator described in this embodiment includes a supporting balun plate 1, and two groups of supporting balun plates 1 are arranged on the supporting balun plate 1, each group is two, and is rectangular. The metal vibrator piece 3; the upper and lower metal vibrator pieces 3 form a group for radiating vertically polarized signals, and the left and right two metal vibrator pieces 3 form a group for radiating horizontally polarized signals; A first feeder strip line 11 is provided between the upper and lower metal oscillator pieces 3, and a second feeder belt line 12 is provided between the left and right metal oscillator pieces 3; the supporting balun board 1 is provided with The first coaxial cable feed 11a hole, the first coaxial cable feed 11a hole is electrically connected to the first feed strip line 11; the supporting balun board 1 is also provided with a second coaxial cable feed 12a hole, the second coaxial cable feeder 12a hole is electrically connected to the second feeder strip line 12; the edge of each metal vibrator piece 3 is provided with an outer isolation ring 4, and each metal vibrator piece 3 There are a plurality of first isolation blocking holes 6 arranged side by side on the top and near the two sides, and a plurality of second isolation blocking holes 7 arranged side by side are also provided in the middle of each metal vibrator piece 3. The second isolation The blocking holes 7 are all circular; the outer isolation ring 4 is a semiconductor, and the first isolation blocking hole 6 and the second isolation blocking hole 7 are filled with semiconductors; each metal vibrator piece 3 A rectification structure 5 for rectification is provided on the side away from the supporting balun plate 1. The rectification structure 5 is rectangular. The rectification structure 5 includes a plurality of rectification grooves arranged side by side, and rectification channels 51 are arranged between the rectification grooves. ; The rectifier grooves are also filled with semiconductors. In the broadband dual-polarized vibrator described in this embodiment, the first isolation and blocking hole 6 is rectangular; the lengths of the upper and lower sides of the first isolation and blocking hole 6 are both 4mm-7mm. Further, after the coaxial cable of the first coaxial cable feeder 11a hole is connected to its feeder, it is connected to the first feeder strip line 11 to realize the feeder. Similarly, the coaxial cable of the second coaxial cable feeder 12a hole After the cable is connected to its feeder, it is connected to the second feeder strip line 12 to realize the feeder, and the radiation current is distributed and diffused. After the signal direction passes through the first isolation blocking hole 6 and the second isolation blocking hole 7, it has Higher convergence, ultra-high gain and ultra-wide frequency band, through computer software simulation, its longitudinal gain has reached nearly 13dBi; the second isolation blocking hole 7 is circular, and it is known through computer software simulation that the circular The shape of the second isolation blocking hole 7 can effectively increase the stability of the radiation signal when it flows through. Compared with the angular structure, it is more suitable for the needs of the vibrator with high radiation stability requirements; through the simulation of a large number of computer software, it has a working frequency band up to 3000MHz, which is higher than the current 4G frequency range. In the case of a large signal disturbance, a rectification structure 5 for rectification is provided on the side of the metal vibrator plate 3 away from the supporting balun board 1. The rectification structure 5 It is rectangular, and the rectification structure 5 includes a plurality of rectification grooves arranged side by side, rectification channels 51 are arranged between the rectification grooves, and through the rectification channels, it has a more stable edge radiation signal, which is known through computer software simulation, so that The gain is more stable, the convergence ratio is high, and the front-to-back ratio is prominent; the edge of each metal vibrator piece 3 is provided with an outer isolation ring 4, and the outer isolation ring 4 is a semiconductor, and the outer isolation ring 4 is a semiconductor. Vibrator isolation, it is known through computer software simulation that its isolation reaches 50db, which is much higher than that of ordinary vibrator, and the outer isolation ring 4 of semiconductor is used, which also has better beam convergence consistency. Both the first isolation and blocking hole 6 and the second isolation and blocking hole 7 are filled with semiconductors, which increases the gain and further increases the frequency bandwidth. Through the simulation of a large number of computer software, it can be concluded that its working frequency band has reached Nearly 3000MHz; Through excellent structural design, creatively apply semiconductors to the vibrator piece, combine the semiconductor structure with the vibrator, and through continuous experiments, design a rectangular metal vibrator piece 3 and a semiconductor ring on the periphery, and the metal vibrator piece 3. Structural design, the length and speed of the radiation signal flow in the metal vibrator piece 3 have been greatly improved. Through a large number of computer software simulations, it has been found that its working frequency band has reached 3000MHz, which fully meets the frequency requirements of 4G and the next generation of 5G. The relative bandwidth reaches 65.9%, and it has good gain, front-to-back ratio, and cross-polar ratio characteristics. The metal vibrator piece 3 is in the shape of a rectangle, and each corner is a chamfered structure, which can maintain the maximum distance between the vibrator pieces while keeping the current wider, increase its isolation, and enhance the anti-interference ability of the vibrator piece.

In the wide-band dual-polarization vibrator described in this embodiment, the semiconductor is a gallium arsenide semiconductor; through experiments and computer software simulation, it is known that the effect of gallium arsenide semiconductor is the best, and its excellent semiconductor characteristics increase the efficiency of the present invention. The frequency band range and the stability of the vibrator radiation are improved.

In the broadband dual-polarization vibrator described in this embodiment, the thickness of each metal vibrator piece 3 is 2mm-2.5mm; through multiple simulation experiments and structural design adjustments, when the thickness of the metal vibrator piece 3 is 2mm At -2.5mm, the radiation current is the most stable, the radiation is the most stable, it is not easy to generate standing waves and other interference bands, and the convergence is consistent.

The diameter of the second isolation and blocking hole 7 is 8 mm; through multiple simulation experiments and structural design adjustments, when the diameter of the second isolation and blocking hole 7 is 8 mm, it has good gain expandability, and the horizontal The gain is also close to 6dBi. The number of the first isolation and blocking holes 6 is eight; the number of the second isolation and blocking holes 7 is five. Through computer simulation, the effect is better when this number is used.

The distance between the hole of the first coaxial cable feeding 11a and the hole of the second coaxial cable feeding 12a is greater than 4cm; the supporting balun board 1 is circular; the supporting balun board 1 is a PCB board with a diameter of It is 10cm; in this way, it is known through computer software simulation that its isolation is greater.

The length of each side of the metal oscillator piece 3 is 6 cm; when the length of each side is 6 cm, its longitudinal length is just the half-wave length of the radiation wavelength, so it has good stability and does not generate clutter.

In the broadband dual-polarized vibrator described in this embodiment, a plurality of blocking holes 9 are provided between the two adjacent second isolation blocking holes 7, and the blocking holes 9 are filled with Semiconductor; the baffle hole 9 can further increase the turbulence effect and increase the bandwidth. It is known through computer software simulation that it can increase the bandwidth by about 3%.

In the broadband dual-polarized vibrator described in this embodiment, a V-shaped convergence gap 10 is provided on the side of the outer isolation ring 4 close to the rectification mechanism, which can effectively increase the convergence and isolation. Through computer simulation, Its performance has good convergence.

The above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present invention are included in the protection scope of the patent application of the present invention.

Claims (9)

1. A broadband dual-polarized vibrator, including a supporting balun plate (1), characterized in that: the supporting balun plate (1) is provided with two groups of metal vibrators in a rectangular shape. piece (3); the upper and lower metal vibrator pieces (3) form a group for radiating vertically polarized signals, and the left and right metal vibrator pieces (3) form a group for radiating horizontally polarized signals ; A first feeder stripline (11) is provided between the upper and lower metal vibrator pieces (3), and a second feeder stripline (12) is provided between the left and right two metal vibrator pieces (3) ; The supporting balun board (1) is provided with a first coaxial cable feeding (11a) hole, and the first coaxial cable feeding (11a) hole is electrically connected to the first feeding strip line (11) ; The supporting balun board (1) is also provided with a second coaxial cable feed (12a) hole, and the second coaxial cable feed (12a) hole is electrically connected to the second feed strip line (12) connect; The edge of each metal vibrator piece (3) is provided with an outer isolation ring (4), and each metal vibrator piece (3) is respectively provided with a plurality of first isolation blocking holes ( 6), the middle part of each metal vibrator piece (3) is also provided with a plurality of second isolation blocking holes (7) arranged side by side, and the second isolation blocking holes (7) are all circular; the The outer isolation ring (4) is a semiconductor, and the first isolation blocking hole (6) and the second isolation blocking hole (7) are filled with semiconductor; The side of each metal vibrator piece (3) away from the supporting balun board (1) is provided with a rectification structure (5) for rectification, the rectification structure (5) is rectangular, and the rectification structure (5) includes There are a plurality of rectification tanks arranged side by side, and rectification channels (51) are arranged between the rectification tanks; the rectification tanks are also filled with semiconductors. 2. A broadband dual-polarized vibrator according to claim 1, characterized in that: the first isolation blocking hole (6) is a parallel rectangle; the upper and lower sides of the first isolation blocking hole (6) The length of the side is 4mm-7mm. 3 . The broadband dual-polarization oscillator according to claim 1 , wherein the semiconductor is gallium arsenide semiconductor. 4 . 4. The broadband dual-polarization vibrator according to claim 1, characterized in that: the thickness of each metal vibrator piece (3) is 2mm-2.5mm. 5. The broadband dual-polarization vibrator according to claim 1, characterized in that: the number of the first isolation blocking holes (6) is eight. 6. The wide-band dual-polarization vibrator according to claim 1, characterized in that: the number of the second isolation blocking holes (7) is five. 7. A broadband dual-polarization vibrator according to claim 1, characterized in that the distance between the first coaxial cable feed (11a) hole and the second coaxial cable feed (12a) hole is greater than 4cm. 8. A broadband dual-polarized vibrator according to claim 1, characterized in that: the supporting balun board (1) is circular; the supporting balun board (1) is a PCB board with a diameter of It is 10cm. 9. A wide-band dual-polarization vibrator according to claim 1, characterized in that the width of the metal vibrator piece (3) is 6 cm.