WO2018126370A1

WO2018126370A1 - Micro-strip antenna element

Info

Publication number: WO2018126370A1
Application number: PCT/CN2017/070209
Authority: WO
Inventors: 李万
Original assignee: 李万
Priority date: 2017-01-05
Filing date: 2017-01-05
Publication date: 2018-07-12

Abstract

Disclosed is a micro-strip antenna element, comprising a square reflection board, wherein the reflection board is provided with four centrosymmetric radiation units; each of the radiation units comprises a T-shaped first primary radiating arm; two ends of a cross arm of the first primary radiating arm are provided with a rectangular first secondary radiating arm; each first secondary radiating arm is provided with a plurality of rectangular first strip holes arranged together; the first primary radiating arm also comprises, at the top, two circular ring-shaped transitional radiating arms arranged in the vertical direction; the two transitional radiating arms are connected by means of a first connecting arm; and the transitional radiating arm adjacent to the first primary radiating arm is connected to the first primary radiating arm by means of a second connecting arm. A gain in a frequency band of the micro-strip antenna element can reach 1.90 dBi, the average gain is 1.49 dBi, and the radiation efficiency can exceed 29%. The micro-strip antenna element completely conforms to a 2.4 GHz protocol often used for implementation in current communication.

Description

Microstrip antenna oscillator

The present invention relates to a microstrip antenna vibrator.

Background technique

[0002] An antenna is a device that converts a high-frequency current into a radio wave and emits it into a space, while collecting radio waves and generating a high-frequency current. The communication vibrator is the transmitting unit of the antenna. At present, the antenna for pursuing high gain is getting more and more attention, and it is among the antennas adopting the 2.4 GHz protocol.

technical problem

Problem solution

Technical solution

[0003] It is an object of the present invention to overcome the above-discussed shortcomings and to provide a microstrip antenna vibrator.

[0004] In order to achieve the above object, a specific embodiment of the present invention is as follows: A microstrip antenna vibrator includes a square reflecting plate, and the reflecting plate is provided with four radiating elements having a central symmetry; each radiating element The first radiating main arm of the first radiating main arm is provided with a rectangular first radiating jib; each of the first radiating jibs is arranged with a plurality of a first hole of the rectangular shape; the first radiation main arm further includes two circular transitional radiation arms disposed in a vertical direction, and the two transitional radiation arms are connected by the first connecting arm, and the first The transitional radiation arm adjacent to the radiation main arm is connected to the first radiation main arm through the second connecting arm; and the second transitional radiation arm is further provided with a second radiation main arm disposed in parallel with the transverse arm of the first radiation main arm; The second radiating main arm is connected to the adjacent transitional radiating arm through a third connecting arm; the two ends of the second radiating main arm extend vertically upward with a rectangular second radiating auxiliary arm, the second More on the radiating jib Arranging a second hole; each second radiating jib free end extends 45 degrees toward the center of the third radiating yoke; and the second radiating main arm further extends upwardly with two fourth radiating jibs Each of the fourth radiating jibs is provided with two L-shaped third holes that are symmetric in center; the inwardly-facing side of the fourth radiating jib is provided with a zigzag structure; and further includes a T-shaped parasitic The main vibrator arm has three dome-shaped parasitic sub-vibrator arms extending to the two sides of the longitudinal rod of the parasitic main vibrator arm. [0005] Preferably, the parasitic main oscillator arm has a rectangular parasitic rectangular arm extending downward from both sides of the cross arm.

[0006] Preferably, a central recess is provided on the second radiating main arm, the second radiating sub-arm and the fourth radiating sub-arm.

[0007] Preferably, the number of the first holes provided on each of the first radiating jibs is 22.

[0008] Preferably, the number of the second holes provided on each of the second radiation arms is 12.

Advantageous effects of the invention

Beneficial effect

[0009] The gain in the band is 1.90dBi and the average gain is 1.49.

dBi. Radiation efficiency can exceed 29%. It is fully compatible with the current 2.4GHz protocol. Brief description of the drawing

DRAWINGS

1 is a plan view of a vibrator of the present invention;

2 is a schematic structural view of a radiation unit of the present invention;

3 is a gain diagram of a vibrator of the present invention;

4 is a radiation efficiency diagram of a vibrator of the present invention;

5 is a standing wave ratio diagram of a vibrator of the present invention; [0014] FIG.

[0015] The reference numerals in FIGS. 1 to 5 illustrate:

[0016] vl-reflecting plate; v2-first radiating main arm; v3-first radiating jib; v31-first hole; v4-transition radiating arm; v51-first connecting arm; v52-second connecting arm V53-third connecting arm; v6-second radiating main arm; v6 1-rectangular recess; v7-second radiating jib; v71-second hole; v72-third radiating jib; v8-fourth radiation Auxiliary arm; v81-third hole; v9-parasitic main oscillator arm; v91-parasitic secondary oscillator arm; v92-parasitic rectangular arm

Embodiments of the invention

The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, which are not intended to limit the scope of the invention.

[0018] As shown in FIG. 1 to FIG. 5, a microstrip antenna oscillator according to this embodiment includes a square reflection. a plate v1, the reflector plate v1 is provided with four radiation units having a central symmetry; each radiation unit includes a T-shaped first radiation main arm v2, and the two ends of the cross arm of the first radiation main arm v2 Each of the first radiation sub-arms v3 is provided with a plurality of rectangular first holes v31 arranged in a row; the first radiation main arm v2 further includes two An annular transitional radiating arm v4 disposed in a vertical direction, and two transitional radiating arms v4 connected by a first connecting arm v51, a transitional radiating arm v4 adjacent to the first radiating main arm v2 and a first radiating main arm V2 is connected by a second connecting arm v52; a second radiating main arm v6 disposed parallel to the cross arm of the first radiating main arm v2 is further disposed above the two transitional radiating arms v4; the second radiating main arm v6 is opposite thereto The adjacent transitional radiating arms v4 are connected by a third connecting arm v53; the two ends of the second radiating main arm v6 extend vertically upward with a rectangular second radiating yoke v7, and the second radiating auxiliary arm V7 a plurality of second holes v71 arranged in a row are arranged; each second radiating yoke v7 is freely oriented in the middle 45 degrees extend out of the third radiating yoke v72; the second radiating main arm v6 also extends vertically upwards with two fourth radiating yokes v8, each of which has a central symmetry Two L-shaped third holes v81; the inward side of the fourth radiating yoke v8 is provided with a zigzag structure; further comprising a T-shaped parasitic main vibrator arm v9, the longitudinal of the parasitic main vibrator arm The rod extends three sides of the parasitic auxiliary vibrator arm v91. This antenna can be realized after more than 1000 times of microstrip adjustment and design. It has good antenna characteristics, as shown in Figure 3 and Figure 4, respectively, the gain and radiation efficiency in the test band. The gain in the band is 1.90 dBi and the average gain is 1.49 dBi. The radiation efficiency can exceed 29%. Fully in line with the current communication, the 2.4GHz protocol is often used. Figure 5 shows the voltage standing wave ratio. It can be seen that the voltage standing wave ratio in the frequency band is less than 2.5, and the optimum voltage can reach 2.3. Therefore, the return loss is excellent. . The communication performance can be effectively increased, and the utility of the present invention is increased.

[0019] Preferably, both sides of the cross arm of the parasitic main vibrator arm v9 extend downwardly from the rectangular parasitic rectangular arm v92. Preferably, a rectangular recess v61 is provided in a central region between the second radiating main arm v6, the second radiating sub-arm v7 and the fourth radiating sub-arm v8. Preferably, the number of the first holes v31 is 12 in each of the first radiating sub-arms v3. Preferably, the number of the second holes v71 provided on each of the second radiating sub-arms v7 is twelve. It can effectively increase the current law, increase the gain of the same, and reduce the standing wave ratio.

[0020] Specifically, the antenna is a non-size antenna, and the foregoing requirements are met in the manner of holes and holes provided in the bending direction; but if better stable performance is required, the specific size of the antenna can be optimized. The line width of the cross arm of the first radiation main arm v2 is 1.5 mm; the length is 8.5 mm; the first radiation main arm v2 The longitudinal arm has a line width of 3 mm; a height of 1.6 mm; the first radiating jib v3 is square and has a side length of 7.6 mm; the first hole v31 has a line width of 0.2 mm and a height of 5.1 mm; The distance between the holes is: 0.1 mm. The line width of the transitional radiant arm v4 is: 0.3 mm, and the inner diameter is 0.8 mm; the first connecting arm v51 is connected to the third connecting arm v 53 and the connecting line width is not more than 0.5 mm, and the height is not more than 0.5 mm; the second radiating main arm The line width of v6 is 5mm and the length is: 23mm; the width of the second radiating jib v7 is 2.7mm and the height is 6.8mm; the width of the second hole v71 is 0.4mm, the length is: 2.3mm; the third radiation pair The arm v72 has a line width of 0.7 mm and a side length of: 3.6 mm; the fourth radiating jib v8 does not include a sawtooth edge with a line width of 2.9 mm, the sawtooth side has a width of 0.1 mm; and the fourth radiating jib height of the fourth radiating jib is : 6.8mm. The length of the longitudinal side and the lateral side of the third hole v81 are the same, the line width is: 0.3 mm; the line widths of the cross arm and the trailing arm of the parasitic main vibrator arm v9 are: 1.5 mm, and the length of the cross arm is 6.8 mm. The height of the trailing arm is: 2.7mm; the line width of the parasitic secondary vibrator arm v91 is: 0.2mm, the length is: 1.8mm, and the short side is: 0.7mm. Others do not indicate that the vibrator arm or hole is not required.

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

Claims

Claim

A microstrip antenna vibrator, comprising: a square reflecting plate, wherein the reflecting plate is provided with four radiating elements with central symmetry; each radiating unit includes a first radiating main arm having a τ shape The first radiating main arm has a rectangular first radiating jib at both ends of the cross arm; each of the first radiating jibs is provided with a plurality of rectangular first holes arranged together; The radiation main arm further includes two circular transitional radiation arms arranged in a vertical direction, and the two transitional radiation arms are connected by a first connecting arm, and the transitional radiation arm adjacent to the first radiating main arm and the first a radiating main arm is connected by the second connecting arm; a second radiating main arm disposed parallel to the cross arm of the first radiating main arm is further disposed above the two transitional radiating arms; the second radiating main arm is adjacent thereto The transition radiating arms are connected by a third connecting arm; the two ends of the second radiating main arm vertically extend upwardly with a rectangular second radiating jib, and the second radiating jib is provided with a plurality of arranged Second hole; each The free end of the second radiating jib extends 45 degrees out of the center to the third radiating yoke; the second radiating main arm further extends upwardly and upwardly with two fourth radiating jibs, each of which is disposed on the fourth radiating jib a third L-shaped third hole having a central symmetry; a zigzag structure on the inward side of the fourth radiating jib; and a T-shaped parasitic main vibrator arm, the parasitic main vibrator arm The longitudinal rods extend to the sides with three serpentine parasitic vibrator arms.

A microstrip antenna oscillator according to claim 1, wherein: the parasitic main oscillator arm has a rectangular parasitic rectangular arm extending downward from both sides of the cross arm.

A microstrip antenna vibrator according to claim 1, wherein a central recess is provided on the second radiating main arm, the second radiating sub-arm and the fourth radiating sub-arm. A microstrip antenna oscillator according to claim 1, wherein the number of the first holes provided in each of the first radiating jibs is 22.

A microstrip antenna oscillator according to claim 1, wherein the number of the second holes provided in each of the second radiating jibs is twelve.