Patch antenna

Abstract

The invention relates to the technical field of radio antennas, in particular to a patch antenna which comprises an antenna body and a connection protector arranged on the antenna body, and the antenna body comprises a patch, a dielectric layer, a bottom plate and a connection base arranged on the bottom plate. The connection protector comprises a fixed shell, a locking sliding arm and an adjusting knob. According to the patch antenna provided by the invention, the connection protector is prefabricated at the position, corresponding to the socket of the coaxial cable, below the bottom plate, so that the connection between the plug and the socket of the back-fed coaxial cable can be effectively protected. The patch antenna provided by the invention is simple to operate, and the connection and fixation of the plug can be easily realized only through two actions of one-time plugging and one-time rotation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radio antenna, in particular to a patch antenna. BACKGROUND

[0002] Patch antenna is a kind of antenna with low profile, light weight, easy to manufacture and low cost, which is widely used in wireless communication, GPS, radar, RFID and mobile devices. Its core structure is very simple, mainly composed of three basic parts, and some additional elements can be added to optimize performance. The most classic structure of patch antenna includes radiation patch, dielectric substrate, ground plate and feed structure. For example, the inner conductor and outer conductor of the coaxial cable connector are connected to the radiation patch and the ground plate respectively. However, due to the limited size of the socket and plug structure of the coaxial cable, and the lack of structural fixation, it is often misoperated to pull the cable, which may cause cable breakage or socket falling off. Therefore, a patch antenna with stable structure needs to be designed. SUMMARY

[0003] A patch antenna, comprising an antenna main body and a connection protector arranged on the antenna main body, the antenna main body comprising a patch, a dielectric layer, a bottom plate, further comprising a connection base arranged on the bottom plate, the connection base being an IPEX connection base or an SMA connection base; the connection base is used to set a connection plug.

[0004] The connection protector comprises: A fixed shell, comprising a cylindrical base, a containing circular cavity arranged on the upper end face of the cylindrical base, an annular partition plate formed in the middle of the inner wall of the containing circular cavity, and four constraint blocks uniformly distributed on the lower end of the containing circular cavity, the constraint blocks are provided with four, and a radial slide is formed between adjacent constraint blocks, a bottom through hole is arranged at the bottom of the containing circular cavity, and a mounting side hole is arranged at the corresponding position of the annular partition plate on the upper half of the side surface of the cylindrical base; a connection ring seat for connecting the bottom plate is further arranged on the outer wall of the cylindrical base.

[0005] A locking slide arm, provided with four, one locking slide arm is arranged in each radial slide; the locking slide arm comprises a slide arm body, a pressing chamber and a pressing assembly; The slide arm body comprises a slide arm slider, a threaded plug formed on the lower end face of the slide arm slider and screwed with a flat threaded disc, and an abutting cone head arranged on the inner side of the slide arm slider; the abutting cone head is a right-angle cone head; The pressing chamber comprises a side circular hole arranged on the side of the abutting cone head, a longitudinal stop screw rod formed on the inner wall of the side circular hole, and a pressing wide hole arranged at the stop end of the side circular hole, the pressing wide hole penetrates through the lower end face of the abutting cone head; The lower pressing assembly comprises a slidable extrusion round rod arranged in the side round hole, a longitudinal through hole arranged in the extrusion round rod for accommodating the longitudinal stop rod, a driving insert block formed on the outer wall of the extrusion round rod, a slidable hole cam arranged in the lower pressing wide hole, a helical groove arranged on the inner wall of the round hole of the hole cam and matched with the driving insert block, a reset spring arranged in the hole cam and abutting against the extrusion round rod, and a bevel cut gap arranged on the outer side of the extrusion round rod.

[0006] The adjusting knob comprises a slidable plane threaded disc arranged below the accommodating round cavity, a torsion terminal arranged below the plane threaded disc and passing through the bottom through hole, and the plane threaded disc is in transmission connection with the locking slide arm.

[0007] The beneficial effects of the application are as follows: The patch antenna can effectively protect the connection of the plug and the socket of the coaxial cable by arranging the prefabricated connection protector below the bottom plate corresponding to the coaxial cable socket.

[0008] The patch antenna is simple to operate, and only two actions of "inserting" and "turning" are needed to easily realize the connection and fixation of the plug. Firstly, "inserting", namely, the mounting side hole on the fixed shell is convenient for inserting the plug into the socket thereof; Then, "turning", namely, rotating the adjusting knob can drive the locking slide arm to move inwardly and then extrude downwardly in sequence.

[0009] The patch antenna has a compact and reasonable structure, and especially, the locking slide arm is in the outer side position in the radial direction in the normal state, so that the central position of the accommodating round cavity is effectively avoided, and sufficient longitudinal space is given to the plug after the plug is inserted into the accommodating round cavity to align the lower end surface of the socket. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0011] Figure 1 is a schematic view of an embodiment of the patch antenna.

[0012] Figure 2 is a side view of an embodiment of the patch antenna.

[0013] Figure 3is a side view of one embodiment of the patch antenna and the connecting plug.

[0014] Figure 4 is a schematic view of one embodiment of the connecting protector.

[0015] Figure 5 is an isometric sectional view of one embodiment of the fixed housing.

[0016] Figure 6 is a sectional view of one embodiment of the fixed housing.

[0017] Figure 7 is an isometric sectional view of one embodiment of the adjusting knob.

[0018] Figure 8 is an isometric sectional view of one embodiment of the fixed housing and the adjusting knob.

[0019] Figure 9 is a schematic view of one embodiment of the locking slide arm.

[0020] Figure 10 is an isometric partial sectional view of one embodiment of the locking slide arm.

[0021] Figure 11 is an isometric partial sectional view of one embodiment of the locking slide arm.

[0022] Figure 12 is a sectional view of one embodiment of the locking slide arm.

[0023] Figure 13 is a sectional view of one embodiment of the locking slide arm.

[0024] Figure 14 is an isometric sectional view of one embodiment of the connecting protector.

[0025] Figure 15 is an isometric sectional view of one embodiment of the connecting protector.

[0026] Reference signs in the drawings are as follows: 9. Antenna body, 91. Patch, 92. Dielectric layer, 93. Base plate, 94. Connecting base; 8. Connecting protector; 7. Connecting plug; 1. Fixed housing, 11. Cylindrical base, 12. Containing circular cavity, 13. Annular partition, 14. Restraining stopper, 15. Radial slide, 16. Bottom through hole, 17. Mounting side hole, 18. Connecting ring seat; 2. Locking slide arm; 21. Slide arm body, 211. Slide arm slider, 212. Screwed plug, 213. Abutting cone head; 22. Lower pressing chamber, 221. Side round hole, 222. Longitudinal anti-rotation rod, 223. Lower pressing wide hole; 23. Lower pressing assembly, 231. Extrusion round rod, 232. Longitudinal through hole, 233. Active plug, 234. Hole cam, 235. Spiral groove, 236. Reset compression spring, 237. Bevel cutout; 24. Adjusting assembly, 241. Through round hole, 242. Limiting convex ring, 243. Anti-rotation side hole, 244. Internal threaded cylinder, 245. Anti-rotation plug key, 246. Cross screw, 247. Limiting ring groove; 3. Adjusting knob, 31. Flat threaded disc, 32. Torsion terminal. DETAILED DESCRIPTION

[0027] A patch antenna, comprising an antenna main body 9 and a connection protector 8 arranged on the antenna main body 9, the antenna main body 9 comprising a patch 91, a dielectric layer 92, a bottom plate 93, and further comprising a connection base 94 arranged on the bottom plate 93, the connection base 94 being an IPEX connection base or an SMA connection base; the connection base 94 is used to arrange a connection plug 7.

[0028] The connection protector 8 comprises: A fixed shell 1, comprising a cylindrical base 11, a containing circular cavity 12 arranged on the upper end face of the cylindrical base 11, an annular partition plate 13 formed in the middle of the inner wall of the containing circular cavity 12, and constraint stoppers 14 circumferentially and uniformly arranged at the lower end of the containing circular cavity 12, the constraint stoppers 14 are arranged in four, and a radial slide 15 is formed between adjacent constraint stoppers 14, a bottom through hole 16 is arranged at the bottom of the containing circular cavity 12, and a mounting side hole 17 is further arranged at the corresponding position of the annular partition plate 13 on the upper half of the side face of the cylindrical base 11; a connection ring seat 18 for connecting the bottom plate 93 is further arranged on the outer wall of the cylindrical base 11.

[0029] A locking sliding arm 2, arranged in four, one locking sliding arm 2 is arranged in each radial slide 15; the locking sliding arm 2 comprises a sliding arm body 21, a lower pressing chamber 22, and a lower pressing assembly 23; The sliding arm body 21 comprises a sliding arm sliding block 211, a threaded plug 212 formed on the lower end face of the sliding arm sliding block 211 and screwed with the flat threaded disc 31, and an abutting taper head 213 arranged on the inner side of the sliding arm sliding block 211; the abutting taper head 213 is a right-angle taper head; The lower pressing chamber 22 comprises a side round hole 221 arranged on the side face of the abutting taper head 213, a longitudinal anti-rotation rod 222 formed on the inner wall of the side round hole 221, and a lower pressing wide hole 223 arranged at the stop end of the side round hole 221, the lower pressing wide hole 223 penetrates through the lower end face of the abutting taper head 213 below; The lower pressing assembly 23 comprises a slidable extrusion round rod 231 arranged in the side round hole 221, a longitudinal through hole 232 arranged in the extrusion round rod 231 for accommodating the longitudinal stop rotating rod 222, a driving insert block 233 formed on the outer wall of the extrusion round rod 231, a slidable hole cam 234 arranged in the lower pressing wide hole 223, the inner wall of the round hole of the hole cam 234 is provided with a spiral groove 235 matched with the driving insert block 233, and the hole cam 234 is further provided with a reset compression spring 236 abutting against the extrusion round rod 231, and the outer side of the extrusion round rod 231 is further provided with a bevel cutout 237.

[0030] The adjusting knob 3 comprises a slidable plane threaded disc 31 arranged below the accommodating round cavity 12, a torsion terminal 32 arranged below the plane threaded disc 31 and passing through the bottom through hole 16, and the plane threaded disc 31 is in transmission connection with the locking sliding arm 2; and the outer wall of the torsion terminal 32 is uniformly provided with anti-skid longitudinal lines in the lower half part.

[0031] It should be noted that the locking sliding arm 2 further comprises an adjusting assembly 24, the adjusting assembly 24 comprises a through round hole 241 arranged at the side opposite to the lower pressing wide hole 223 and the side round hole 221, a limiting convex ring 242 arranged at the distal end of the inner wall of the through round hole 241, a stop rotating side hole 243 arranged at the proximal end of the inner wall of the through round hole 241, a slidable internal threaded cylinder 244 arranged in the through round hole 241, a stop rotating insert key 245 arranged on the outer wall of the internal threaded cylinder 244 and in plug-in cooperation with the stop rotating side hole 243, a cross screw rod 246 screwed in the internal threaded cylinder 244, and a limiting ring groove 247 arranged on the terminal outer wall of the cross screw rod 246 and matched with the limiting convex ring 242.

[0032] As a further technical solution, the outer wall of the fixed shell 1 is further uniformly provided with an operation side hole in communication with the accommodating round cavity 12 at a position corresponding to the height of the locking sliding arm 2, and the cross screw rod 246 can be operated through the operation side hole using a cross screwdriver.

[0033] The patch antenna described in the case protects the plug-in connection base 94 and the connection protector 8 by arranging the connection protector 8, and the specific method is as follows: S1, initially arranging the connection plug 7: Through the installation side hole 17, the connection plug 7 is inserted into the accommodating round cavity 12 of the fixed shell 1, and is further aligned with the connection base 94, and the connection plug 7 is lightly pressed to be initially placed on the connection base 94; S2, clamping the connection plug 7: The torsion terminal 32 and the plane threaded disc 31 are rotated; The plane threaded disc 31 acts on the screwed plug 212 to drive the four locking sliding arms 2 to move inward synchronously; The abutting conical heads 213 of the locking slide arms 2 gradually abut, so that the exposed part of the extruded round rod 231 of each locking slide arm 2 is pressed inward by the abutting conical heads 213 of the adjacent locking slide arms 2; The inwardly retracted extruded round rod 231 and the active plug 233 move inward against the damping of the return spring 236; The active plug 233 acts on the spiral groove 235, thereby driving the hole cam 234 to rotate, and the longer end of the hole cam 234 away from the rotation center rotates downward, thereby extruding the connecting plug 7 downward to firmly fix it on the connecting base 94.

[0034] As a further embodiment, in order to facilitate the operation of the connecting plug 7 in step S1, a toothpick or other slender hard object can be temporarily bound on the soft connecting line of the connecting plug 94, and by holding the hard object, the connecting plug 7 can be inserted, slightly pressed, and other operations outside the fixed shell 1.

Claims

1. A patch antenna, comprising an antenna main body (9) and a connection protector (8) arranged on the antenna main body (9), the antenna main body (9) comprising a patch (91), a dielectric layer (92), and a bottom plate (93), further comprising a connection base (94) arranged on the bottom plate (93), characterized in that: The connection protector (8) comprises: A fixed shell (1) comprising a cylindrical base (11), a containing circular cavity (12) arranged on the upper end surface of the cylindrical base (11), an annular partition plate (13) formed in the middle of the inner wall of the containing circular cavity (12), and constraint stop blocks (14) circumferentially and uniformly arranged on the lower end of the containing circular cavity (12), wherein four constraint stop blocks (14) are arranged, and a radial slide (15) is formed between adjacent constraint stop blocks (14), a bottom through hole (16) is arranged on the bottom of the containing circular cavity (12), and a mounting side hole (17) is further arranged on the upper half of the side surface of the cylindrical base (11) corresponding to the annular partition plate (13); Locking slide arms (2) are arranged, one in each radial slide (15); An adjusting knob (3) is arranged, comprising a planar threaded disc (31) slidably arranged below the containing circular cavity (12), and a torsion terminal (32) arranged below the planar threaded disc (31) and penetrating through the bottom through hole (16), wherein the planar threaded disc (31) is in transmission connection with the locking slide arms (2).

2. The patch antenna according to claim 1, wherein: The locking slide arm (2) comprises a slide arm body (21), a pressing cavity (22), and a pressing assembly (23); The slide arm body (21) comprises a slide arm sliding block (211), a threaded plug (212) formed on the lower end surface of the slide arm sliding block (211) and in threaded connection with the planar threaded disc (31), and an abutting taper head (213) arranged on the inner side of the slide arm sliding block (211); The pressing cavity (22) comprises a side-arranged circular hole (221) arranged on the side surface of the abutting taper head (213), a longitudinal stop rotating rod (222) formed on the inner wall of the side-arranged circular hole (221), and a pressing wide hole (223) arranged at the stop end of the side-arranged circular hole (221), wherein the pressing wide hole (223) penetrates through the lower end surface of the abutting taper head (213); The pressing assembly (23) comprises an extrusion circular rod (231) slidably arranged in the side-arranged circular hole (221), a longitudinal through hole (232) arranged in the extrusion circular rod (231) for containing the longitudinal stop rotating rod (222), a driving insertion block (233) formed on the outer wall of the extrusion circular rod (231), a hole-carrying cam (234) slidably arranged in the pressing wide hole (223), wherein the circular hole inner wall of the hole-carrying cam (234) is provided with a spiral groove (235) matched with the driving insertion block (233), and the hole-carrying cam (234) is further provided with a reset compression spring (236) in abutment with the extrusion circular rod (231).

3. The patch antenna according to claim 2, wherein: The connection base (94) is an IPEX connection base or an SMA connection base.

4. The patch antenna according to claim 3, wherein: The upper outer wall of the cylindrical base (11) is further provided with a connection ring seat (18) for connecting a bottom plate (93).

5. The patch antenna according to claim 4, wherein: The lower half of the outer wall of the torsion terminal (32) is circumferentially and uniformly provided with anti-skid longitudinal lines.

6. The patch antenna according to claim 5, wherein: The connecting base (94) is used to set the connecting plug (7).

7. The patch antenna according to claim 6, wherein: The abutting cone head (213) is a right-angle cone head.

8. The patch antenna according to claim 7, wherein: The extruded round rod (231) is further provided with a bevel cut gap (237) on the outside.

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