Millimeter wave antenna capable of being rapidly assembled

Abstract

The utility model provides a millimeter wave antenna capable of being quickly assembled, which is used for solving the technical problem that the assembly efficiency and the use performance of the millimeter wave antenna are influenced by high welding difficulty and poor welding quality caused by small size during production and assembly of the existing millimeter wave antenna. Comprising a ceramic lens, a metal base, and an antenna coupling assembly and a feed assembly which are arranged between the ceramic lens and the metal base, a limiting flange is arranged at the bottom end of the ceramic lens, a first external thread section is arranged in the middle of the outer end face of the metal base, the antenna coupling assembly and the feed assembly are sleeved with a locking sleeve, a limiting ring table is arranged at the top end of the inner side of the locking sleeve, and a first internal thread section is arranged on the inner side wall of the locking sleeve. The limiting ring table abuts against the limiting flange, and the first internal thread section is in threaded connection with the first external thread section. According to the invention, rapid assembly of the millimeter wave antenna is realized, the whole antenna has no welding part, and the assembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of millimeter wave antennas, in particular to a millimeter wave antenna that can be assembled quickly. Background Art

[0002] During the mass production and assembly of existing millimeter-wave antennas, metal components are connected by welding. However, due to the small size of millimeter-wave antennas, soldering often results in tin accumulation, which affects standing waves. Furthermore, the small size of these antennas places a high demand on welding skills, significantly impacting the progress of mass production and assembly. Utility Model Content

[0003] The purpose of this utility model is to provide a millimeter wave antenna that can be assembled quickly, so as to solve the technical problem that the existing millimeter wave antenna production and assembly process is difficult and poor in welding quality due to its small size, which in turn affects the assembly efficiency and performance of the millimeter wave antenna.

[0004] A millimeter wave antenna that can be quickly assembled includes a ceramic lens and a metal base, and an antenna coupling component and a feeding component arranged between the ceramic lens and the metal base;

[0005] A limiting flange is provided at the bottom end of the ceramic lens, a first external thread section is provided at the middle portion of the outer end surface of the metal base, a locking sleeve is provided on the outer side of the antenna coupling assembly and the feeding assembly, a limiting ring is provided at the inner top end of the locking sleeve, and a first internal thread section is provided on the inner side wall of the locking sleeve. When the locking sleeve is installed, the limiting ring contacts the limiting flange, and the first internal thread section is threadedly connected to the first external thread section.

[0006] Optionally, the antenna coupling component includes an antenna coupling substrate;

[0007] An antenna patch is provided on the antenna coupling substrate, and the ceramic lens is located above the antenna patch.

[0008] Optionally, the feeding assembly includes a ceramic fixing seat;

[0009] A first clamping groove is formed at the upper end of the ceramic fixing seat, the antenna coupling substrate is clamped in the first clamping groove, and the bottom end surface of the limiting flange contacts the top end surface of the ceramic fixing seat.

[0010] Optionally, a clamping boss is provided on the bottom end surface of the ceramic fixing seat;

[0011] The top end of the metal base is provided with a second clamping groove adapted to the clamping boss. When the ceramic fixing seat is installed, the clamping boss is placed in the second clamping groove.

[0012] Optionally, the feed assembly further includes a feed substrate arranged in a vertical direction, a strip-shaped mounting groove is provided on the bottom end surface of the second clamping groove, and the bottom end of the feed substrate is arranged in the strip-shaped mounting groove;

[0013] Feed patches are installed on both side end surfaces of the feed substrate. The ceramic fixing seat is provided with a vertical through groove that passes through the bottom end surface of the clamping boss and the first clamping groove. The upper end of the feed substrate is located in the vertical through groove.

[0014] Optionally, a power feeding contact plate is provided on the bottom end surface of the ceramic lens, and a first power feeding needle is installed at the bottom end of the power feeding contact plate;

[0015] The feed contact pad is electrically connected to the antenna patch, a feed via is provided on the antenna coupling substrate, and the other end of the first feed needle passes through the antenna patch and the feed via and is electrically connected to the top of the feed patch.

[0016] Optionally, a stepped hole is provided on the bottom end surface of the metal base, passing through the bottom end surface and the second clamping groove, and a grounding seat is provided in the stepped hole;

[0017] A second internal thread segment is provided on the inner side wall of the stepped hole, and a second external thread segment is provided on the outer wall of the grounding seat. When the grounding seat is installed, the second internal thread segment is threadedly connected with the second external thread segment.

[0018] Optionally, a mounting groove is provided on the bottom end surface of the grounding base, and a second feeding pin arranged in a vertical direction is installed on the grounding base;

[0019] The upper end of the second feeding needle extends out of the upper end surface of the grounding seat, the lower end of the second feeding needle is located in the mounting groove, and the top end of the second feeding needle is electrically connected to the bottom end of the feeding patch.

[0020] Optionally, the ceramic fixing seat is provided with a first sliding hole penetrating through its outer wall and the vertical through groove, and the metal base is provided with a second sliding hole penetrating through the upper portion of its outer wall and the inner wall of the step hole;

[0021] Ceramic top tips are provided in the first sliding hole and the second sliding hole. When the first internal thread section is threadedly connected with the first external thread section, one end of the outer side of the ceramic top tip contacts the inner end surface of the locking sleeve, and one end of the inner side of the ceramic top tip contacts the bottom end of the first feeding needle or the top end of the second feeding needle.

[0022] Optionally, a third external thread section for mounting and fixing the antenna is provided at the lower portion of the outer end surface of the metal base.

[0023] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0024] The present application realizes the rapid assembly of the millimeter wave antenna by setting a number of threaded segments, snap-in grooves and ceramic top tips, realizes the electrical connection of the antenna components through adaptive contact, abandons the welding connection method, and the entire antenna has no welded parts, which reduces the difficulty of its assembly, reduces the additional impact of the assembly process on the antenna parameters, and improves the stability of the millimeter wave antenna after assembly.

[0025] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings of the present invention are described as follows.

[0027] Figure 1 This is a cross-sectional view of the millimeter wave antenna of the present invention.

[0028] Figure 2 This is a schematic diagram of the overall structure of the millimeter wave antenna of the present utility model.

[0029] Figure 3 This is a structural diagram of the ceramic lens of the present invention.

[0030] Figure 4 This is a schematic structural diagram of the metal base of the utility model.

[0031] Figure 5 This is a schematic structural diagram of the metal base, feed substrate and feed patch of the utility model.

[0032] Figure 6 This is a schematic structural diagram of the locking sleeve of the utility model.

[0033] Figure 7 This is a structural diagram of the antenna coupling substrate and antenna patch of the utility model.

[0034] Figure 8 This is a schematic diagram of the rear structure of the ceramic fixing seat of the present invention.

[0035] Figure 9 This is a schematic diagram of the front structure of the ceramic fixing seat of the present invention.

[0036] Figure 10 This is a structural diagram of the grounding socket and the second feeding pin of the utility model.

[0037] In the figure: 1-ceramic lens; 101-limiting flange; 2-metal base; 201-first external thread segment; 202-second retaining groove; 203-strip mounting groove; 204-step hole; 205-second internal thread segment; 206-second sliding hole; 207 third external thread segment; 3-locking sleeve; 301-limiting ring; 302-first internal thread segment; 4-antenna coupling substrate; 401-feeding via; 5-antenna patch; 6-ceramic fixing base; 601-first retaining groove; 602-receiving boss; 603-vertical through groove; 604-first sliding hole; 7-feeding substrate; 8-feeding patch; 9-feeding contact plate; 10-first feeding pin; 11-grounding base; 1101-second external thread segment; 1102-mounting groove; 12-second feeding pin; 13-ceramic top tip. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Example:

[0040] like Figure 1 and Figure 2 A millimeter wave antenna that can be quickly assembled is shown, comprising a ceramic lens 1 and a metal base 2, as well as an antenna coupling component and a feeding component arranged between the ceramic lens 1 and the metal base 2;

[0041] A limiting flange 101 is provided at the bottom end of the ceramic lens 1, a first external thread section 201 is provided at the middle of the outer end surface of the metal base 2, a locking sleeve 3 is provided on the outside of the antenna coupling component and the feeding component, a limiting ring 301 is provided at the inner top end of the locking sleeve 3, and a first internal thread section 302 is provided on the inner side wall of the locking sleeve 3. When the locking sleeve 3 is installed, the limiting ring 301 conflicts with the limiting flange 101, and the first internal thread section 302 is threadedly connected to the first external thread section 201.

[0042] In this embodiment, the ceramic lens 1 includes a ceramic lens body, which is a smooth semicircular ceramic lens, which can improve the gain of the entire antenna and increase the radiation angle.

[0043] like Figure 1 、 Figure 2 and Figure 7 As shown, the antenna coupling assembly includes an antenna coupling substrate 4;

[0044] An antenna patch 5 is provided on the antenna coupling substrate 4 , and the ceramic lens 1 is located above the antenna patch 5 .

[0045] In this embodiment, there are two antenna patches 5, which are used to receive or transmit electromagnetic wave signals. In this embodiment, the antenna coupling substrate 4 is a circular substrate with limit ears on its outer wall to prevent the antenna coupling substrate 4 from rotating within the first retaining groove 601.

[0046] like Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, the feeding assembly includes a ceramic fixing seat 6;

[0047] The upper end of the ceramic fixing seat 6 is provided with a first clamping groove 601 , the antenna coupling substrate 4 is clamped in the first clamping groove 601 , and the bottom end surface of the limiting flange 101 contacts the top end surface of the ceramic fixing seat 6 .

[0048] In this embodiment, a limiting notch is formed on the side wall of the first locking groove 601 to engage with the limiting ear of the antenna coupling substrate 4 .

[0049] like Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, a clamping boss 602 is provided on the bottom end surface of the ceramic fixing seat 6;

[0050] The top of the metal base 2 is provided with a second clamping groove 202 adapted to the clamping boss 602 . When the ceramic fixing seat 6 is installed, the clamping boss 602 is placed in the second clamping groove 202 .

[0051] In this embodiment, two limiting ears arranged at an angle of 180 are also provided on the outer side wall of the locking boss 602 , and a limiting notch is provided on the side wall of the second locking groove 202 to engage with the limiting ears of the locking boss 602 .

[0052] like Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the feeding assembly further includes a feeding substrate 7 arranged in the vertical direction, a strip-shaped mounting groove 203 is provided on the bottom end surface of the second clamping groove 202, and the bottom end of the feeding substrate 7 is arranged in the strip-shaped mounting groove 203;

[0053] Feed patches 8 are installed on both side end surfaces of the feed substrate 7. The ceramic fixing base 6 is provided with a vertical through groove 603 that passes through the bottom end surface of the clamping boss 602 and the first clamping groove 601. The upper end of the feed substrate 7 is located in the vertical through groove 603.

[0054] In this embodiment, the feeding component is used to adjust the impedance parameters of the antenna and guide the signal on the second feeding needle 12 to the antenna coupling surface.

[0055] like Figure 1 、 Figure 2 and Figure 3 As shown, a feeding contact plate 9 is provided on the bottom end surface of the ceramic lens 1, and a first feeding needle 10 is installed at the bottom end of the feeding contact plate 9;

[0056] The feed contact pad 9 is in electrical contact with the antenna patch 5 , a feed via 401 is provided on the antenna coupling substrate 4 , and the other end of the first feed needle 10 passes through the antenna patch 5 and the feed via 401 and is electrically connected to the top of the feed patch 8 .

[0057] In this embodiment, the electrical connection between the antenna coupling component and the feeding component is achieved through the feeding contact pad 9 and the first feeding needle 10. The feeding contact pad 9 and the first feeding needle 10 are fixed to the ceramic lens body when the ceramic lens 1 is produced.

[0058] like Figure 1 、 Figure 2 、 Figure 4 and Figure 10 As shown, a stepped hole 204 is provided on the bottom end surface of the metal base 2, which passes through the bottom end surface and the second clamping groove 202, and a grounding seat 11 is provided in the stepped hole 204;

[0059] A second internal thread segment 205 is provided on the inner side wall of the stepped hole 204 , and a second external thread segment 1101 is provided on the outer wall of the grounding seat 11 . When the grounding seat 11 is installed, the second internal thread segment 205 is threadedly connected to the second external thread segment 1101 .

[0060] In this embodiment, the grounding seat 11 is connected to the metal base 2 via threads, thereby achieving good grounding of the antenna.

[0061] like Figure 1 、 Figure 2 and Figure 10 As shown, a mounting groove 1102 is provided on the bottom surface of the grounding base 11, and a second feeding pin 12 arranged in a vertical direction is installed on the grounding base 11;

[0062] The upper end of the second feeding needle 12 extends out of the upper end surface of the grounding seat 11 , the lower end of the second feeding needle 12 is located in the mounting groove 1102 , and the top end of the second feeding needle 12 is electrically connected to the bottom end of the feeding patch 8 .

[0063] In this embodiment, the top of the second feeding needle 12 is a semicircular flat opening, and the flat portion thereof contacts the feeding patches 8 on both sides of the feeding substrate 7 respectively.

[0064] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 and Figure 8 As shown, the ceramic fixing seat 6 is provided with a first sliding hole 604 penetrating its outer wall and the vertical through groove 603, and the metal base 2 is provided with a second sliding hole 206 penetrating its outer wall upper portion and the inner wall of the step hole 204;

[0065] A ceramic tip 13 is provided in each of the first sliding hole 604 and the second sliding hole 206. When the first internal thread section 302 is threadedly connected to the first external thread section 201, one end of the outer side of the ceramic tip 13 contacts the inner end surface of the locking sleeve 3, and one end of the inner side of the ceramic tip 13 contacts the bottom end of the first feeding needle 10 or the top end of the second feeding needle 12.

[0066] In this embodiment, the first internally threaded segment 302 has a gradually decreasing thread groove depth from the thread end to the top of the locking sleeve 3, until the thread groove depth is reduced to zero and flush with the inner end surface of the locking sleeve 3 (the first externally threaded segment 201 is only threadedly connected to the deeper lower portion of the first internally threaded segment 302). During the tightening process between the first externally threaded segment 201 and the first internally threaded segment 302, the locking sleeve 3 pushes the ceramic pin 13 out. In this embodiment, the ceramic pin 13 is a thin rod made of zirconia ceramic, with a semicircular shape at its end and a flat tail. Due to the inherent lubrication properties of the ceramic, no significant radial force is generated when the locking sleeve 3 is tightened.

[0067] In this embodiment, there are two sets of first sliding holes 604, and the two sets of first sliding holes 604 are arranged 180 degrees rotated. The first feed pins 10 and the second feed pins 12 are both round rod-shaped. The ceramic tips 13 in the first sliding holes 604 allow the two first feed pins 10 to fit tightly against the top of the feed patch 8 on either side, and the ceramic tips 13 in the second sliding holes 206 allow the second feed pins 12 to fit tightly against the bottom of the feed patch 8.

[0068] like Figure 1 、 Figure 2 and Figure 5 As shown, a third external thread section 207 for mounting and fixing the antenna is provided at the lower portion of the outer end surface of the metal base 2 .

[0069] In this embodiment, the millimeter wave antenna is installed and fixed by the third external thread section 207 cooperating with the thread.

[0070] The specific steps for assembling the millimeter wave antenna in this application are:

[0071] S1: Place the two antenna patches 5 on the antenna coupling substrate 4, and place the feed patch 8 on the feed substrate 7. Insert the ceramic tip 13 into the first sliding hole 604 and the second sliding hole 206, and connect the grounding base 11 to the metal base 2.

[0072] S2: Place the antenna coupling substrate 4 into the first clamping groove 601, and place the bottom end of the feeding substrate 7 into the strip-shaped mounting groove 203;

[0073] S3: The ceramic holder 6 is clamped into the second clamping groove 202 on the metal base 2, and the ceramic lens 1 is placed on the ceramic holder 6;

[0074] S4: The locking sleeve 3 is sleeved on the outside of the ceramic fixing seat 6, and the locking sleeve 3 is screwed to threadably connect the first external thread section 201 and the first internal thread section 302.

[0075] In summary, the present application realizes the rapid assembly of the millimeter wave antenna by setting a number of threaded segments, snap-on grooves and ceramic top tips, realizes the electrical connection of the antenna components through adaptive contact, abandons the welding connection method, and the entire antenna has no welded parts, which reduces the difficulty of its assembly, reduces the additional impact of the assembly process on the antenna parameters, and improves the stability of the millimeter wave antenna after assembly.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A millimeter wave antenna that can be quickly assembled, characterized in that: It comprises a ceramic lens (1) and a metal base (2), and an antenna coupling component and a feeding component arranged between the ceramic lens (1) and the metal base (2); A limiting flange (101) is provided at the bottom end of the ceramic lens (1), a first external thread section (201) is provided at the middle of the outer end surface of the metal base (2), a locking sleeve (3) is provided on the outer side of the antenna coupling component and the feeding component, a limiting ring platform (301) is provided at the inner top end of the locking sleeve (3), and a first internal thread section (302) is provided on the inner side wall of the locking sleeve (3); when the locking sleeve (3) is installed, the limiting ring platform (301) contacts the limiting flange (101), and the first internal thread section (302) is threadedly connected to the first external thread section (201).

2. The millimeter wave antenna capable of rapid assembly according to claim 1, characterized in that: The antenna coupling assembly includes an antenna coupling substrate (4); An antenna patch (5) is provided on the antenna coupling substrate (4), and the ceramic lens (1) is located above the antenna patch (5).

3. The millimeter wave antenna capable of rapid assembly according to claim 2, characterized in that: The feed assembly includes a ceramic fixing seat (6); A first clamping groove (601) is provided at the upper end of the ceramic fixing seat (6), the antenna coupling substrate (4) is clamped in the first clamping groove (601), and the bottom end surface of the limiting flange (101) contacts the top end surface of the ceramic fixing seat (6).

4. The millimeter wave antenna capable of rapid assembly according to claim 3, wherein: A clamping boss (602) is provided on the bottom end surface of the ceramic fixing seat (6); The top end of the metal base (2) is provided with a second locking groove (202) adapted to the locking boss (602); when the ceramic fixing seat (6) is installed, the locking boss (602) is placed in the second locking groove (202).

5. The millimeter wave antenna capable of rapid assembly according to claim 4, characterized in that: The feed assembly further comprises a feed substrate (7) arranged in a vertical direction, a strip-shaped mounting groove (203) being provided on the bottom end surface of the second clamping groove (202), and the bottom end of the feed substrate (7) being arranged in the strip-shaped mounting groove (203); Feed patches (8) are mounted on both side end surfaces of the feed substrate (7); a vertical through-slot (603) penetrating the bottom end surface of the clamping boss (602) and the first clamping groove (601) is provided on the ceramic fixing seat (6); the upper end of the feed substrate (7) is located in the vertical through-slot (603).

6. The millimeter wave antenna capable of rapid assembly according to claim 5, characterized in that: A power feeding contact plate (9) is provided on the bottom end surface of the ceramic lens (1), and a first power feeding needle (10) is installed at the bottom end of the power feeding contact plate (9); The feed contact plate (9) is in contact and electrically connected with the antenna patch (5); a feed via (401) is provided on the antenna coupling substrate (4); and the other end of the first feed needle (10) passes through the antenna patch (5) and the feed via (401) to be electrically connected to the top of the feed patch (8).

7. The millimeter wave antenna capable of rapid assembly according to claim 6, characterized in that: A stepped hole (204) is provided on the bottom end surface of the metal base (2) and passes through the bottom end surface and the second clamping groove (202), and a grounding seat (11) is provided in the stepped hole (204); A second internal thread section (205) is provided on the inner side wall of the stepped hole (204), and a second external thread section (1101) is provided on the outer wall of the grounding seat (11). When the grounding seat (11) is installed, the second internal thread section (205) is threadedly connected to the second external thread section (1101).

8. The millimeter wave antenna capable of rapid assembly according to claim 7, characterized in that: A mounting groove (1102) is provided on the bottom end surface of the grounding seat (11), and a second feeding pin (12) arranged in a vertical direction is mounted on the grounding seat (11); The upper end of the second feeding needle (12) extends out of the upper end surface of the grounding seat (11), the lower end of the second feeding needle (12) is located in the mounting groove (1102), and the top end of the second feeding needle (12) is electrically connected to the bottom end of the feeding patch (8).

9. The millimeter wave antenna capable of rapid assembly according to claim 8, characterized in that: The ceramic fixing seat (6) is provided with a first sliding hole (604) penetrating its outer wall and the vertical through groove (603), and the metal base (2) is provided with a second sliding hole (206) penetrating the upper portion of its outer wall and the inner wall of the step hole (204); A ceramic tip (13) is provided in each of the first sliding hole (604) and the second sliding hole (206); when the first internal thread section (302) is threadedly connected to the first external thread section (201), one end of the outer side of the ceramic tip (13) contacts the inner end surface of the locking sleeve (3), and one end of the inner side of the ceramic tip (13) contacts the bottom end of the first feeding needle (10) or the top end of the second feeding needle (12).

10. The millimeter wave antenna capable of rapid assembly according to claim 2, characterized in that: A third external thread section (207) for mounting and fixing the antenna is provided at the lower portion of the outer end surface of the metal base (2).

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