Multi-frequency switching integrated POI combiner and POI communication equipment

Abstract

The invention provides a multi-frequency switching integrated POI (Point of Interest) combiner and POI communication equipment. The multi-frequency switching integrated POI combiner comprises a multi-frequency combining module and a multi-frequency switching module, the multi-frequency combining module comprises a multi-frequency combining box and a combining bridge, the combining bridge is arranged in the multi-frequency combining box, and the combining bridge is electrically connected with an output terminal of the multi-frequency combining box; the multi-frequency switching module comprises a multi-frequency switching box and a multi-frequency switching coaxial line, the multi-frequency switching box is provided with a plurality of second resonant cavities, one end of the multi-frequency switching coaxial line is electrically connected with the combining bridge, and the other end of the multi-frequency switching coaxial line is coupled with the second resonant cavities. When the signal input is increased, the signal is input from the input terminal of the multi-frequency combiner box and then is directly coupled to the output terminal of the multi-frequency combiner box through the first resonant cavity, and the signal does not need to pass through a bridge, so that the bridge loss of the signal during combination is reduced, and the synchronism and stability of signal transmission are effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of POI, and particularly to a multi-frequency switching integrated POI combiner and a POI communication device. Background Art

[0002] With the development of mobile communication, the systems and frequency bands used are continuously increasing, and co-construction and sharing have gradually become an industry trend. However, due to the use of more high-frequency bands and more carriers, the total power after combining is also continuously increasing, making the intermodulation interference more and more serious. The traditional POI significantly reduces the system performance due to a large amount of uplink intermodulation interference and affects the user perception. As a result, operators are increasingly dissatisfied with the performance of multi-system combining, and the passive indoor distribution application has gradually been replaced by digital indoor distribution.

[0003] However, the traditional POI has a port number limit for the multi-port input frequency band, and the signal loss often increases during the multi-frequency conversion process, affecting signal synchronization and stability. Summary of the Invention

[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a multi-frequency switching integrated POI combiner and a POI communication device that can effectively improve the signal transmission synchronization and stability.

[0005] The purpose of the present disclosure is achieved through the following technical solutions:

[0006] A multi-frequency switching integrated POI combiner includes: a multi-frequency combining module and a multi-frequency switching module; the multi-frequency combining module includes a multi-frequency combining box and a combining hybrid, the multi-frequency combining box has a plurality of first resonant cavities, each of the first resonant cavities is correspondingly coupled to an input terminal of the multi-frequency combining box, and each of the first resonant cavities is coupled to the output terminal of the multi-frequency combining box, the combining hybrid is disposed in the multi-frequency combining box and is electrically connected to the output terminal of the multi-frequency combining box; the multi-frequency switching module includes a multi-frequency switching box and a multi-frequency switching coaxial line, the multi-frequency switching box has a plurality of second resonant cavities, each of the second resonant cavities is correspondingly coupled to an input terminal of the multi-frequency switching box, one end of the multi-frequency switching coaxial line is electrically connected to the combining hybrid, and the other end of the multi-frequency switching coaxial line is coupled to each of the second resonant cavities.

[0007] In one embodiment, the combining hybrid includes at least two first hybrids, the multi-frequency switching coaxial lines are two, each of the first hybrids is correspondingly electrically connected to one of the multi-frequency switching coaxial lines, and each of the first hybrids is electrically connected to an output terminal of the multi-frequency combining box.

[0008] In one embodiment, the multi-frequency combiner box has at least two first bridge isolation accommodation cavities, and each of the first bridges is received in one of the first bridge isolation accommodation cavities.

[0009] In one embodiment, a plurality of first fixing posts are arranged in the first bridge isolation accommodation cavity, and the first bridge is respectively connected to the plurality of first fixing posts.

[0010] In one embodiment, a through connection hole is formed in the side wall of the first bridge isolation accommodation cavity, and a part of the first bridge is inserted into the through connection hole and electrically connected to the output terminal of the multi-frequency combiner box.

[0011] In one embodiment, the combined bridge further includes at least two second bridges, the multi-frequency combiner box further has a second bridge isolation accommodation cavity, the second bridge isolation accommodation cavity communicates with each of the first bridge isolation accommodation cavities, the second bridge isolation accommodation cavity is used to receive the second bridge, and each of the second bridges is respectively connected to one of the first bridges and one of the multi-frequency switching coaxial lines.

[0012] In one embodiment, at least two of the second bridges are arranged in a cross manner in the second bridge isolation accommodation cavity.

[0013] In one embodiment, a plurality of second fixing posts are arranged in the second bridge isolation accommodation cavity, and the second bridge is respectively connected to the plurality of second fixing posts.

[0014] In one embodiment, the multi-frequency combiner box is detachably connected to the multi-frequency switching box.

[0015] A POI communication device includes the multi-frequency switching integrated POI combiner as described in any of the above embodiments.

[0016] Compared with the prior art, the present disclosure has at least the following advantages:

[0017] When signal combining occurs, the signal is input from the input terminal of the multi-frequency switching box, then sequentially passes through the second resonant cavity and the multi-frequency switching coaxial line and is combined to the combined bridge, and finally the signal is combined and output through the output terminal of the multi-frequency combiner box; when adding a signal input, the signal is input from the input terminal of the multi-frequency combiner box, and then directly coupled to the output terminal of the multi-frequency combiner box through the first resonant cavity. The signal does not need to pass through the bridge, reducing the bridge loss during signal combining and effectively improving the synchronization and stability of signal transmission. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present disclosure and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of a multi-frequency switching integrated POI combiner in an embodiment;

[0020] Figure 2 For Figure 1 Cross-sectional view of the multi-frequency switching integrated POI combiner shown along the A-A direction;

[0021] Figure 3 For Figure 1 Schematic diagram of the multi-frequency switching box in the multi-frequency switching integrated POI combiner shown;

[0022] Figure 4 For Figure 3 Cross-sectional view of the multi-frequency switching box shown along the B-B direction. Specific embodiments

[0023] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant accompanying drawings. The preferred embodiments of the present disclosure are shown in the accompanying drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure content of the present disclosure more thoroughly understood.

[0024] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiment.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs. The terms used in the description of the present disclosure herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] The present disclosure relates to a multi - frequency switching integrated POI combiner. In one embodiment, the multi - frequency switching integrated POI combiner includes a multi - frequency combining module and a multi - frequency switching module; the multi - frequency combining module includes a multi - frequency combining box and a combining bridge. The multi - frequency combining box has a plurality of first resonant cavities, each of the first resonant cavities is correspondingly coupled to an input terminal of the multi - frequency combining box, and each of the first resonant cavities is coupled to the output terminal of the multi - frequency combining box. The combining bridge is disposed in the multi - frequency combining box and is electrically connected to the output terminal of the multi - frequency combining box; the multi - frequency switching module includes a multi - frequency switching box and a multi - frequency switching coaxial line. The multi - frequency switching box has a plurality of second resonant cavities, each of the second resonant cavities is correspondingly coupled to an input terminal of the multi - frequency switching box. One end of the multi - frequency switching coaxial line is electrically connected to the combining bridge, and the other end of the multi - frequency switching coaxial line is coupled to each of the second resonant cavities. When signal combining occurs, the signal is input from the input terminal of the multi - frequency switching box, then sequentially passes through the second resonant cavity and the multi - frequency switching coaxial line and is combined to the combining bridge, and finally the signal is combined and output through the output terminal of the multi - frequency combining box; when an additional signal is input, the signal is input from the input terminal of the multi - frequency combining box, and then directly coupled to the output terminal of the multi - frequency combining box through the first resonant cavity. The signal does not need to pass through the bridge, reducing the bridge loss during signal combining and effectively improving the synchronization and stability of signal transmission.

[0027] Please refer to Figure 1 , which is a schematic structural diagram of a multi - frequency switching integrated POI combiner according to an embodiment of the present disclosure.

[0028] The multi - frequency switching integrated POI combiner 10 according to an embodiment includes a multi - frequency combining module 100 and a multi - frequency switching module 200. Please also refer to Figure 2 , the multi - frequency combining module 100 includes a multi - frequency combining box 110 and a combining bridge 120. The multi - frequency combining box 110 has a plurality of first resonant cavities 102, each of the first resonant cavities 102 is correspondingly coupled to an input terminal of the multi - frequency combining box 110, and each of the first resonant cavities 102 is coupled to the output terminal of the multi - frequency combining box 110. The combining bridge 120 is disposed in the multi - frequency combining box 110 and is electrically connected to the output terminal of the multi - frequency combining box 110. The multi - frequency switching module 200 includes a multi - frequency switching box 210 and a multi - frequency switching coaxial line 220. The multi - frequency switching box 210 has a plurality of second resonant cavities, each of the second resonant cavities is correspondingly coupled to an input terminal of the multi - frequency switching box 210. One end of the multi - frequency switching coaxial line 220 is electrically connected to the combining bridge 120, and the other end of the multi - frequency switching coaxial line 220 is coupled to each of the second resonant cavities.

[0029] In this embodiment, when signals are combined, they are input through the input terminals of the multi-frequency switching box 210, then sequentially pass through the second resonant cavity and the multi-frequency switching coaxial cable 220 and are combined to the combining bridge 120, and finally are output through the output terminals of the multi-frequency combining box 110 for signal combination output; when additional signals are input, they are input through the input terminals of the multi-frequency combining box 110, and then directly coupled to the output terminals of the multi-frequency combining box 110 through the first resonant cavity 102. The signals do not need to pass through the bridge, reducing the bridge loss during signal combination and effectively improving the synchronization and stability of signal transmission.

[0030] In another embodiment, the signals input by the multi-frequency switching box 210 are low-frequency signals, and the signals input by the multi-frequency combining box 110 are high-frequency signals. The high-frequency signals do not pass through the bridge during combination, further reducing the combination loss.

[0031] In one of the embodiments, please refer to Figure 2 , the combining bridge 120 includes at least two first bridges 122, the number of the multi-frequency switching coaxial cables 220 is two, each of the first bridges 122 is electrically connected to one of the multi-frequency switching coaxial cables 220 correspondingly, and each of the first bridges 122 is electrically connected to an output terminal of the multi-frequency combining box 110. In this embodiment, the first bridge 122 serves as a conductive component between the multi-frequency switching coaxial cable 220 and the output terminal of the multi-frequency combining box 110. Specifically, one end of the first bridge 122 is electrically connected to the multi-frequency switching coaxial cable 220, and the other end of the first bridge 122 is electrically connected to the output terminal of the multi-frequency combining box 110. The first bridges 122 correspond to the multi-frequency switching coaxial cables 220 one by one, and moreover, the first bridges 122 also correspond to the output terminals of the multi-frequency combining box 110 one by one, facilitating the classified combination of the signals on the multiple input terminals of the multi-frequency switching box 210 to improve the signal transmission stability.

[0032] Furthermore, the multi-frequency combining box 110 has at least two first bridge isolation accommodation cavities 104, and each of the first bridges 122 is accommodated in one of the first bridge isolation accommodation cavities 104. In this embodiment, the first bridge isolation accommodation cavities 104 correspond to the first bridges 122 one by one. Specifically, the first bridge isolation accommodation cavities 104 are located in the middle of the multi-frequency combining box 110, and the first bridges 122 are arranged in the first bridge isolation accommodation cavities 104, such that the first bridges 122 are located between the output terminals of the multi-frequency combining box 110 and the multi-frequency switching coaxial cables 220, facilitating the output transmission of the combined signals.

[0033] Furthermore, a plurality of first fixing posts 130 are disposed in the first bridge isolation accommodating cavity 104, and the first bridge 122 is respectively connected to the plurality of first fixing posts 130. In this embodiment, the first fixing posts 130 are located in the first bridge isolation accommodating cavity 104, the first fixing posts 130 correspond to the first bridge 122, and the plurality of first fixing posts 130 jointly fix the first bridge 122 in the first bridge isolation accommodating cavity 104. Specifically, the first bridge 122 is sleeved on the first fixing posts 130, which facilitates the installation of the first bridge 122.

[0034] In another embodiment, the plurality of first fixing posts 130 are evenly distributed in the first bridge isolation accommodating cavity 104. Specifically, the plurality of first fixing posts 130 are equidistantly distributed along the extending direction of the first bridge 122.

[0035] In one embodiment, please refer to Figure 2 , a through-connection hole 106 is formed in the side wall of the first bridge isolation accommodating cavity 104, and a part of the first bridge 122 is disposed through the through-connection hole 106 and electrically connected to the output terminal of the multi-frequency combiners box 110. In this embodiment, the through-connection hole 106 is located on the side wall of the first bridge isolation accommodating cavity 104, and the through-connection hole 106 communicates the first bridge isolation accommodating cavity 104 with the first resonance cavity 102 near the output terminal of the multi-frequency combiners box 110. The through-connection hole 106 is used for passing through the first bridge 122, that is, after the first bridge 122 passes through the through-connection hole 106, it is electrically connected to the output terminal of the multi-frequency combiners box 110, which facilitates stably connecting the first bridge 122 to the output terminal of the multi-frequency combiners box 110.

[0036] In one embodiment, please refer to Figure 2, the hybrid combiner 120 further includes at least two second bridges 124, the multi-frequency hybrid box 110 further has a second bridge isolation accommodation cavity 108, the second bridge isolation accommodation cavity 108 communicates with each of the first bridge isolation accommodation cavities 104, and the second bridge isolation accommodation cavity 108 is used to accommodate the second bridge 124. Each of the second bridges 124 is electrically connected to one of the first bridges 122 and one of the multi-frequency switching coaxial lines 220 respectively. In this embodiment, the second bridge 124 is located in the second bridge isolation accommodation cavity 108. Specifically, the second bridge isolation accommodation cavity 108 is located between the first bridge isolation accommodation cavity 104 and the multi-frequency switching coaxial line 220, so that the second bridge 124 serves as an intermediate connection bridge between the first bridge 122 and the multi-frequency switching coaxial line 220. The second bridge 124 connects the first bridge 122 and the multi-frequency switching coaxial line 220 in series. The second bridge 124 is in the second bridge isolation accommodation cavity 108, and through the isolation of the second bridge isolation accommodation cavity 108, the signal transmitted by the multi-frequency switching coaxial line 220 is filtered and isolated to improve the stability of the signal.

[0037] Further, at least two of the second bridges 124 are cross-arranged in the second bridge isolation accommodation cavity 108. In this embodiment, the two second bridges 124 are arranged in a cross manner in the second bridge isolation accommodation cavity 108. Specifically, the two second bridges 124 are placed in a double-layer parallel manner, and the two second bridges 124 intersect at the center, so that the two second bridges 124 form a central symmetric structure that is parallel up and down. In this way, under the structure where the two second bridges 124 are symmetrically crossed, the phase shift between the combined signals of the two second bridges 124 is reduced, so that the combined signals transmitted to the first bridge 122 through the second bridge 124 are signal-synchronized, thereby improving the stability of the combined signals output by the output terminals of the multi-frequency hybrid box 110.

[0038] In another embodiment, a plurality of second fixing posts 140 are disposed in the second bridge isolation accommodating cavity 108, and the second bridge 124 is respectively connected to the plurality of second fixing posts 140. In this embodiment, the second fixing posts 140 are located in the second bridge isolation accommodating cavity 108, the second fixing posts 140 correspond to the second bridge 124, the second fixing posts 140 serve as the fixing components of the second bridge 124, and the second fixing posts 140 stably mount the second bridge 124 in the second bridge isolation accommodating cavity 108. Specifically, the second fixing posts 140 are connected to the bottom of the second bridge isolation accommodating cavity 108, and the second bridge 124 is sleeved on the second fixing posts 140, so that the second bridge 124 is stably mounted on the second fixing posts 140 to improve the mounting stability of the second bridge 124 in the second bridge isolation accommodating cavity 108.

[0039] In one embodiment, please refer to Figure 1 , the multi-frequency combining box 110 is detachably connected to the multi-frequency switching box 210. In this embodiment, the multi-frequency combining box 110 serves as a combining box for signals. The multi-frequency combining box 110 is communicatively connected to the multi-frequency switching box 210 through the multi-frequency switching coaxial cable 220. The multi-frequency combining box 110 and the multi-frequency switching box 210 are taken as a whole. By the detachable connection between the multi-frequency combining box 110 and the multi-frequency switching box 210, it is convenient to quickly adjust the increase or decrease of the number of signals.

[0040] In one embodiment, please refer to Figure 3 , the multi-frequency switching box 210 includes a multi-frequency combining box body 212 and a low-frequency combining component 214. The multi-frequency combining box body 212 has at least two low-frequency combining cavities 202. The low-frequency combining component 214 includes at least two low-frequency combining elements 216, and each low-frequency combining element 216 is disposed in one of the low-frequency combining cavities 202. Each low-frequency combining element 216 includes a plurality of low-frequency combining units 218. One low-frequency combining unit 218 of each low-frequency combining element 216 is used for electrically connecting to a low-frequency splitting input end, and the remaining one of the low-frequency combining units 218 of each low-frequency combining element 216 is used for commonly electrically connecting to a low-frequency combining output end. Please refer to Figure 4The low-frequency combining unit 218 includes a low-frequency combining resonance platform 2182 and a frequency-reducing combining resonance rod 2184. The low-frequency combining resonance platform 2182 is connected to the bottom of the low-frequency combining cavity 202, and each of the low-frequency combining resonance platforms 2182 is connected to each other. The frequency-reducing combining resonance rod 2184 includes a frequency-reducing resonance rod body 2186 and a frequency-reducing top cover 2188 that are connected to each other. The frequency-reducing resonance rod body 2186 is connected to the low-frequency combining resonance platform 2182. The frequency-reducing top cover 2188 is located on a side of the frequency-reducing resonance rod body 2186 away from the low-frequency combining resonance platform 2182, and the cover edge of the frequency-reducing top cover 2188 extends toward the low-frequency combining resonance platform 2182.

[0041] In this embodiment, when low-frequency combining is performed, after the low-frequency signal passes through the down-frequency combining resonant rod 2184, the cover edge of the down-frequency combining top cover 2188 extends downward, that is, the down-frequency combining top cover 2188 is turned downward, so that the resonant capacitance corresponding to the down-frequency combining resonant rod 2184 increases, thereby causing the down-frequency combining resonant rod 2184 to down-frequency part of the signal, so that the combined signal can be combined after being reduced to the specified frequency, thereby improving the stability of the combined signal.

[0042] In one embodiment, see Figure 4 The frequency reduction top cover 2188 includes a top cover portion 2188a and a downward turning portion 2188b which are connected to each other. The top cover portion 2188a is connected to the frequency reduction resonance rod body 2186. The downward turning portion 2188b is located at the edge of the top cover portion 2188a. The downward turning portion 2188b is protruded toward the low-frequency combined resonance platform 2182. In this embodiment, the top cover portion 2188a is located at the top of the frequency reduction resonance rod body 2186. The top cover portion 2188a also serves as a component for the downward turning portion 2188b to extend outward, so that the top cover portion 2188a extends the downward turning portion 2188b in a direction away from the frequency reduction resonance rod body 2186, thereby increasing the distance between the downward turning portion 2188b and the frequency reduction resonance rod body 2186, thereby increasing the resonance capacitance corresponding to the frequency reduction combined resonance rod 2184, and having a better frequency reduction effect.

[0043] Further, an included angle is formed between the downwardly flipped portion 2188b and the top cover portion 2188a, and the included angle is 60° to 135°. The downwardly flipped portion 2188b and the top cover portion 2188a are mutually adjustable, facilitating the adjustment of the distance between the downwardly flipped portion 2188b and the frequency-down conversion resonant rod body 2186, so that the resonant capacitance corresponding to the frequency-down conversion combined resonant rod 2184 is adjustable. Specifically, the included angle formed between the downwardly flipped portion 2188b and the top cover portion 2188a is 90°, that is, the downwardly flipped portion 2188b and the top cover portion 2188a are perpendicularly arranged to each other, so that the resonant capacitance corresponding to the frequency-down conversion combined resonant rod 2184 is maximized, thereby maximizing the frequency-down conversion ability of the frequency-down conversion combined resonant rod 2184.

[0044] In another embodiment, the downwardly flipped portion 2188b and the top cover portion 2188a are integrally formed, enhancing the overall strength of the frequency-down conversion top cover 2188.

[0045] In one embodiment, please refer to Figure 4 , the diameter of the frequency-down conversion top cover 2188 is greater than the diameter of the frequency-down conversion resonant rod body 2186. In this embodiment, the frequency-down conversion top cover 2188 serves as a frequency-down conversion component, and the size relationship between the diameter of the frequency-down conversion top cover 2188 and the diameter of the frequency-down conversion resonant rod body 2186 determines the change in the size of the resonant capacitance corresponding to the frequency-down conversion combined resonant rod 2184. The diameter of the frequency-down conversion top cover 2188 is greater than the diameter of the frequency-down conversion resonant rod body 2186 to facilitate the formation of an equivalent resonant capacitance between the frequency-down conversion top cover 2188 and the frequency-down conversion resonant rod body 2186.

[0046] In one embodiment, please refer to Figure 4 , the low-frequency combined unit 218 further includes a rod body mounting member 2181. The frequency-down conversion combined resonant rod 2184 is provided with a mounting hole 204, and the rod body mounting member 2181 passes through the mounting hole 204 and is connected to the low-frequency combined resonant platform 2182. In this embodiment, the rod body mounting member 2181 is located within the mounting hole 204. After passing through the mounting hole 204, the rod body mounting member 2181 is connected to the low-frequency combined resonant platform 2182, that is, the rod body mounting member 2181 is simultaneously connected to the low-frequency combined resonant platform 2182 and the frequency-down conversion combined resonant rod 2184, facilitating the fixing of the frequency-down conversion combined resonant rod 2184 on the low-frequency combined resonant platform 2182 to improve the mounting stability of the frequency-down conversion combined resonant rod 2184. Among them, the rod body mounting member 2181 is a tapped screw.

[0047] In one embodiment, please refer to Figure 3, the distance between any two adjacent low-frequency combining units 218 is equal. In this embodiment, the low-frequency combining unit 218 serves as a combining and transmitting unit for low-frequency signals. The low-frequency combining units 218 are placed at equal distances from each other, minimizing the loss of low-frequency signals during downconversion and ensuring the integrity of the finally combined output signal to avoid distortion of the combined output signal.

[0048] In one embodiment, the present disclosure also relates to a POI communication device, including the multi-frequency switching integrated POI combiner as described in any of the above embodiments. In this embodiment, the multi-frequency switching integrated POI combiner includes a multi-frequency combining module and a multi-frequency switching module; the multi-frequency combining module includes a multi-frequency combining box and a combining hybrid. The multi-frequency combining box has a plurality of first resonant cavities, each of the first resonant cavities is correspondingly coupled to an input terminal of the multi-frequency combining box, and each of the first resonant cavities is coupled to the output terminal of the multi-frequency combining box. The combining hybrid is disposed inside the multi-frequency combining box and is electrically connected to the output terminal of the multi-frequency combining box; the multi-frequency switching module includes a multi-frequency switching box and a multi-frequency switching coaxial cable. The multi-frequency switching box has a plurality of second resonant cavities, each of the second resonant cavities is correspondingly coupled to an input terminal of the multi-frequency switching box. One end of the multi-frequency switching coaxial cable is electrically connected to the combining hybrid, and the other end of the multi-frequency switching coaxial cable is coupled to each of the second resonant cavities. When signals are combined, they are input through the input terminals of the multi-frequency switching box, then merged into the combining hybrid through the second resonant cavities and the multi-frequency switching coaxial cable in sequence, and finally signal combination output is performed through the output terminal of the multi-frequency combining box; when additional signals are input, they are input through the input terminals of the multi-frequency combining box, and then directly coupled to the output terminal of the multi-frequency combining box through the first resonant cavity. The signals do not need to pass through the hybrid, reducing the hybrid loss of the signals during combination and effectively improving the synchronization and stability of signal transmission.

[0049] The above-described embodiments merely represent several implementation manners of the present disclosure. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A multi-frequency switching integrated POI combiner, characterized in that: include: A multi-frequency combining module, the multi-frequency combining module comprising a multi-frequency combining box and a combining bridge, the multi-frequency combining box having a plurality of first resonant cavities, each of the first resonant cavities being coupled to an input terminal of the multi-frequency combining box, and each of the first resonant cavities being coupled to an output terminal of the multi-frequency combining box, the combining bridge being arranged in the multi-frequency combining box, and the combining bridge being electrically connected to the output terminal of the multi-frequency combining box; A multi-frequency switching module, the multi-frequency switching module includes a multi-frequency switching box and a multi-frequency switching coaxial line, the multi-frequency switching box has a plurality of second resonant cavities, each of the second resonant cavities is coupled to an input terminal of the multi-frequency switching box, one end of the multi-frequency switching coaxial line is electrically connected to the combining bridge, and the other end of the multi-frequency switching coaxial line is coupled to each of the second resonant cavities.

2. The multi-frequency switching integrated POI combiner according to claim 1, characterized in that: The combining bridge includes at least two first bridges, the multi-frequency switching coaxial lines are two, each of the first bridges is electrically connected to a corresponding multi-frequency switching coaxial line, and each of the first bridges is electrically connected to an output terminal of the multi-frequency combining box.

3. The multi-frequency switching integrated POI combiner according to claim 2, characterized in that: The multi-frequency combiner box has at least two first bridge isolation accommodating chambers, and each first bridge is accommodated in one of the first bridge isolation accommodating chambers.

4. The multi-frequency switching integrated POI combiner according to claim 3, characterized in that: A plurality of first fixing pillars are arranged in the first bridge isolation accommodating cavity, and the first bridge is respectively connected to the plurality of first fixing pillars.

5. The multi-frequency switching integrated POI combiner according to claim 3, characterized in that: A through hole is formed on the side wall of the first bridge isolation accommodating cavity, and a portion of the first bridge is inserted into the through hole and is electrically connected to the output terminal of the multi-frequency combiner box.

6. The multi-frequency switching integrated POI combiner according to claim 3, characterized in that: The combining bridge also includes at least two second bridges, and the multi-frequency combining box also has a second bridge isolation accommodating cavity, the second bridge isolation accommodating cavity is connected to each of the first bridge isolation accommodating cavities, the second bridge isolation accommodating cavity is used to accommodate the second bridges, and each of the second bridges is electrically connected to one of the first bridges and one of the multi-frequency switching coaxial lines.

7. The multi-frequency switching integrated POI combiner according to claim 6, characterized in that: At least two of the second bridges are cross-disposed in the second bridge isolation accommodating cavity.

8. The multi-frequency switching integrated POI combiner according to claim 6, characterized in that: A plurality of second fixing pillars are arranged in the second bridge isolation accommodating cavity, and the second bridge is respectively connected to the plurality of second fixing pillars.

9. The multi-frequency switching integrated POI combiner according to claim 1, characterized in that: The multi-frequency combining box is detachably connected to the multi-frequency switching box.

10. A POI communication device, characterized in that: It comprises the multi-frequency switching integrated POI combiner as claimed in any one of claims 1 to 9.

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