Circularly polarized segmented antenna

Abstract

The invention relates to a circularly polarized segmented antenna, which comprises an antenna unit, a target power divider, a combiner and an equipment connector, and is characterized in that the antenna unit comprises multiple layers of antennas, and the multiple layers of antennas are used for covering different antenna frequency bands; the target power divider is connected with the antenna unit, the multi-layer antenna realizes circular polarization through the target power divider, and a first port and a second port are formed; the combiner comprises a transmission port and two butt joint ports, and the combiner is in butt joint with the first port and the second port through the two butt joint ports; the first end of the device connector is connected with the transmission port, and the second end of the device connector is connected with the target device. The circularly polarized segmented antenna can cover multiple antenna frequency bands, and can meet the requirement of low elevation angle in the multiple antenna frequency bands.

Description

Technical Field

[0001] The present application relates to the technical field of darkroom test antennas, and in particular to a circularly polarized segmented antenna. Background Art

[0002] With the continuous development of navigation technology, especially the widespread application of satellite navigation systems, the requirements for antennas are also increasing. In the field of antenna technology, circularly polarized antennas are widely used because of their stability in signal transmission under various environments. Circularly polarized antennas can reduce signal reflections and multipath effects, and improve the accuracy and reliability of the system. In addition, the frequency band range of navigation systems is also constantly expanding, which puts higher requirements on the bandwidth and frequency response of test antennas. In the research and development and testing process of navigation systems, antenna performance testing is particularly critical. The circularly polarized transmitting antenna in the navigation darkroom is an antenna specially used to test navigation equipment in a controlled environment to ensure that its performance meets the expected standards under various conditions. In order to accurately evaluate the performance of navigation equipment, it is usually necessary to use a test antenna that can work stably in different frequency bands and angles.

[0003] Among the existing circularly polarized transmitting antennas in navigation darkrooms, planar spirals or logarithmic spirals are mostly used. Planar spirals or logarithmic spirals can provide circularly polarized electromagnetic waves within a certain frequency band through their periodically arranged conductor coils or spiral shapes, meeting basic testing requirements.

[0004] However, the frequency band covered by the planar spiral or logarithmic spiral used in the prior art is relatively single. At the same time, when it is necessary to perform low elevation angle calibration on the circularly polarized transmitting antenna in the navigation darkroom, the planar spiral or logarithmic spiral cannot meet the low elevation angle requirements in the multi-antenna frequency band. Summary of the invention

[0005] Based on this, it is necessary to provide a circularly polarized segmented antenna that can cover multiple antenna frequency bands and meet low elevation angle requirements in multiple antenna frequency bands to address the above technical problems.

[0006] In a first aspect, the present application provides a circularly polarized segmented antenna, comprising:

[0007] An antenna unit, including a multi-layer antenna, wherein the multi-layer antenna is used to cover different antenna frequency bands;

[0008] A target power divider is connected to the antenna unit, and the multi-layer antenna realizes circular polarization through the target power divider, and forms a first port and a second port;

[0009] A combiner, comprising a transmission port and two docking ports, the combiner docking with the first port and the second port through the two docking ports;

[0010] A device connector, wherein a first end of the device connector is connected to the transmission port, and a second end of the device connector is connected to the target device.

[0011] In one of the embodiments, the docking port of the combiner is a radio frequency connector; the circularly polarized segmented antenna also includes a cable, and the cable is used to establish a connection between the first port and the second port and the two radio frequency connectors.

[0012] In one embodiment, the cable is further used to connect the first end of the device connector to the transmission port of the combiner.

[0013] In one embodiment, the antenna unit includes: a bottom antenna, a middle antenna, and a top antenna;

[0014] The bottom antenna and the middle antenna adopt a coaxial feeding mode, and the bottom antenna and the middle antenna include a plurality of probes, and the plurality of probes divide the bottom antenna and the middle antenna into a plurality of antenna frequency bands.

[0015] In one of the embodiments, the top antenna is fed separately and is used to cover the high antenna frequency band.

[0016] In one embodiment, the antenna unit includes: a bottom antenna, a middle antenna and a top antenna; the bottom antenna and the middle antenna are combined into a first port through a target power divider, and the top antenna is combined into a second port through the target power divider.

[0017] In one embodiment, the combiner includes a microstrip power divider, a low-pass filter and a high-pass filter.

[0018] In one of the embodiments, the circularly polarized segmented antenna further includes a base, and the base is used to carry the antenna unit.

[0019] In one embodiment, the combiner is fixed on the base.

[0020] In one of the embodiments, the circularly polarized segmented antenna further includes a radome, and the radome is used to protect the antenna unit.

[0021] The above-mentioned circularly polarized segmented antenna includes an antenna unit, a target power divider, a combiner and a device connector. The antenna unit includes a multi-layer antenna, which is used to cover different antenna frequency bands. At the same time, the multi-layer antenna can meet the low elevation angle requirement by setting each layer of antenna; the target power divider is connected to the antenna unit, and the multi-layer antenna realizes circular polarization through the target power divider, and forms a first port and a second port; the combiner includes a transmission port and two docking ports, and the combiner docks with the first port and the second port through the two docking ports; the first end of the device connector is connected to the transmission port, and the second end of the device connector is connected to the target device. The use of this circularly polarized segmented antenna can cover multiple antenna frequency bands and meet the low elevation angle requirement in multiple antenna frequency bands. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] FIG1 is a schematic diagram of the structure of a circularly polarized segmented antenna in one embodiment;

[0024] FIG2 is a schematic diagram of a target power divider in one embodiment;

[0025] FIG. 3 is a schematic diagram of a partial structure of a circularly polarized segmented antenna in one embodiment.

[0026] 10. Circularly polarized segmented antenna; 101. Antenna unit; 102. Target power divider; 103. Combiner; 104. Equipment connector; 105. Cable; 106. Base; 107. Radome; 1012. Bottom antenna; 1014. Middle antenna; 1016. Top antenna; 1032. RF connector. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] Traditionally, circularly polarized transmitting antennas in navigation darkrooms mostly use planar spirals or logarithmic spirals. The design of planar spiral and logarithmic spiral antennas is based on periodic geometric shapes, which will limit the working effect of different frequency bands, especially in a wide frequency band. The periodic structure of the planar spiral or logarithmic spiral may not be able to meet the low elevation angle requirements in certain frequency bands. Therefore, the present application proposes a circularly polarized segmented antenna, the antenna unit of which uses a multi-layer antenna, each layer of antennas is used to cover different antenna frequency bands, and each layer of antennas is designed in coordination with each other, which can optimize the performance of the circularly polarized segmented antenna in different frequency bands while effectively meeting the low elevation angle requirements.

[0034] In an exemplary embodiment, Figure 1 is a schematic diagram of the circular polarization segmented antenna structure. The circular polarization segmented antenna 10 includes an antenna unit 101, a target power divider 102, a combiner 103 and a device connector 104. The antenna unit 101 includes a multi-layer antenna, and the multi-layer antenna is used to cover different antenna frequency bands; the target power divider 102 is connected to the antenna unit 101, and the multi-layer antenna realizes circular polarization through the target power divider 102, and forms a first port and a second port; the combiner 103 includes a transmission port and two docking ports, and the combiner 103 docks with the first port and the second port through the two docking ports; the first end of the device connector 104 is connected to the transmission port, and the second end of the device connector 104 is connected to the target device.

[0035] Optionally, in order to meet the transmission requirements of signals in different frequency bands, the antenna unit 101 includes multiple layers of antennas, each layer of antennas is designed to cover a specific antenna frequency band, and the multiple layers of antennas are superimposed so that the antenna unit 101 can cover multiple antenna frequency bands. Each layer of antennas of the antenna unit can be set as a microstrip antenna, and each layer of antennas can include a radiating element, a feeding network, a matching network, etc. According to the different radiation frequency bands of each layer of antennas, the design of the radiating element can also be different, and the radiating element can be a patch, a gap, etc. The feeding network is used to transmit the signal to the radiating element of each layer of antennas. The feeding network may include a feeder and a feeding point, and the feeder may be a coaxial cable. The matching network is used to adjust the impedance matching of each layer of antennas to ensure effective transmission of the signal. In the multi-layer antenna, the antenna with a lower radiation frequency band can use a larger antenna panel with a larger radiation area, and the antenna with a higher radiation frequency band can use a smaller patch antenna. Each layer of antennas can be connected by a feeding network, which transmits signals from an external source to each layer of antennas. For example, when the antenna unit includes a bottom antenna, a middle antenna and a top antenna, the bottom antenna, the middle antenna and the top antenna are directly connected via a coaxial cable, or the bottom antenna and the middle antenna are connected via a coaxial cable to enable a separate feed for the top antenna.

[0036] The target power divider 102 is connected to the antenna unit 101, and the multi-layer antenna realizes circular polarization through the target power divider 102, and forms a first port and a second port, and the first port and the second port are circularly polarized ports. The schematic diagram of the target power divider 102 is shown in FIG2, and the target power divider 102 is used to distribute the input signal to multiple ports of the target power divider 102, such as after the target power divider 102 receives the signal, the target power divider 102 distributes the signal to two ports through the distribution network inside the target power divider 102. When the antenna unit includes a bottom antenna, a middle antenna and a top antenna, the bottom antenna can be placed on the target power divider 102, and the bottom antenna, the middle antenna and the top antenna can be connected through a feeder, such as the bottom antenna and the middle antenna are connected to one of the ports of the target power divider 102 through the same feeder, so that the bottom antenna and the middle antenna form a first port through the target power divider, and the top antenna is connected to another port of the target power divider 102 through the feeder, so that the top antenna forms a second port through the target power divider.

[0037] The combiner 103 includes a transmission port and two docking ports, wherein the two docking ports are connected to the first port and the second port, respectively. The transmission port of the combiner 103 is used to combine the signals received from the two docking ports into one signal output so as to transmit the combined signal to other systems or devices. The combiner 103 allows the multi-layer antenna system to effectively receive and transmit signals in different frequency bands, while achieving unified processing and output of signals through the combiner. Specifically, the transmission port of the combiner 103 is connected to the target device through the device connector 104, wherein the target device can be a test and debugging device.

[0038] In this embodiment, the circularly polarized segmented antenna includes an antenna unit, a target power divider, a combiner and a device connector. The antenna unit includes a multi-layer antenna. The multi-layer antenna is used to cover different antenna frequency bands. At the same time, the antennas of each layer are designed in a coordinated manner, so that the circularly polarized segmented antenna can optimize performance in different frequency bands, so that the multi-layer antenna can meet the low elevation angle requirements; the multi-layer antenna realizes circular polarization through the target power divider, and forms a first port and a second port. The combiner docks with the first port and the second port through two docking ports. The combiner receives signals transmitted from the first port and the second port from the two docking ports, combines the signals into one signal, and transmits it to the target device through the device connector for connection. In the field of darkroom test antenna technology, the circularly polarized segmented antenna can cover multiple antenna frequency bands and meet the low elevation angle requirements in multiple antenna frequency bands, thereby improving the accuracy of the darkroom test antenna.

[0039] In an exemplary embodiment, as shown in FIG3 , which is a schematic diagram of the partial structure of a circularly polarized segmented antenna, the antenna unit 101 includes: a bottom antenna 1012, a middle antenna 1014 and a top antenna 1016; the bottom antenna 1012 and the middle antenna 1014 use a coaxial feeding method, and the bottom antenna 1012 and the middle antenna 1016 include multiple probes, which divide the bottom antenna 1012 and the middle antenna 1016 into multiple antenna frequency bands.

[0040] Exemplarily, the bottom antenna 1012 is the lowest layer of the antenna unit, used for radiating a lower antenna frequency band, and is designed as a larger-sized microstrip antenna. The middle antenna 1014 is located above the bottom antenna 1012. The top antenna 1016 is the top layer of the antenna unit, used for radiating a higher antenna frequency band. The bottom antenna 1012 and the middle antenna 1016 are coaxially fed, that is, the bottom antenna 1012 and the middle antenna 1014 are connected to an external signal source through a coaxial feeder, and the signal is transmitted to the feeding points of the bottom antenna 1012 and the middle antenna 1014 through the coaxial cable. The bottom antenna 1012 and the middle antenna 1016 include multiple probes, and the bottom antenna 1012 and the middle antenna 1016 include four probes. Each probe can be located at a different position of the bottom antenna 1012 and the middle antenna 1016, dividing the bottom antenna 1012 and the middle antenna 1016 into two antenna frequency bands, specifically, the 1.160GHZ to 1.280GHZ frequency band and the 1.550GHZ to 1.620GHZ frequency band.

[0041] In the previous exemplary embodiment, the top antenna 1016 is fed separately, and the top antenna 1016 is used to cover the high antenna frequency band.

[0042] The separate center feed refers to the use of an independent feeding method. The top antenna 1016 is separated from the feeding systems of other antenna layers (such as the bottom antenna and the middle antenna), and the top antenna 1016 mainly radiates the 2.480 GHZ to 2.520 GHZ frequency band.

[0043] In this embodiment, the bottom antenna and the middle antenna are coaxially fed and coupled through multiple probes so that the bottom antenna and the middle antenna radiate multiple antenna frequency bands. The top antenna is separately fed to cover a higher antenna frequency band, thereby enabling the circularly polarized segmented antenna to cover multiple antenna frequency bands.

[0044] In an exemplary embodiment, the antenna unit 101 includes: a bottom antenna 1012, a middle antenna 1014 and a top antenna 1016; the bottom antenna 1012 and the middle antenna 1014 are combined into a first port through a target power divider, and the top antenna 1016 is combined into a second port through the target power divider 102.

[0045] Optionally, the target power divider 102 combines the signals of the bottom antenna 1012 and the middle antenna 1014 into a single port, referred to as the first port. Exemplarily, the bottom antenna 1012 and the middle antenna 1014 can be connected to one of the ports of the target power divider 102 to form the first port. Another port of the target power divider 102 is connected to the top antenna 1016 to form the second port. The target power divider 102 can combine the signals of the bottom antenna 1012 and the middle antenna 1014 through its internal distribution network, so that the combined signal is transmitted at the first port. The signal of the top antenna 1016 can be transmitted through the second port.

[0046] In this embodiment, the target power divider is used to achieve circular polarization of the bottom antenna, the middle antenna and the top antenna, and to form a first port and a second port, which can effectively synthesize and distribute the antenna signals, reduce interference between antenna signals, and improve the overall stability and performance of the system. The signals of the bottom antenna, the middle antenna and the top antenna are synthesized to achieve wide-band coverage, thereby meeting the test requirements of different frequency bands.

[0047] In an exemplary embodiment, the docking port of the combiner 103 is a radio frequency connector 1032 ; please refer to FIG. 1 again, the circularly polarized segmented antenna 10 further includes a cable 105 , and the cable 105 is used to establish a connection between the first port and the second port and the two radio frequency connectors 1032 .

[0048] The combiner 103 is used to realize signal synthesis and distribution, such as synthesizing multiple signals into a single port. The combiner 103 can combine signals from different sources into a composite signal, or distribute a single signal to multiple ports. Exemplarily, the combiner 103 includes a transmission port and two docking ports, and the two docking ports can be RF connectors 1032. The two RF connectors 1032 of the combiner 103 are respectively docked with the first port and the second port through the cable 105. The combiner 103 synthesizes the signals transmitted by the first port and the second port into a single port, i.e., the transmission port of the combiner 103.

[0049] In the previous exemplary embodiment, the cable 105 is also used to connect the first end of the device connector 104 to the transmission port of the combiner 103 .

[0050] Optionally, the transmission port of the combiner 103 can be used to output the signal synthesized by the first port and the second port, and the transmission port of the combiner 103 is connected to the device connector 104 through the cable 105. The device connector 104 is used to transmit the signal transmitted by the transmission port of the combiner 103 to the target device, which can be a test and debugging device.

[0051] In this embodiment, the power divider circularly polarizes the bottom antenna, the middle antenna and the top antenna, and forms a first port and a second port. The combiner connects to the first port and the second port through an RF connector, and synthesizes the signals transmitted by the first port and the second port into a single port, effectively integrating the signals of the multi-layer antennas, so that the circularly polarized segmented antenna can cover a wider frequency band.

[0052] In an exemplary embodiment, the combiner 103 includes a microstrip power divider, a low-pass filter, and a high-pass filter.

[0053] Among them, the microstrip power divider is used to distribute the input signal to multiple ports, or to combine multiple input signals into one port. The low-pass filter is used to filter out signals above a certain frequency and only allow signals below this frequency to pass. The high-pass filter is used to filter out signals below a certain frequency and only allow signals above this frequency to pass.

[0054] In this embodiment, the low-pass filter and the high-pass filter ensure that the signal maintains its integrity when passing through the combiner, avoiding frequency interference and signal attenuation. The combiner can effectively process and distribute signals of multiple frequency bands, so that the circularly polarized segmented antenna meets the requirements of different frequency bands.

[0055] In an exemplary embodiment, please refer to FIG. 1 again, the circular polarization segmented antenna 10 further includes a base 106 , and the base 106 is used to carry the antenna unit 102 .

[0056] The base 106 is used to support and stabilize the entire antenna system, and provide mechanical support for the antenna unit 102 and the combiner 103. The base 106 can ensure that the antenna does not move or vibrate during operation. The base 106 can be made of aluminum alloy or steel, which can provide sufficient strength and stability.

[0057] In the previous exemplary embodiment, the combiner is fixed on the base.

[0058] Exemplarily, screw holes are reserved on the combiner 103 and the base 106, and the combiner 103 is fixed to the base 106 using screws, or slots or buckles are preset on the base 106, so that the combiner 103 is fixed by inserting or snapping into these slots.

[0059] In this embodiment, the base of the circularly polarized segmented antenna can provide mechanical support for the antenna unit and the combiner, thereby ensuring that the antenna will not be displaced or vibrated during operation.

[0060] In an exemplary embodiment, the circularly polarized segmented antenna 10 further includes a radome 107 , which is used to protect the antenna unit 101 .

[0061] Exemplarily, the radome 107 is used to protect the antenna unit 101 from environmental factors (such as rain, dust, sand and ultraviolet rays), extend the service life of the antenna system, and maintain the stability of the antenna performance. The shape of the radome 107 is adjusted and set according to the size and installation requirements of the antenna unit. The shape of the radome 107 can be dome-shaped or cylindrical. After aligning the radome 107 with the antenna unit 101 and ensuring that the radome 107 can completely cover the antenna unit 101, the radome 107 is fixed to the base 106 using a fixing member, which can be a screw, a clamp or a fastener.

[0062] In this embodiment, the antenna cover of the circularly polarized segmented antenna can ensure the stable operation of the circularly polarized segmented antenna under various environmental conditions.

[0063] In another embodiment, a circular polarization segmented antenna is provided, the circular polarization segmented antenna comprising:

[0064] The antenna unit includes a multi-layer antenna, which is used to cover different antenna frequency bands; the antenna unit includes: a bottom antenna, a middle antenna and a top antenna; the bottom antenna and the middle antenna adopt a coaxial feeding method, and the bottom antenna and the middle antenna include multiple probes, and the multiple probes divide the bottom antenna and the middle antenna into multiple antenna frequency bands; the top antenna is separately fed, and the top antenna is used to cover a high antenna frequency band.

[0065] The target power divider is connected to the antenna unit. The multi-layer antenna realizes circular polarization through the target power divider and forms a first port and a second port. The bottom antenna and the middle antenna are combined into a first port through the target power divider, and the top antenna forms a second port through the target power divider.

[0066] The combiner comprises a transmission port and two docking ports, wherein the docking ports of the combiner are radio frequency connectors; the combiner is docked with a first port and a second port via the two docking ports; the combiner also comprises a microstrip power divider, a low-pass filter and a high-pass filter.

[0067] The cable is used to establish a connection between the first port and the second port and the two RF connectors; the cable is also used to connect the first end of the device connector to the transmission port of the combiner.

[0068] A device connector has a first end connected to the transmission port and a second end connected to the target device.

[0069] The base is used to carry the antenna unit. The combiner is fixed on the base.

[0070] Radome: The radome is used to protect the antenna unit.

[0071] In this embodiment, the bottom antenna and the middle antenna adopt a coaxial feeding method, and multiple probes are coupled to enable the bottom antenna and the middle antenna to radiate multiple antenna frequency bands. The top antenna is fed separately to cover a higher antenna frequency band, thereby enabling the circularly polarized segmented antenna to cover multiple antenna frequency bands. The power divider circularly polarizes the bottom antenna, the middle antenna, and the top antenna, and forms a first port and a second port. The combiner connects to the first port and the second port through an RF connector, and synthesizes the signals transmitted by the first port and the second port into a single port, effectively integrating the signals of the multi-layer antennas, so that the circularly polarized segmented antenna can cover a wider frequency band.

[0072] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A circularly polarized segmented antenna, characterized in that: The circular polarization segmented antenna comprises: The antenna unit includes multiple layers of antennas, wherein the multiple layers of antennas are used to cover different antenna frequency bands; A target power divider is connected to the antenna unit, and the multiple layers of the antenna are circularly polarized through the target power divider to form a first port and a second port; A combiner, comprising a transmission port and two docking ports, wherein the combiner is docked with the first port and the second port via the two docking ports; A device connector, wherein a first end of the device connector is connected to the transmission port, and a second end of the device connector is connected to a target device.

2. The circularly polarized segmented antenna according to claim 1, characterized in that: The docking port of the combiner is a radio frequency connector; the circularly polarized segmented antenna also includes a cable, and the cable is used to establish a connection between the first port and the second port and the two radio frequency connectors.

3. The circularly polarized segmented antenna according to claim 2, characterized in that: The cable is also used to connect the first end of the device connector to the transmission port of the combiner.

4. The circularly polarized segmented antenna according to claim 1, characterized in that: The antenna unit includes: a bottom antenna, a middle antenna and a top antenna; The bottom antenna and the middle antenna adopt a coaxial feeding mode, and the bottom antenna and the middle antenna include a plurality of probes, and the plurality of probes divide the bottom antenna and the middle antenna into a plurality of antenna frequency bands.

5. The circularly polarized segmented antenna according to claim 4, characterized in that: The top antenna is fed separately, and the top antenna is used to cover a high antenna frequency band.

6. The circularly polarized segmented antenna according to claim 1, characterized in that: The antenna unit comprises: a bottom antenna, a middle antenna and a top antenna; the bottom antenna and the middle antenna are combined into a first port through a target power divider, and the top antenna is combined into a second port through the target power divider.

7. The circularly polarized segmented antenna according to claim 1, characterized in that: The combiner comprises a microstrip power divider, a low-pass filter and a high-pass filter.

8. The circularly polarized segmented antenna according to claim 1, characterized in that: The circularly polarized segmented antenna also includes a base, and the base is used to support the antenna unit.

9. The circularly polarized segmented antenna according to claim 8, characterized in that: The combiner is fixed on the base.

10. The circularly polarized segmented antenna according to claim 1, characterized in that: The circularly polarized segmented antenna further comprises a radome, and the radome is used for protecting the antenna unit.

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