Excitation feed positioning antenna based on cavity structure

Abstract

The utility model belongs to the technical field of positioning antennas, and particularly provides an excitation feed positioning antenna based on a cavity structure, which comprises industrial plastic and a plurality of PINs, the industrial plastic is provided with a plurality of through holes at intervals, the plurality of through holes are in one-to-one correspondence with the plurality of PINs, and the PINs are mounted in the through holes. The bottom of the industrial plastic is provided with a cavity, the bottom of the cavity and the top of the industrial plastic are both provided with metal layers, and the plurality of PINs are conducted with the two metal layers. According to the utility model, a cavity radiation excitation feed structure is adopted, high gain can be maintained, and wider working frequency bandwidth can be obtained, so that the antenna can be adapted to more satellite positioning, and the weight is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning antenna technical field relates to the excitation feed positioning antenna based on cavity structure. BACKGROUND

[0002] At present, single frequency working antenna is made by the way of chemical plating, laser carving, electroplating or ceramic printing silver paint, and then through two layers of assembly, double frequency laminated positioning antenna is formed.

[0003] Current scheme pain points:

[0004] 1. Single frequency band, narrow bandwidth, cannot meet multi-satellite positioning.

[0005] 2. Product size limit, cannot be infinitely stacked to realize multi-frequency operation. INVENTION CONTENTS

[0006] In view of the technical problems in the prior art, the utility model provides an excitation feed positioning antenna based on cavity structure, which comprises industrial plastics and a plurality of PIN needles, a plurality of through holes are formed on the industrial plastics at intervals, the plurality of through holes and the plurality of PIN needles are one-to-one corresponding, the PIN needles are installed in the through holes, a cavity is formed on the bottom of the industrial plastics, the bottom of the cavity and the top of the industrial plastics are both provided with a metal layer, and the plurality of PIN needles are all in conduction with the two metal layers.

[0007] Further, the side surface of the industrial plastics is provided with a metal fence.

[0008] Further, a plurality of metal small holes are arranged around the through hole, and the two ends of the metal small hole are in conduction with the two metal layers respectively.

[0009] Further, the two ends of the metal small hole are fixedly connected with the two metal layers respectively.

[0010] Further, the PIN needle comprises four PIN needles.

[0011] Further, the metal layer is made by the way of chemical plating, laser carving and electroplating.

[0012] Beneficial effects:

[0013] 1. In the utility model, by forming the cavity structure on the bottom of the industrial plastics and the setting of the two metal layers, the antenna function characteristics can be realized by using the radiation excitation feed mode, high gain can be maintained, wider working frequency bandwidth can be obtained, more satellite positioning can be adapted, and the weight is also greatly reduced.

[0014] 2、The utility model discloses a metal fence is equipped on the side of industrial plastics, can widen frequency bandwidth to cover more satellite operating frequency.

[0015] 3、The utility model discloses a plurality of metal small holes are arranged, can increase the on -off rate, further widen frequency bandwidth, the both ends of metal small hole are fixedly connected with two metal layers respectively, can increase the structural strength between two metal layers, prevent separating and falling off between industrial plastics. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 It is the overall structure schematic diagram of bottom view angle of the utility model;

[0018] Figure 2 It is the overall structure schematic diagram of top view angle of the utility model.

[0019] Explanation of reference signs:

[0020] 1, industrial plastics; 2, PIN needle; 3, cavity; 4, metal layer; 5, metal fence; 6, metal small hole. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand 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 departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] Furthermore, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the technical features indicated. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0024] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0026] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0027] The utility model provides a cavity structure based on excitation feed positioning antenna, such as Figure 1 And Figure 2As shown, including industrial plastic 1 and a plurality of PIN needles 2, the industrial plastic 1 is a single layer structure, a plurality of through holes are arranged thereon, and the plurality of through holes correspond to the plurality of PIN needles 2 one by one, wherein the PIN needles 2 include four, and are symmetrically distributed about the center of the single layer industrial plastic 1, the PIN needles 2 are installed in the through holes, a cavity 3 is formed on the bottom of the industrial plastic 1, the bottom of the cavity 3 and the top of the industrial plastic 1 are both formed with a metal layer 4 by chemical plating, laser etching and electroplating, and the four PIN needles 2 are in conduction with the two metal layers 4.

[0028] In the embodiment, by forming the cavity 3 structure on the bottom of the industrial plastic 1 and arranging the two metal layers 4, the antenna function characteristics can be realized by using the radiation excitation feeding mode, high gain can be maintained, wider working frequency bandwidth can be obtained, more satellite positioning can be adapted, and the weight is greatly reduced.

[0029] In the utility model, preferably, as shown in Figure 1 and Figure 2 As shown, the side surface of the industrial plastic 1 is provided with a metal fence 5.

[0030] In the embodiment, by arranging the metal fence 5 on the side surface of the industrial plastic 1, the frequency bandwidth can be widened, so that more satellite working frequencies can be covered.

[0031] In the utility model, preferably, as shown in Figure 1 and Figure 2 As shown, a plurality of metal small holes 6 are arranged around the through hole, the two ends of the metal small hole 6 are in conduction with the two metal layers 4 respectively, and the two ends of the metal small hole 6 are fixedly connected with the two metal layers 4 respectively.

[0032] In the embodiment, by arranging the plurality of metal small holes 6, the conduction rate can be increased, and the frequency bandwidth can be further widened; in combination with the arrangement that the two ends of the metal small hole 6 are fixedly connected with the two metal layers 4 respectively, the structural strength between the two metal layers 4 can be increased, so that the two metal layers 4 are prevented from separating and falling off from the industrial plastic 1.

[0033] The technical features of the above-mentioned embodiments can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0034] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A cavity structure-based excited feed positioning antenna, comprising an industrial plastic (1) and a plurality of PIN needles (2), a plurality of through holes are provided on the industrial plastic (1) and spaced apart, the plurality of through holes correspond to the plurality of PIN needles (2) one by one, and the PIN needles (2) are installed in the through holes, characterized in that, The bottom of the industrial plastic (1) is provided with a cavity (3), the bottom of the cavity (3) and the top of the industrial plastic (1) are provided with metal layers (4), and a plurality of PIN pins (2) are in conduction with the two metal layers (4).

2. The cavity structure based excited feed position antenna according to claim 1, wherein, The side of the industrial plastic (1) is provided with a metal fence (5).

3. The cavity-based excited feed-positioned antenna of claim 2, wherein, A plurality of metal small holes (6) are arranged around the through hole, and the two ends of the metal small hole (6) are in conduction with the two metal layers (4) respectively.

4. The cavity-based excited feed-positioned antenna of claim 3, wherein, The two ends of the metal small hole (6) are fixedly connected with the two metal layers (4) respectively.

5. A cavity structure based excitation feed position antenna according to any one of claims 1 to 4, characterized in that, The PIN pin (2) comprises four.

6. The cavity-based excited feed-positioned antenna of Claim 5, wherein, The metal layer (4) is made by chemical plating, laser engraving or electroplating.

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