Multi-beam dielectric lens antenna and manufacturing method
A dielectric lens antenna, dielectric lens technology, applied in the direction of antenna, antenna grounding switch structure connection, antenna suitable for movable objects, etc., can solve the problems of poor beam scanning range, high power consumption, etc., and achieve large coverage , the effect of reducing costs and reducing energy consumption
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Embodiment 1
[0034] For a multi-beam dielectric lens antenna provided in Embodiment 1 of the present invention, please refer to figure 2 and image 3 As shown, it includes a base 4 and a dielectric shell 6 connected to the bottom of the base. The surface of the base is metal, which can play the role of reflecting waves.
[0035] The dielectric housing 6 is provided with a microstrip radiation unit array 21 and a dielectric lens 5 installed at the bottom of the base 4. The microstrip radiation unit array is distributed around the dielectric lens. Preferably, the microstrip radiation unit is evenly distributed along the circumferential direction.
[0036] A dielectric lens is a three-dimensional structure that can pass electromagnetic waves and whose refractive index is not equal to 1. The spherical wave or cylindrical wave emitted by the point source or line source can be converted into a plane wave through the lens, so as to obtain a pencil-shaped or fan-shaped beam. The refractive inde...
Embodiment 2
[0062] The multi-beam dielectric lens antenna provided by Embodiment 2 of the present invention is basically the same as Embodiment 1. Please refer to figure 2 and image 3 As shown, it includes a base 4 and a dielectric housing 6 connected to the bottom of the base 4, and the surface of the base is metal.
[0063] A microstrip radiating element array 21 and a dielectric lens 5 installed on the bottom of the base 4 are arranged inside the dielectric housing 6 , and the microstrip radiating element array is distributed around the dielectric lens.
[0064] The dielectric lens is at least one of the following structures: cylindrical structure, hemispherical structure, cylindrical and hemispherical combined structure. The difference is that the second embodiment adopts the dielectric lens 5 as a hemispherical structure; the lens antenna has the following advantages: the side lobe and the back lobe are small, so the pattern is better. The role of the dielectric lens is to form a...
Embodiment 3
[0080] Such as Figure 2~3 The structure of the microwave circuit used in Embodiment 3, wherein the modulation and demodulation, the microwave amplification circuit and each radiation unit of the antenna are connected by an electronically controlled phase shifter, and the phase difference of the radiation signal of each radiation unit is controlled by the wave controller Implement beam scanning. Due to the sharpening effect of the dielectric lens on the beam, the power consumption is reduced and the number of radiation units can also be reduced compared with that without the dielectric lens. However, compared with the phased array technology, the solution using the beam selection switch (embodiments 1-2) further reduces power consumption and cost.
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Abstract
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