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Metal Resistant High Gain Circularly Polarized Satellite Receiving Antenna

A satellite receiving and high-gain technology, which is applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of reducing antenna radiation efficiency, high process precision requirements, and deterioration of circular polarization performance, so as to ensure circular polarization Chemical performance, simple process, and guaranteed anti-metal properties

Active Publication Date: 2021-01-19
成都电科星天科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The first method will reduce the radiation efficiency of the antenna, the second method is very difficult to design and requires high process precision, and the third microstrip antenna has the characteristics of simple structure and low profile, making it the main direction of research on anti-metal antennas , but most of the existing ceramic circularly polarized antennas are cut-off patches, and when they work on large metal reflectors, the circular polarization performance will be greatly deteriorated

Method used

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  • Metal Resistant High Gain Circularly Polarized Satellite Receiving Antenna
  • Metal Resistant High Gain Circularly Polarized Satellite Receiving Antenna
  • Metal Resistant High Gain Circularly Polarized Satellite Receiving Antenna

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Embodiment Construction

[0021] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0022] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0023] Such as figure 1 As shown, the metal-resistant high-gain circularly polarized satellite receiving antenna includes two dielectric substrates, a radiation patch 1 and a probe 4, the lower surface of the lower dielectric substrate 5 is provided with a feed network 6, and the upper surface is provided with a metal floor 3; the size of the metal floor 3 is smaller than the size of the upper dielectric substrate 2; the radiation patch 1 covers the entire top and side surfaces of the upper dielectri...

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Abstract

The invention discloses a metal-resistant high-gain circularly-polarized satellite receiving antenna, and the antenna comprises two dielectric substrates, a radiation patch, and at least four probes.The lower surface of the lower dielectric substrate is provided with a feed network, and the upper surface is provided with a metal floor. The size of the metal floor is less than the size of the upper dielectric substrate. The radiation patch covers the whole top surface and side surfaces of the upper dielectric substrate. At least four probes pass through the two dielectric substrates and the metal floor, and are distributed in rotational symmetry. The radiation patch achieves the feed through a feed network via at least four probes. Through reducing the size of the antenna floor, increasingthe side surface from the radiation patch to the dielectric substrates and maximizing the usable radiation aperture of the antenna, the antenna improves the high-gain performance, employs a multi-point feed method, and guarantees that the antenna still can guarantee the circularly polarized performances when the antenna works on a big metal reflection surface (a car roof).

Description

technical field [0001] The invention relates to a satellite receiving antenna, in particular to a metal-resistant high-gain circularly polarized satellite receiving antenna. Background technique [0002] With the development and popularization of satellite communication, people's daily life is increasingly dependent on satellite communication. This requires that the satellite communication system can be better integrated with people's daily life, and have good enough adaptability to meet people's every-time demand for satellite communication. [0003] In order for the satellite communication system to have better adaptability, the satellite receiving antenna needs to basically maintain the original performance in various special environments, such as when it works on a large metal reflector. However, when ordinary single-feed or double-feed circularly polarized antennas work directly on a large metal surface, they will be affected by the metal boundary, and their performanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/38H01Q1/48H01Q19/10
CPCH01Q1/38H01Q1/48H01Q1/50H01Q19/104
Inventor 孙凯汤悦刘思豪杨德强陈波
Owner 成都电科星天科技有限公司
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