GNSS (Global Navigation Satellite System) high-precision measuring antenna

A high-precision antenna technology, applied in the field of mobile communication, can solve the problems of weak low-elevation signal receiving ability, narrow working frequency band of receiving antenna, and large influence of multipath interference, so as to improve phase radiation characteristics, widen working frequency band, and improve reception effect of ability

Active Publication Date: 2013-09-04
HUNAN AEROSPACE HUNAYU COMM TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a GNSS high-precision measurement antenna to solve the technical problems of the existing receiving an

Method used

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  • GNSS (Global Navigation Satellite System) high-precision measuring antenna

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Embodiment Construction

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0032] refer to figure 1 , the preferred embodiment of the present invention provides a GNSS high-precision measurement antenna, including: a reflection cavity 10 and a choke coil 20 distributed on the periphery of the reflection cavity 10; four center-symmetric feed oscillators 1 are arranged in the reflection cavity 10 , the tops of the two opposite feeding vibrators 1 among the four feeding vibrators 1 are connected through the connecting piece 3; A microstrip circuit 31 is provided in the strip feed cavity 30 , and the feed vibrator 1 is electrically connected to the microstrip circuit 31 in the microstrip feed cavity 30 located below the reflection cavity 10 via the inner conductor 4 . In this way, the signal transmitted by the electromagnetic...

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Abstract

The invention discloses a GNSS (Global Navigation Satellite System) high-precision measuring antenna, which comprises a reflecting cavity and a choke coil distributed on the periphery of the reflecting cavity; four centrosymmetrical feed oscillators are arranged in the reflecting cavity, and the necks of each two opposite feed oscillators are connected through a connecting plate; a microstrip feed cavity is arranged under the reflecting cavity, a microstrip circuit is arranged in the microstrip feed cavity, and the feed oscillators are electrically connected with the microstrip circuit in the microstrip feed cavity located under the reflecting cavity through internal conductors. Since the microstrip circuit is arranged in the microstrip feed cavity located under the reflecting cavity and the feed oscillators located in the reflecting cavity are electrically connected with the microstrip circuit located in the microstrip feed cavity through the internal conductors, electromagnetic interference is effectively reduced, and thereby the purity of feed signals is increased; moreover, since the GNSS high-precision measuring antenna adopts a broadband radiating unit composed of the four centrosymmetrical feed oscillators, a plurality of navigation satellite signals within a frequency band from 1.1GHz to 1.6GHz are fully covered, and thereby the operating frequency band of the receiving antenna is broadened.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a GNSS high-precision measurement antenna. Background technique [0002] Based on the characteristics of full-time, all-weather, high-precision, continuous and real-time navigation, positioning and timing based on satellite navigation, satellite navigation has been widely used in various fields such as navigation, surveying and mapping, monitoring, timing, and communication. Scientific research, disaster prevention and control, and military fields play an increasingly important role. [0003] Satellite navigation represented by GPS (Global Positioning System) of the United States has entered the era of GNSS (Global Navigation Satellite System) with the Beidou navigation system of my country, Galileo of Europe and GLONASS system of Russia put into use, forming the GPS , Galileo, GLONASS, and BD multiple systems coexist. According to the GNSS positioning principle and its satel...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/50H01Q1/52H01Q19/17
Inventor 李治斌李完小彭国勋马花莉黄佐军
Owner HUNAN AEROSPACE HUNAYU COMM TECH CO LTD
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