Beam scanning array antenna

An array antenna and beam scanning technology, applied in the field of beam scanning array antennas, can solve the problems of increasing the difficulty and cost of antenna processing, affecting the performance of the antenna, beam scanning, and complexity of the antenna, achieving stable antenna beam scanning function, reducing processing costs, The effect of simplifying the antenna structure
CN102013559AInactive Publication Date: 2011-04-13XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2011-04-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a beam scanning array antenna mainly solving the problems that a traditional passive beam scanning antenna has complicated structure and high loading and processing cost caused by using reactive elements. The whole antenna comprises a microstrip isopower distribution feed network (12), a vibrator unit (15), a feed microstrip extension line (16) and a diode switch control circuit (14), wherein the microstrip isopower distribution feed network (12) is in a cross structure, a feed point is arranged in a cross point through a vertical probe (18) to realize isopower distribution feed, the antenna vibrator unit (15) is fixed at one end of each feed microstrip line, and the feed microstrip extension line (16) is connected with the diode switch control circuit (14) and controls the connection and disconnection between the feed microstrip extension line and a floor at the back of a medium plate (10) to realize wide beam scanning in four different directions. The invention has the advantages of simple structure, low processing cost and easily realized beam scanning function and can be applied to a mobile terminal in a wireless communication system.
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Description

technical field

[0001] The invention belongs to the technical field of antennas, in particular to a beam scanning array antenna, which can be applied to mobile terminals of wireless communication systems. Background technique

[0002] With the hot research on smart antennas at home and abroad in recent years, most of the researches are carried out on smart antennas for base stations. Because the smart antenna used in the base station is installed on the base station of mobile communication, its size is relatively small, so some mechanical parameters of the antenna, such as the number of array elements, array arrangement, array element spacing and array element size, etc. Designing within a looser range makes it easier for the antenna to achieve the desired performance. The design of smart antennas for mobile terminals is relatively very difficult. For example, the portability of some mobile terminals limits its size, which also limits many mechanical parameters of the anten...

Claims

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