Base Station Directional Antenna
A directional antenna, base station antenna technology, applied in the field of communication, can solve the problem of not being able to meet the anti-interference and enhanced coverage at the same time, and achieve the effect of increasing the anti-interference ability of the same frequency, improving the field strength, and strengthening the directivity of the antenna.
Active Publication Date: 2015-07-29
KUANG CHI INST OF ADVANCED TECH +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a method for deflecting electromagnetic waves at any angle by using metamaterials to realize electromagnetic wave Base station directional antenna for directional propagation
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The horizontal and vertical radiation patterns of base station directional antennas are non-uniform, and they are often used in sectorized cells, so they are also often called sector antennas, and their radiated power is more or less concentrated in one direction. On the horizontal pattern, it is manifested as fan radiation at a certain angle, which is commonly referred to as directional; on the vertical pattern, it is manifested as a beam with a certain width. Directional Antennas Directional antennas are used in cellular systems for two reasons: coverage extension and frequency reuse. Interference in cellular mobile networks can be improved by using directional antennas. In the mobile communication system, the directional antenna is generally used in the station type of urban cell system, with small coverage, high user density and high frequency utilization.
[0023] Metamaterial is a kind of artificial composite structural material with extraordinary physical proper...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A base station directional antenna comprises a base station antenna and an electromagnetic deflection element. The electromagnetic deflection element is arranged at the front of an electromagnetic transmitting device of the base station and consists of at least one metamaterial sheet layer, each sheet layer comprises a sheet-shaped base material and a plurality of artificial microstructures attached onto the base material, each artificial microstructure comprises silk threads forming a geometric pattern, the refractive index of the electromagnetic deflection element is gradually reduced along at least one first direction, and the refractive index of the electromagnetic deflection element along an optional one of a second direction perpendicular to the first direction and a third direction perpendicular to the first direction and the second direction is unchanged or is also gradually reduced. Electromagnetic waves are deflected by a certain angle after passing through the electromagnetic deflection element and then are transmitted, accordingly, the base station directional antenna is beneficial for limiting signals within a self coverage range, and interference of other regions with the same frequency can be reduced. Besides, the directivity of the antenna strengthens the intensity of the signals within the coverage area.
Description
technical field [0001] The present invention relates to the communication field, and more specifically, relates to a base station directional antenna. Background technique [0002] The base station is mainly used in a certain radio coverage area, through the mobile communication switching center, and the radio transceiver station for information transmission between mobile phone terminals. The base station antenna is like the tentacles of the entire mobile communication system, and plays a pivotal role in the communication process. The key points when choosing a base station antenna are directivity and downtilt. The downtilt angle refers to the downtilt angle of the directional antenna, which is mainly used to control interference and enhance coverage. [0003] In the prior art, there are two ways to tilt the antenna pattern downward: one is mechanical downtilt, which changes the antenna downtilt angle through mechanical adjustment; the other is electric downtilt, which is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/06H01Q15/02
Inventor 刘若鹏徐冠雄
Owner KUANG CHI INST OF ADVANCED TECH