Bidirectional ceiling antenna used in distribution system in mobile communication network room

An indoor distribution system and mobile communication network technology, which is applied to antennas, antenna supports/installation devices, and structural forms of radiation elements, etc., can solve problems such as the cost of large indoor distribution system transformation, reduce the difficulty of property coordination, and reduce engineering transformation The effect of investment and efficiency improvement

Active Publication Date: 2014-04-02
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain a good internal signal, it is necessary to increase the signal source power or encrypt the antenna, which brings huge indoor distribution system transformation costs

Method used

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  • Bidirectional ceiling antenna used in distribution system in mobile communication network room
  • Bidirectional ceiling antenna used in distribution system in mobile communication network room
  • Bidirectional ceiling antenna used in distribution system in mobile communication network room

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] The present invention aims at the needs of room-divided linear and bi-directional area coverage and the defect that the existing omni-directional antenna radiates too much in the high-frequency band, and comprehensively considers the antenna gain and directivity of the high and low frequency bands, and designs a room-divided bi-directional coverage ceiling antenna, which improves The gain in the front and rear directions of the antenna, and the gain in the left and right sides are reduced. The most concerned radiation angle θ of the indoor ceiling antenna is between 60° and 85°, corresponding to the area with a coverage radius of 3.5m to 23m. θ = about 70°, the main radiation angle θ = about 85° (3dB attenuation).

[0048] The invention provides a two-way ceiling antenna used in an indoor distribution system of a mobile communication network, figure...

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PUM

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Abstract

The invention relates to a bidirectional ceiling antenna used in a distribution system in a mobile communication network room, comprising a metal girdle, a ball-circular truncated cone oscillator and a binding post. The metal girdle is connected with an outer conductor at one end of the binding post, the circular truncated cone top of the ball-circular truncated cone oscillator is connected with an inner conductor at one end of the binding post; the axis of the binding post, the symmetry axis of the ball-circular truncated cone oscillator and one diameter of the metal girdle are arranged on the same straight line; and the other end of the binding post is connected with a coaxial cable. The bidirectional ceiling antenna provided by the invention can acquire the signal enhancement of 3dB at a low-band segment and the signal enhancement of 6-10 dB at a high-band segment in a linear and bidirectional coverage area as comparison with a traditional universal ceiling antenna.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a two-way ceiling antenna used in an indoor distribution system of a mobile communication network. Background technique [0002] The good indoor signal of 3G mobile communication network is more and more important, and the indoor distribution system has attracted extensive attention. In many indoor coverage scenarios, such as hotels, office buildings, tunnels, subways, promenades and other places, the target coverage area is linear or bidirectional. At present, omnidirectional ceiling antennas are generally installed on the ceiling and other indoor tops for coverage, and there is no suitable antenna yet. for targeted coverage. The existing omnidirectional ceiling antenna technical specification requirements include: the operating frequency range is 806-960MHz and 1710-2500MHz, the voltage standing wave ratio (VSWR)<1.5, the gain is 2dBi in the low frequency band, and 5dBi ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/12H01Q1/36H01Q13/08
Inventor 黄晓明买彦州傅强陈旭东彭中峰邓安民葛慧明
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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