Multisystem covolume antenna

Abstract

The invention discloses a multi-system community antenna, comprising a main antenna array which at least comprises two antenna array elements for sending and receiving communication signals at a first frequency band together, and the antenna array element is composed of at least two radiating units; at least a secondary antenna array which at least comprises one antenna array element for sending and receiving independent frequency bands different from the first frequency band, and the antenna array element is composed of at least two radiating units; and a shared reflecting plate for arranging the main antenna array and the secondary antenna array and being used as a shared reflector of the main antenna array and the secondary antenna array; in each antenna array element of the main antenna array and unequal phase distribution feeding is carried out between the radiating units. The multi-system community antenna realizes effective integration of the traditional base-station antennas and the TD-SCDMA intelligent antennas; in addition, the compaction of the antenna is realized on the premise of ensuring performance index, thus ensuring the safety and practicability of the community antenna.

Description

【Technical field】 [0001] The invention relates to the field of wireless mobile communication antennas, in particular to a multi-system integrated antenna compatible with traditional base station antennas and smart antennas. 【Background technique】 [0002] In today's highly developed wireless mobile communication, as the transceiver device of the communication system, the traditional base station antenna has achieved great development, and has been continuously improved and improved. [0003] At present, traditional base station antennas generally have two polarization modes: single-polarization and dual-polarization, and their forms include simple vertical polarized linear array, simple ±45° dual-polarized linear array, dual-frequency shared form, and multi-frequency shared form. , narrow beam antenna form and multiple-input multiple-output antenna form, etc. [0004] Traditional base station antenna systems generally include at least one antenna element and a feed network,...

AI Technical Summary

Problems solved by technology

This brings about three problems: first, the cross-sectional area of ​​the antenna is too large, the wind load is large, the safety performance is reduced under strong storms, and the construction difficulty is increased when the installation is fixed; second, the current existing pole support Insufficient strength leads to poor practicability, and re-planning the pole will increase the cost, which is not recognized by operators; third, due to the large area of ​​the antenna, the visibility is not good, and it is not harmonious with the urban landscape. The public mistakenly believes that the radiation is large and resists the installation, resulting in Antenna site selection is more difficult

[0009] With the upcoming large-scale construction of the TD-SCDMA network, in order to optimize resource allocation, the market urgently needs a new type of antenna system, which can integrate the application functions of smart antennas and traditional base station antennas, realize the integration of the two antenna systems, and reduce the Reduce the difficulty of network planning and reduce costs; at the same time, it is necessary to reduce the size of TD-SCDMA smart antennas to the same extent as traditional base station antennas to improve its security performance and be easily accepted by operators and the public, but simple size reduction will make smart antennas Electrical indicators, such as isolation, become unacceptable and cannot meet the needs of TD-SCDMA systems

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