China United Network Communications Group Company Limited

China United Networks Communications Group Company Limited

Thomson Licensing

Xiaoming Huang

Qiang Fu

Wei Li

Jun Yan

Zhibo Chen

Anmin Deng

Huiming Ge

Junbin Mo

Xudong Chen

Jianquan Wang

Libo Yang

Biao He

Yanzhou Mai

Zhongfeng Peng

Yuchen Shi

Qingyu Cai

Xinliang Liu

Guixin Pan

Xinming Chen

A method for combining with a minimum isolation bandwidth includes: determining an insertion loss and an isolation between ports of a combiner; calculating a total isolation bandwidth of an isolation band in the combiner according to the insertion loss and the isolation between ports; determining guard bandwidths adjacent to the isolation band in combined systems, the combined systems being at least two communication systems combined by the combiner; and, calculating an actual isolation bandwidth of the combiner according to the guard bandwidths of the combined systems and the total isolation bandwidth.

Method and device for setting an isolation bandwidth of a combiner

The present invention provides an omni-directional ceiling antenna, including: a cone cylinder-shaped radiation oscillator, a cone cylinder-shaped reflector, a disc cylinder-shaped base plate, and a dielectric ring; where the reflector includes a first hollow cone and a first cylindrical ring, a flared end of the first hollow cone is connected to the first cylindrical ring, and an outer diameter of the first cylindrical ring is smaller than that of the flared end of the first hollow cone; a second cylindrical ring is provided on the base plate, and the second cylindrical ring sockets to the first cylindrical ring to form a spatially separated coupling structure; the dielectric ring is provided between the second cylindrical ring and the first cylindrical ring so as to realize separation and fixed support between the reflector and the base plate.

Omni-directional ceiling antenna

A ceiling-mount omni-directional antenna for indoor distribution system of mobile communication network and a method for manufacturing the same are provided. The antenna includes: a monopole consisting of a cone part and a columnar part, and a reflecting plate consisting of a cone part and a platform part, and a feed connector. The monopole and the reflecting plate are arranged in such that the tips of cone parts are opposite to each other. The signal is fed into the antenna through the feed connector and radiated outward by the monopole and the reflecting plate. In high frequency band, the maximal gain appears at about 70&#xb0;, so that the signal power focuses at radiating angles of 60&#xb0;-85&#xb0;. The gain of the antenna increases 4.22 dB at a radiating angle of 85&#xb0; and decreases IOdB at a radiating angle of 30&#xb0;.

Indoor ceiling-mount omnidirectional antenna and a method for manufacturing the same

Growing community of inventors

Beijing, China

Xiaoming Huang