Omni-directional ceiling antenna

摘要

The present invention provides an omni-directional ceiling antenna, which comprises a cone column-shaped radiation oscillator, a cone column-shaped reflector, a plate column-shaped bottom plate and an insulation medium ring. The reflector comprises a first hollow cone and a first cylindrical ring, the flared end of the first hollow cone is connected with the first cylindrical ring, and the outer diameter of the first cylindrical ring is smaller than the outer diameter of the flared end of the first hollow cone. The bottom plate is provided with a second cylindrical ring, and the second cylindrical ring and the first cylindrical ring are connected in a sleeved mode to form a space isolating coupling structure. The insulation medium ring is arranged between the second cylindrical ring and the first cylindrical ring to separate the reflector from the bottom plate and support and fix the reflector and the bottom plate. The present invention solves the problem that high-frequency signals of an ultra-wideband indoor omni-directional antenna are gathered downward, expands the effective coverage of high-frequency band signals, enables indoor signals to be distributed more uniformly, effectively lowers the electromagnetic radiation intensity under the antenna and ensures the safety of the indoor electromagnetic environment.