The utility model discloses a
broadband omnidirectional ceiling antenna, and belongs to the field of antennas. The
broadband omnidirectional ceiling antenna provided by the utility model comprises a reflection bottom plate, an oscillator
assembly and a feed
assembly, the oscillator
assembly is installed above the reflection bottom plate, the oscillator assembly comprises a cup-shaped oscillator and a spectrum spreading sheet, the cup-shaped oscillator encloses an accommodating space with a top opening, and the spectrum spreading sheet is connected with the cup-shaped oscillator and is arranged at the opening position of the accommodating space; the feed assembly comprises a connecting seat, an insulating pad and a
coaxial cable, the connecting seat is fixed with the reflection bottom plate, the connecting seat is of a hollow structure, the
coaxial cable penetrates through a hollow area of the connecting seat to be connected with the cup-shaped vibrator, and the insulating pad is arranged on the periphery of the
coaxial cable in a sleeving mode and clamped between the cup-shaped vibrator and the connecting seat. According to the utility model, the oscillator is designed to be of a cup-shaped structure with an opening at the top, and the
spread spectrum sheet is arranged at the opening at the top of the oscillator to carry out
spread spectrum processing on signals, so that the oscillator can cover frequency bands of 698-806 MHz and 3700-4200 MHz, and
spread spectrum capacity expansion of indoor distributed communication network coverage is realized.