Telefonaktiebolaget Lm Ericsson (publ)

Juandi Song

Ying Li

Yuhua Xiao

Lei Sun

Xueyuan Zhang

Junming Li

Jianlan Li

Yongbin Liu

Ningmin Liu

A dielectric filter with a first radio frequency (RF) passband and a second RF passband, a radio unit, an antenna unit and a base station are disclosed. According to an embodiment, the dielectric filter () comprises a body () with a plurality of resonators () including a first resonator (), a second resonator () and a common resonator (). The common resonator () is coupled under its first resonance mode to the first resonator () to provide the first RF passband, and is coupled under its second resonance mode to the second resonator () to provide the second RF passband.

Dielectric filter, and AU, RU or BS having the same

An antenna unit, a radio unit, and a base station are disclosed. The antenna unit or the radio unit includes a plurality of filters, each having a respective radio frequency passband. At least one first filter is a CWG filter. The first filter is coupled to a second filter through a T-junction formed on an antenna board or a radio mother board.

AU and RU having CWG filters, and BS having the AU or RU

Embodiments of the disclosure provide an antenna filter unit and a radio unit. The antenna filter unit includes a radiation unit and a cavity filter coupled to the radiation unit. The radiation unit is arranged on an outer side of a wall of a cavity of the cavity filter. At least a part of the wall is also arranged as a reflection plate for the radiation unit. The radio unit includes the above-mentioned antenna filter unit and a radio circuit board. According to the antenna filter unit and the radio unit provided by embodiments of the disclosure, the number and volume of elements in a radio system are reduced, the degree of integration can be improved, the weight and installation space are reduced, and the costs are reduced.

Antenna filter unit, and radio unit

Growing community of inventors

Beijing, China

Juandi Song