Telefonaktiebolaget Lm Ericsson (publ)

Jianlan Li

Ying Li

Liang Wang

Rui Ma

Haitao Liu

Lei Sun

Junming Li

Xuejun Sun

Xueyuan Zhang

Ningmin Liu

Juandi Song

Yongbin Liu

Xinfeng Zhang

Mengyang Jia

Zhiming Tian

Yuesong Wang

The present disclosure provides a base station. It includes a radio board; at least one primary radiator disposed on the radio board; a multi-function block configured to protect and at least partly enclose the at least one primary radiator and the radio board; and at least one secondary radiator, located above the at least one primary radiator. At least a part of the multi-function block is located between the at least one primary radiator and the at least one secondary radiator.

Base station

A phase shifting device, an antenna unit and abase station are disclosed. According to an embodiment, the phase shifting device comprises a power divider and a phase shifter. The power divider comprises an input inlet for an input signal, a first output outlet connected with an impedance member having a system impedance, and a second output outlet connected with the phase shifter. The phase shifter comprises a first plate and a second plate slidable relative to the first plate. Two parallel microstrip lines are provided on a first surface of the first plate. An adjusting member is provided on a second surface of the second plate that faces to the first surface of the first plate. The adjusting member is configured to adjust a length of a total signal transmission path that is from one to the other of the two parallel microstrip lines via an intermediate signal transmission path introduced by the adjusting member, or to prohibit the input signal from transmitting to the second output outlet, according to a position of the second plate relative to the first plate when the second plate slides relative to the first plate.

Phase shifting device with slidable plate for signal transmission path length adjustment, usable in an antenna unit or base station

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

A ceramic waveguide filter, a radio unit, an antenna unit and a base station are disclosed. According to an embodiment, a ceramic waveguide filter comprises a body () that is made of a ceramic material and that has a plurality of resonators each including a blind hole (). The blind holes () of two of the resonators open at a first surface of the body () and extend toward an opposite second surface of the body (). Capacitive coupling between the two resonators is achieved by a coupling structure () on/in a substrate (), to which the body () is attached at the side of the second surface.

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

Growing community of inventors

Beijing, China

Jianlan Li