Multi-band antenna and mobile communication base station with modular design
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMaximilian Göttl, Florian Leinenbach, Thomas Ettstaller, Christoph Staita
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Abstract
A multi-band antenna has first radiators, second radiators, a frame and at least one insert. The frame comprises a frame reflector surface, the first radiators are mounted to the frame, and the frame defines at least one window for receiving the at least one insert. The insert comprises a base having an insert reflector surface, the second radiators are mounted to the insert, and the base is located in the at least one window. The frame reflector surface and the insert reflector surface together form a common reflector for the first radiators. Further, a mobile communication base station is shown.
Claims13
A multi-band antenna, in particular for a mobile communication base station, comprising first radiators for a first frequency band, second radiators for a second frequency band, a frame and at least one insert,
- wherein the frame comprises a frame reflector surface, the first radiators are mounted to the frame, and the frame defines at least one window for receiving the at least one insert,
- wherein the at least one insert comprises a base having an insert reflector surface, the second radiators are mounted to the at least one insert, and the base is located in the at least one window,
- wherein the frame reflector surface and the insert reflector surface together form a common reflector for the first radiators,
- characterized in that the frame comprises two parallel stringers extending in a longitudinal direction (L), wherein the at least one window is located between the stringers,
- characterized in that the frame comprises at least two bridges connecting the stringers in a transverse direction (T), wherein the at least one window is surrounded by the stringers and adjacent ones of the at least two bridges,
- characterized in that the frame, in particular the stringers and/or the at least two bridges, comprises a top plate having the frame reflector surface and at least one side wall bordering the window, wherein the at least one side wall is galvanically connected with the top plate, and wherein the base of the at least one insert is coupled capacitively with the at least one side wall,
- characterized in that the frame comprises a bottom plate, wherein the bottom plate is fixed to the at least one side wall and to the top plate, in particular wherein the bottom plate and the top plate are electrically insulated from one another at the connection of the top plate and bottom plate, and
- characterized in that the at least one insert comprises a support plate, wherein the base is fixed to the support plate, and wherein the at least one insert is fixed to the frame by the support plate, in particular wherein the support plate is fixed to the bottom plate.
A mobile communication base station comprising:
- a multi-band antenna comprising first radiators for a first frequency band, second radiators for a second frequency band, a frame and at least one insert,
- wherein the frame comprises a frame reflector surface, the first radiators are mounted to the frame, and the frame defines at least one window for receiving the at least one insert,
- wherein the at least one insert comprises a base having an insert reflector surface, the second radiators are mounted to the at least one insert, and the base is located in the at least one window,
- wherein the frame reflector surface and the insert reflector surface together form a common reflector for the first radiators,
- characterized in that the frame comprises two parallel stringers extending in a longitudinal direction (L), wherein the at least one window is located between the stringers,
- characterized in that the frame comprises at least two bridges connecting the stringers in a transverse direction (T), wherein the at least one window is surrounded by the stringers and adjacent ones of the at least two bridges,
- characterized in that the frame, in particular the stringers and/or the at least two bridges, comprises a top plate having the frame reflector surface and at least one side wall bordering the window, wherein the at least one side wall is galvanically connected with the top plate, and wherein the base of the at least one insert is coupled capacitively with the at least one side wall,
- characterized in that the frame comprises a bottom plate, wherein the bottom plate is fixed to the at least one side wall and to the top plate, in particular wherein the bottom plate and the top plate are electrically insulated from one another at the connection of the top plate and bottom plate, and
- characterized in that the at least one insert comprises a support plate, wherein the base is fixed to the support plate, and wherein the at least one insert is fixed to the frame by the support plate, in particular wherein the support plate is fixed to the bottom plate, and
- an amplifier for the first radiators separate from the multi-band antenna.
Dependencies are inferred from the claim text.