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Title:
DUAL-BAND POLARISER
Document Type and Number:
WIPO Patent Application WO/2019/206306
Kind Code:
A1
Abstract:
Apparatus for dual-band antenna and communications tower comprising such apparatus are provided. The apparatus comprises a first part (202) comprising first and second propagation paths configured to selectively propagate signals of a first frequency with either a first polarization state or a second polarization state, a transition part (204) rotatable between first and second transition positions to selectively propagate signals of a second frequency along the second signal path with the first polarisation state when in the first transition position and with the second polarisation state when in the second transition position and a rotator part rotatable between first and second rotator positions. Wherein, the rotator part is configured to orientate the polarisation of signals in the second signal path in order to couple the second signal path to an interface, and allow propagation of signals in the first signal path in either the first or second rotator positions.

Inventors:
TESSIER, Julien (5 Avenue De La Liberte Saint-Herblain, 44800, FR)
PROT, Guillaume (9 Bis Route Du Radeau, La Baule, 44500, FR)
TUAU, Denis (10 Rue Jacques Brel, Trignac, 44570, FR)
Application Number:
CN2019/084679
Publication Date:
October 31, 2019
Filing Date:
April 26, 2019
Export Citation:
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Assignee:
NOKIA SHANGHAI BELL CO., LTD. (388 Ning Qiao Road, China Pilot Free Trade Zone, Shanghai 6, 201206, CN)
International Classes:
H01Q15/24; H01Q21/24
Domestic Patent References:
WO2018057824A12018-03-29
WO1999010950A21999-03-04
Foreign References:
CN105896088A2016-08-24
CN105206936A2015-12-30
EP0812029A11997-12-10
Attorney, Agent or Firm:
BEIJING QIKUN INTELLECTUAL PROPERTY AGENCY LTD. (Building A-1105, Xing Fu Building No.3 Dong San Huan Bei Road, Chaoyang District, Beijing 7, 100027, CN)
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