Dual polarised planar antenna, base station and method of manufacture
OwnerStephen John Boyes, Matthew Robinsoninventors
Life of this patent
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Abstract
A dual polarised planar antenna (10) comprising first (12) and second (13) antenna elements having respective orthogonal polarisations, the antenna elements (12, 13) being arranged in a back-to-back configuration and fed directly by respective first and second antenna feeds (15), wherein the dual polarised planar antenna (10) further comprises a parasitic element (14) arranged between the antenna elements (12, 13) such that in-use the antenna feeds (15) are decoupled. Particularly suited to low profile antennas and compact antenna base stations. Also relates to a method of manufacture.
Claims21
A dual polarised planar antenna comprising first and second antenna elements having respective orthogonal polarisations, the antenna elements being arranged in a back-to-back configuration and fed directly by respective first and second antenna feeds, wherein the dual polarised planar antenna further comprises a parasitic element arranged between the antenna elements, such that in-use the antenna feeds are decoupled.
Use of a parasitic element to decouple antenna feeds of respective back-to-back antenna elements having orthogonal linear polarisations.
A method of manufacturing a dual polarised planar antenna, comprising the steps of:
- a) Arranging first and second antenna elements having orthogonal linear polarisations in a back-to-back configuration;
- b) Providing respective first and second antenna feeds as direct feeds to the antenna elements;
- and then
- c) Arranging a parasitic element between the antenna elements;
- such that in-use the antenna feeds are decoupled.
Dependencies are inferred from the claim text.