A compact multi-beam antenna without beam forming network

Publisher:
IEEE
Publication Type:
Conference Proceeding
Citation:
ISAP 2016 - International Symposium on Antennas and Propagation, 2017, pp. 404 - 405
Issue Date:
2017-01-17
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© 2016 IEICE. A novel approach to design a multi-beam array antenna without a beam forming network (BFN) is presented. The proposed antenna consists of 3×3 microstrip patches that are tightly coupled through microstrip lines. By exciting any one of these patches, the energy can be coupled to all the patches. Nine beams towards different directions are obtained by selecting different feeding ports. The resultant gain varies from 10 dBi to 11 dBi. The scanning ranges of the beams are ±24° and ±45° in the elevation and horizontal directions, respectively. The proposed antenna has a single-layered structure without complex feeding network, which significantly lowers its cost.
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