Millimeter-Wave Low-Loss Multifeed Superstrate-Based Antenna
- Publisher:
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Publication Type:
- Journal Article
- Citation:
- IEEE Transactions on Antennas and Propagation, 2020, 68, (5), pp. 3387-3396
- Issue Date:
- 2020-05-01
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Filename | Description | Size | |||
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08951443.pdf | Published version | 3.32 MB |
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© 1963-2012 IEEE. A low-loss multifeed antenna with controlled polarization and beam steering is presented. A low-profile resonant cavity antenna is fed by multiple spherical dielectric resonators (DRs), demonstrating its multifeed capabilities. Each of the DRs are themselves fed from four different sides by microstrip resonators on a planar circuit board. The beam pointing direction and polarization of the antenna are controlled by the signal phases at the respective input ports. Several antennas with varying feed topology are investigated, showing the versatility of this method. A 16-way 34 GHz prototype is built and measured, demonstrating high overall efficiency (considering power combining loss and antenna loss) of 80%.
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