Abstract
In this letter, we present a design of a linear array of tilted dipoles to achieve radiation patterns with asymmetric angular filtering characteristics. To realize the asymmetric radiation, the dipole elements are spaced by a distance larger than half a wavelength, thus allowing for grating lobes to occur in the visible region. Moreover, the dipoles are loaded with artificial dielectrics to increase the front-to-back ratio and consequently to enable higher gain in certain desired angular regions. Based on the design, a linear array with ten elements is manufactured and tested. The measured results show the ability of such an array to achieve stable gain from broadside up to 90° scanning while implementing a stopband angular filter for negative scanning angles.
Original language | English |
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Article number | 8985266 |
Pages (from-to) | 408-412 |
Number of pages | 5 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 19 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2020 |
Keywords
- Angular filtering
- Antenna arrays
- Pattern asymmetry
- Tilted dipole array
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