Abstract
A broadband wide-angle scanning array antenn a with suppressed mutual coupling for fifth-generation (5G) sub-6G mobile communication applications is presented in this letter. The metal columns are positioned below the edge of the dipole, leading to the improved the impedance matching characteristics, the suppressed mutual coupling and a wider scanning angle. A 1×8 prototype of the suggested design has been manufactured and tested to ensure its usefulness. The overall dimension is 2.33 λ0×0.28 λ0×0.24 λ0 (λ0 is the free-space wavelength at 2.5 GHz). The measured and simulated results are quite consistent. The main lobe achieves a scanning range of ±60° at 2.5-4.5 GHz (57.1%) and yields a scanning range of ±75° at 3-4 GHz (28.6%) with a gain loss of less than 2.5 dB. The sidelobe levels are mostly less than or equal to -7.9 dB and the isolation between the antenna elements can yield a maximal additional 14.7 dB enhancement.
| Original language | English |
|---|---|
| Pages (from-to) | 366-370 |
| Number of pages | 5 |
| Journal | IEEE Antennas and Wireless Propagation Letters |
| Volume | 21 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Feb 2022 |
Keywords
- dipole antenna
- mobile communication
- suppressed mutual coupling
- wide beam
- wide scanning range