The paper presents itself with dipole antennas for base station application, featuring their dual polarization, low correlation between co-located radiators, and low cross-polarization levels. The proposed antenna has crossed dipoles which established orthogonality for initiating dual polarization in it. Each dipole is fed directly using individual co-axial lines. The radiators engraved on both sides of the substrate are made to cover frequency bands from 1.7 to 2.7 GHz. The devised antenna reported a frequency bandwidth of 1.58:1 with a reflection coefficient of − 25 dB throughout the band of operation. The port-to-port correlation reported is better than − 35 dB. Using the microstrip stub feeding technique, the cross (x)-polarization level is brought well below − 30 dB. Moreover, the proposed radiator achieves a stable pattern with 7 dBi peak gain within the operating band and a Half-Power-Beamwidth (HPBW) of 70°. The measurement results of the devised antenna matched well with the simulation results, hence forth presenting themselves to be a candidate for facilitating base station applications.

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A Crossed Dipole Wide-Band Antenna for Base Station Applications

  • M. Shalini,
  • R. K. Rabin Kanisha,
  • M. Ganesh Madhan,
  • C. Rimmya,
  • S. Piramasubramanian

摘要

The paper presents itself with dipole antennas for base station application, featuring their dual polarization, low correlation between co-located radiators, and low cross-polarization levels. The proposed antenna has crossed dipoles which established orthogonality for initiating dual polarization in it. Each dipole is fed directly using individual co-axial lines. The radiators engraved on both sides of the substrate are made to cover frequency bands from 1.7 to 2.7 GHz. The devised antenna reported a frequency bandwidth of 1.58:1 with a reflection coefficient of − 25 dB throughout the band of operation. The port-to-port correlation reported is better than − 35 dB. Using the microstrip stub feeding technique, the cross (x)-polarization level is brought well below − 30 dB. Moreover, the proposed radiator achieves a stable pattern with 7 dBi peak gain within the operating band and a Half-Power-Beamwidth (HPBW) of 70°. The measurement results of the devised antenna matched well with the simulation results, hence forth presenting themselves to be a candidate for facilitating base station applications.