A Novel Electromagnetic Transparent Antenna in Dual-Band Shared-Aperture Array

作者：Chu, Qing-Xin^*; Wu, Yue-Sheng; Chang, Yu-Lin

来源：IEEE Transactions on Antennas and Propagation, 2022, 70(10): 9894-9899.

DOI：10.1109/TAP.2022.3177470

• Antenna arrays
• Dipole antennas
• Electromagnetics
• Antenna radiation patterns
• Slot antennas
• Dual band
• Baluns
• Electromagnetic transparency
• impedance matching
• patch dipole
• slot

A novel electromagnetic transparent high-band (HB) antenna can be achieved by loading dumbbell-like slots, U-shaped slots, square-loop slots, and straight slots on the patch dipoles. The HB antenna operates in the band of 1.71-2.69 GHz (VSWR < 1.5), and the dipoles achieve low-scattering property in the band of 3.4-3.8 GHz. In the design, the impedance matching of HB antenna is very good even scattering suppression technique is applied on the dipoles. The loading of U-shaped slots introduces an additional resonance point, which can alleviate the impedance problem caused by the technique. Besides, a dual-band antenna array has been designed and fabricated for validation. Both simulated and measured results show that the HB antenna has a good performance on electromagnetic transparency.