Journal of Systems Engineering and Electronics ›› 2026, Vol. 37 ›› Issue (3): 861-866.doi: 10.23919/JSEE.2026.000109

• ELECTRONICS TECHNOLOGY • Previous Articles     Next Articles

Dual-frequency aperiodic planar scanning array with diversified radiation elements

Hailing JIANG(), Ke DU()   

  • Received:2024-08-07 Accepted:2026-05-13 Online:2026-06-18 Published:2026-06-29
  • Contact: Hailing JIANG E-mail:cilen1109@163.com;296781574@qq.com

Abstract:

A dual-frequency aperiodic planar scanning array with diversified radiation elements is proposed. The proposed element consists of an elliptic patch and two parasitic rectangular patches, which can work both at 5.28?5.33 GHz with difference radiation beam and 5.78?5.83 GHz with sum radiation beam. A four equivalent magnetic currents model has been established to explain the radiation principle of the proposed element. Compared to the beamwidth of the sum beam, the 3 dB beamwidth of the difference beam is broadened about 30% and the radiation gain of the sum beam is obviously improved about 48%. A 64-element aperiodic array with diversified radiation elements is constructed. The array can scan at a wide angle of ±70° with no grating lobes at difference radiation mode and can scan in the range of ±60° with high gain at sum radiation mode.

Key words: aperiodic array, diversified radiation, high gain, wide beamwidth, magnetic current, wide-angle scan