Design and analysis of dual U slot reflectarray antenna for X-band applications

[摘要] A novel design of a dual frequency single layer reflectarray antenna is presented for X-band frequency applications. Dual U slots embedded on conventional rectangular microstrip reflectarray have been designed to attain a dual frequency operation. A detailed analysis of the effect on surface current distributions with the introduction of dual U slots is presented. Moreover a parametric study on the variation of significant dimensions of the design have been carried out and analysed thoroughly using a commercially available CST computer model. Proposed design configurations were fabricated above a 0.508 mm thick substrate of Rogers Duroid 5880. The dual U slot configuration offers a significant dual frequency behavior at 8.54 and 11.56 GHz with 10% bandwidth improvement of 47 and 56 MHz with a reflection loss of -4.54 and 4.11 dB respectively.

[发布机构] Universiti Tun Hussein Onn Malaysia (UTHM), Malaysia^1;Institute of Space Technology (IST), Islamabad, Pakistan^2

[效力级别] 无线电电子学

[关键词] Design and analysis;Design configurations;Dual frequency operation;Microstrip reflectarrays;Reflectarray antennas;Slot configuration;Surface current distributions;X-band frequencies