A New Design of an S/X Dual Band Circular Slot Antenna for Radar Applications

Abstract

A novel design of dual-band slot antenna with a circular patch for radar applications is presented and studied. It is fed by a micro-strip line and built on a FR-4 substrate with a whole size of 18 x 30 mm2. A dual band printed antenna is created by introducing slots on the radiating element. By this, two bandwidth, covering C and X band, are achieved. In order to obtain a good fundamental antenna design, the initial studies were carried out theoretically, using CST Microwave Studio simulation software. In this case, the frequency range at return loss < 10 dB is 5.24 - 6.16 GHz for low frequency and is 7.9 -11.7 GHz for high frequency. In addition, the proposed antenna has good radiation characteristics and stable gains over the whole operating bands. A prototype of antenna is fabricated and tested. Experimental data show good agreement between simulated and measured results.

Analysis and Design of a New Dual Band Microstrip Patch Antenna Based on Slot Matching Y-Shaped

“…Indeed, several techniques are used including the disturbance slot geometry in the radiating element, which allows the creation of new resonances (Adnen et al 2010 andGhnimi et al 2013). Based on this idea, we created slots in the simulated antenna geometries given in the previous section.…”

“…Future requirements for advanced radar antennas include the need for dual-band operation (Allen et al 2005;Christina et al 2009;Zhilong et al 2012;Qu et al 2006;Andan et al 2009;Khunead et al 2007;Khaled and Saad 2008;Abdelaziz 2006;Gai et al 2010;Saidatul et al 2009;Anden et al 2010;Balanis 1997AND Ghnimi et al 2013. It is essential to integrate multiple bands for use in one device.…”