Frequency Reconfigurable Stacked Patch Microstrip Antenna (FRSPMA) for LTE and WiMAX applications

This paper presents the frequency reconfigurable antenna that can be applied either in LTE (2.6 GHz) or WiMAX (3.5 GHz) applications. This antenna is designed with a combination of an aperture coupled as the feeding technique and stacked patch technology or known as a Frequency Reconfigurable Stacked Patch Microstrip Antenna (FRSPMA). It consists of three substrates layers where all the layers are designed using RT-Rogers 5880 with 0.787 mm thickness. Air gap with 3 mm thickness is located between the ground and bottom patch substrate to enhance the gain performances and reducing the spurious effects from the feeding line. The designed was simulated using CST Microwave Studio at operating frequency of 1 GHz to 4 GHz. The effect of switch configuration either at ON or OFF state were studied. By configuring the RF switch at the feedline, the activation of the different radiating patch at different substrate layers (top or bottom patch) and aperture slots antenna can be controlled. During the ON state, both radiating patches and aperture slots are activated and operated at 2.6 GHz with -25.58 dB. While during the OFF state, only bottom patch and aperture slot 1 are activated and at this time the antenna can be operated at frequency 3.5 GHz with -45.37 dB. Good agreement between simulation and measurement results is achieved. The performance of the designed antenna was analyzed in term of return loss, VSWR, gain and radiation pattern.

[1]  Lan Li,et al.  A compact frequency reconfigurable antenna applied to WLAN/WiMAX , 2011, 2011 Global Mobile Congress.

[2]  M. T. Ali,et al.  A reconfigurable microstrip antenna with a slotted patch at dual frequency , 2011, 2011 8th International Symposium on Wireless Communication Systems.

[3]  M. Jusoh,et al.  A novel compact reconfigurable multi-band antenna , 2011, 2011 IEEE International RF & Microwave Conference.

[4]  D. Budimir,et al.  A reconfigurable H-shape antenna for wireless applications , 2010, Proceedings of the Fourth European Conference on Antennas and Propagation.

[5]  M. Muthukumar,et al.  Design and realization of Rectangular Reconfigurable Antenna (RRA) for airborne RADAR , 2011, 2011 IEEE International RF & Microwave Conference.

[6]  M. K. A. Rahim,et al.  The Investigation of PIN diode switch on reconfigurable antenna , 2011, 2011 IEEE International RF & Microwave Conference.

[7]  M. T. Ali,et al.  Frequency reconfigurable quasi-Yagi microstrip antenna with beam shaping for WiMAX application , 2011, 2011 IEEE International RF & Microwave Conference.

[8]  M. T. Ali,et al.  A 2 by 2 planar array antenna using aperture coupler technique , 2011, 2011 IEEE Symposium on Wireless Technology and Applications (ISWTA).

[9]  M. Kumar,et al.  Novel Frequency Reconfigurable Microstrip Patch Antenna Based on a Square Slot for Wireless Devices , 2012, 2012 International Conference on Communication Systems and Network Technologies.

[10]  T. A. Rahman,et al.  A Reconfigurable Planar Antenna Array (RPAA) with back lobe reduction , 2010, 2010 International Workshop on Antenna Technology (iWAT).