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Tunable and dual band rectangular microstrip antenna for bluetooth and W i MAX applications
Author(s) -
Kale Ganesh M,
Labade Rekha P,
Pawase Ramesh S
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29242
Subject(s) - hfss , microstrip antenna , standing wave ratio , multi band device , antenna (radio) , patch antenna , return loss , bluetooth , radiation pattern , acoustics , optics , materials science , physics , electrical engineering , engineering , telecommunications , wireless
A rectangular microstrip antenna (RMSA) with two slots placed close and parallel to nonradiating edges for tunable and dual band operation with single feed has been demonstrated. A tunable operation can be achieved by the adding electrically small slots along the patch edges. For two frequencies TM 10 and TM 30 are the first two modes of simple RMSA are perturbed and two frequencies with same polarization, broadside radiation, and impedance characteristics. Dual frequency operations easily obtained if two slots placed together and are of same dimensions, which equals to greater than half of length. The proposed design is suitable for dual band operation for Bluetooth 2450 MHz–WiMAX 3500 MHz. Slot dimensions was taken identical for the symmetry. The performance parameters of the proposed RMSA with and without slots were compared. Furthermore, a parametric analysis carried out by taking variations in the length (L s ), width (d) and spacing (S) between the two slots, the frequency ratio is tuned in the range 1.41 to 1.45. The dimensions of the proposed antenna 50 × 54 × 1.6mm 3 with the size reduction compared with conventional microstrip antenna (MSA).The proposed antenna is simulated using HFSS based on finite element method and simulated return loss, radiation pattern and impedance were presented. Finally fabrication and measurement of VSWR of the proposed antenna has been taken. The HFSS results and measured results are in good agreement. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1986–1991, 2015