Resumo

VARGAS-CHABLE, Pedro; TECPOYOTL-TORRES, Margarita; CABELLO-RUIZ, Ramon  e  MIRELES JR. GARCIA, Jose. Slotted and Notched Rectangular Antenna Designed for Biomedical Applications. Program. mat. softw. [online]. 2024, vol.16, n.2, pp.1-10.  Epub 17-Set-2024. ISSN 2007-3283.  https://doi.org/10.30973/progmat/2024.16.2/1.

This paper presents the design and simulation of a microstrip-fed patch antenna for biomedical applications using FR-4 as substrate. The optimization of its response is performed by parameterizing elements, starting from (1) a simple rectangular antenna, (2) an array of slots in the right side, (3) slots and cuts in the corners of the antenna, (4) with the elements of (3) and a top notch in the patch, obtaining an evolution until obtaining (5) an antenna in which all the parameterized elements are integrated. The variation of the rectangular antenna response starts from model (1) with fr=2.22 GHz, G=2.22 dB, S11=-22.81, BW=118.8 MHz, at 2.24 GHz, VSWR=1.25 dB and efficiency of 0.085, to model (5) with fr=2.5 GHz, VSWR=1.35 dB, G=2.96 dB, S11=-22.16 dB, BW=69 MHz at 2.54 GHz and efficiency of 0.47. That is, improving the relevant antenna parameters, gain by 34.54% and efficiency by 552.94%.

Palavras-chave : 2.4 GHz; Bandwidth; Gain; Ansys Electronics; HFSS.

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