Miniaturized Slot-loaded Mushroom EBG Cell for MBAN and Wi-Fi Bands

Systematic design approach for two new types of EBG cells operating in the Medical Body Area Network (MBAN) and ISM bands are reported. The proposed EBG cells make use of the conventional mushroom and slot loaded EBG cells. The proposed techniques utilize tuning of slot dimensions to achieve miniaturization. A reduction of more than 20% is obtained using the presented designs when compared to the mushroom cell. Furthermore, an algorithm that combines the LC lumped circuit model and dispersion diagram of the EBG cells to expedite the design and analysis is developed. To experimentally validate the design feasibility and hence the bandgap property of the proposed cells, an array of 3x5 unit cells is prototyped. The measured results show good agreement with the simulated results at the desired band.