Miniaturized electromagnetic band gap structures for wireless applications

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This proposes research is intended to develop miniaturized Electromagnetic Band Gap (EBG) structures using novel material for the purpose of electromagnetic interference filtering and noise suppression in high-speed packages and structures. It is also intended to provide an effective medium model for the EBG that will allow easy modeling of systems and circuits that utilize EBG. The miniaturization objective will be pursued using advanced high-permittivity material, optimized topology and vertical integration in LTCC technology. The project is expected to have an important impact on electromagnetic noise suppression in the 100MHz to 20GHz frequency range for small-in-size wireless systems requiring miniaturized packages. This work will include material development and characterization. This work is expected to have a strong impact not only in printed circuit board and packaging technology but also in small and low-profile antennas and phased-array antenna design. As the size to wave length ratio of antennas continue to decrease and as antennas continue to have wider bandwidths, ultra wideband miniaturized EBGs becomes an essential enabling technology. THz electromagnetic waves technology has recently reemerged as a strong contender for non-invasive detection of concealed and harmful substances such as explosive material and drugs. The primary drawback of THz technology is the cost of THz oscillators and amplifiers. We propose low-cost sources involving EBG material (for the generation of backward traveling waves.) We plan to extend EBG design and concepts to the upper GHz and lower THz frequency regimes. In such regimes, nano technology in conjunction with advanced materials will be critical in achieving resonators with tunable capacitive and inductive properties.