This Small Business Innovation Research (SBIR) Phase I project pursues the development of a novel volumetric efficient broadband integrated circulator antenna (BICA) module for wireless and satellite communication as well as radar applications. Metamagnetics proposes to leverage its expertise in advanced metamaterials and textured ferrite composite development to realize a broadband electronic bandgap (EBG) metamaterial as a means for achieving a dramatic profile reduction (<ë/60 in contrast to ë/4) in planar antennas. Following a novel design approach, the low profile antenna is combined with a circulator to produce the BICA as a single component leading to significant volumetric savings and highly efficient power transfer in communication and radar systems, among other figures of merit. Phase I activities focus on development of the ultra wideband EBG metamaterial including the design and refinement of component materials, such as specially designed textured ferrite substrates operating in the UHF to S frequency range. Further, broadband antenna and ferrite circulator devices are co-designed as a single component to achieve efficient power transfer and enhanced power handling capability. This combination of an original design approach with the development of advanced metamaterials has never been attempted and represents a highly innovative and enabling advance.
The broader impact/commercial potential of this project includes addressing the critical needs of both commercial and Department of Defense (DoD) markets. The proposed dual use metamaterial-based integrated circulator-antenna technology holds promise of significant performance improvements in height, area, and weight reduction over current technologies in wireless, satellite communication, and radar systems. The size of DoD transmit receive module and circulator markets alone is estimated at more than $600M in 2011 poised for growth at a cumulative aggregate rate of 7 percent over the next 5 years. The success of Phase I in improving the bandwidth and increasing volumetric efficiency of radio frequency front ends has an enormous potential to impact commercial communications and DoD industries and stimulate the U.S. economy by producing advanced technologies and, importantly, high-skilled jobs. The Phase I effort will be performed by a veteran-owned small-business. Employees include a woman as minority-owner and COO and two students actively pursuing engineering doctorates. As part of this Phase I, all tuition expenses incurred during the length of program will be covered. Three additional students pursuing graduate studies in entrepreneurship will participate in conducting market research as well as business and product development activities associated with this Phase I program.
This Small Business Innovation Research (SBIR) Phase I project pursued the development of a novel volumetric efficient broadband integrated circulator antenna (BICA) module for wireless and satellite communication as well as radar applications. In this program, Metamagnetics Inc. leveraged its expertise in advanced metamaterials and textured ferrite composite development to realize a broadband electromagnetic bandgap (EBG) metamaterial as a means for achieving a dramatic profile reduction (<λ/60 in contrast to λ/4) in planar antennas. Following the novel design approach of low profile antenna elements, the radiating element was combined with a circulator to produce the BICA module as a single component, leading to significant volumetric savings and highly efficient power transfer in communication and radar systems, among other figures of merit. Phase I activities focused on development of the ultra wideband EBG metamaterial including the design and refinement of component materials, such as specially designed textured ferrite substrates operating in the UHF to S frequency range. The results of these studies can be seen in Figure(s) 1 and 2. Here, Figure 1 depicts the successful fabrication of the hexaferrite materials used in the orientation process and subsequent EBG design. Figure 2 depicts the design and optimization of the ultra wide band EBG metamaterial, as well as demonstrates how the bandwidth of the metamaterial was calculated, including the design setup. The broadband ferrite circulator (Figure 3) and antenna devices have been co-designed as a single component to achieve efficient power transfer and enhanced power handling capability in the completed BICA module (Figure 4). The results of this process show gains close to Chu's limit, favorable return loss bandwidths ~80%, and efficiencies >50%. This combination of an original design approach with the development of advanced metamaterials has never before been attempted and represents a highly innovative and enabling advance.
