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High Impedance Surfaces (HIS) are one of the breakthroughs that emerged in the modern antenna design area in 1999. HISs are ideal candidates as antenna ground planes because of their near perfect magnetic ground conductor (PMC) behavior at particular ranges. However, current rectangular designs have.....
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A macroporous ceramic body was prepared by combining a mixture of ceramic forming components with a polymer network structure to form a second intermediate mixture comprising a polymer network. The polymer network is then removed in the drying and/or sintering step leaving an interconnected open por.....
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