首页>
外国专利>
High efficiency printed circuit array of log-periodic dipole arrays
High efficiency printed circuit array of log-periodic dipole arrays
展开▼
机译:对数周期偶极子阵列的高效印刷电路阵列
展开▼
页面导航
摘要
著录项
相似文献
摘要
A printed circuit array of log periodic dipole arrays (LPDA) where each LPDA includes dipole elements with arms having reduced size through use of high effective permittivity substrate portions. The radiation efficiency degradation generally associated with use of a high permittivitty substrate can be be reduced through addition of magnetic particles to provide enhanced permeability in the high permittivity regions. The substrate preferably includes meta-materials. The feed line can provide a broadband transformation by being configured as a plurality of segments having quarter wave electrical lengths.
展开▼