Losses can arise from polarization mismatches. Ricardo Perez Alion Science and Technology, Annapolis, MD Antenna polarization is one of many parameters to consider when designing a system. The polarization of the transmitter antenna in a system should be properly aligned with the receiver antenna to maximize coupling. Maximum signal coupling between stations occurs when both … [Read more...]
Antennas
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Integrated Inductive Component Reduces Radiated Emissions in Power Applications
The geometry of magnetic components can affect the incidence of unwanted low frequency radiation in the magnetic field. Gabriel Arianes, David Castillo, Raquel Garcia and Oscar Perez; Ferroxcube, Guadalajara, Spain INTRODUCTION The miniaturization trend has resulted in smaller components and greater board densities in electronic applications. This very density, which … [Read more...]
Photonic Bandgap Structures and Their Application to EMC Antennas
PBG structures have been explored as a way of reducing harmonics. Vincente Rodríguez-Pereyra, Ph.D., ETS-Lindgren The concept of photonic structures has recently been applied to the study of the microwave frequency (MW) range [1, 2]. Photonic bandgap (PBG) structures are analogous to a crystal lattice. It is known that in natural crystals there are certain non-occurring or … [Read more...]
Introduction to Measurement Uncertainty for Antenna Calibration
Critical items need to be identified for a particular calibration method MIKE HOWARD The purpose of this article is to introduce the reader to basic elements and concepts in the computation of measurement uncertainty for antenna calibration. Measurement uncertainty is a tool used to account for errors associated with a measurement system. Uncertainty can be used for … [Read more...]
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