By David M. Pozar
This ebook bargains a quantitative and design-oriented presentation of the analog RF facets of recent instant telecommunications and information transmission platforms from the antenna to the baseband point. It takes an built-in method of issues similar to antennas and proagation, microwave platforms and circuits and communique structures.
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Additional info for Microwave and Rf Design of Wireless Systems
If the needed resolution is fixed, the losses restrict the possible distance between the source and the image. In the microwave experiments [,–] and in the optical experiments [–] the distance from the source to the subwavelength image was larger than the wavelength λ in free space, but the mechanisms of the subwavelength imaging were different from the operation of the Veselago–Pendry super-lens. In the optical experiment  the mechanism of the interaction of two surface waves on the sides of a highly polished silver layer (silver is an epsilon-negative material in the visible and ultraviolet ranges) was explored.
Media with Weak Spatial Dispersion . . . . . . . . . Helsinki University of Technology What the Theory of WSD Reveals for MTM . . . . . An Alternative Approach to the Description of WSD . . . . . . . . . . . . . . . . . . . . . . . Energy Density in Passive Artificial Materials and Physical Limitations to Their Material Parameters . . Sergei A. Tretyakov Energy Density ● Material Parameter Limitations for Low-Loss Passive Linear Media ● Concluding Remarks Constantin R.
Introduction Electromagnetic properties of metamaterials (MTM) are defined by the properties of inclusions (artificial molecules) and by their positioning in the matrix (in this chapter we consider only threedimensional bulk MTM). The inclusions forming many MTM are resonant and their resonances are in the frequency range where the distance between them can be a rather small fraction of the wavelength in the host medium.