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Observations of multi-frequency Raman generated spectra indicate that at high intensities, the Raman process is better described using a dressed state picture of two-photon Stark shifted Raman levels.
This paper discussed the design of rectangular spirals used to create an electrically small patch antenna with a μ-negative core (MNG) substrate and showed that varying the number of spirals placed on the individual boards provides added design freedom beyond selecting the number of turns. For an electrically small antenna with a fixed size, resonant frequencies were achieved from 220 MHz to 675 MHz...
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