منابع مشابه
Parametric analysis of a broadband Archimedean spiral antenna with cavity
In this article an Archimedean spiral antenna is designed and analyzed that has good operation in broadband application. By analyzing this design, the effects that different parameters have on antenna operation will be studied and ways of optimization will be found. Influences of cavity height and number of turns to obtain good matching and gain in a frequency interval of 4 to 18 GHz will be d...
متن کاملSqueezing and photon distribution in a vibrating cavity
Abstract. We obtain explicit analytical expressions for the quadrature variances and the photon distribution functions of the electromagnetic field modes excited from vacuum or thermal states due to the non-stationary Casimir effect in an ideal one-dimensional Fabry–Perot cavity with vibrating walls, provided the frequency of vibrations is close to a multiple frequency of the fundamental unpert...
متن کاملExperimental investigation of universal parametric correlators using a vibrating plate.
The parametric variation of the eigenfrequencies of a chaotic plate is measured and compared to random matrix theory using recently calculated universal correlation functions. The sensitivity of the flexural modes of the plate to pressure is used to isolate this symmetry class of modes and simplify the data analysis. The size of the plate is used as the external parameter and the eigenvalues ar...
متن کامل98 10 07 7 v 1 2 6 O ct 1 99 8 Resonance photon generation in a vibrating cavity
The problem of photon creation from vacuum due to the nonstationary Casimir effect in an ideal one-dimensional Fabry–Perot cavity with vibrating walls is solved in the resonance case, when the frequency of vibrations is close to the frequency of some unperturbed electromagnetic mode: ω w = p(πc/L 0)(1+δ), |δ| ≪ 1, p = 1, 2,. .. (L 0 is the mean distance between the walls). An explicit analytica...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2004
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2003.12.063