PROPAGATION OF WAVES IN A BIFURCATED CYLINDRICAL WAVEGUIDE WITH WALL IMPEDANCE DISCONTINUITY

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Propagation of Waves in a Bifurcated Cylindrical Waveguide with Wall Impedance Discontinuity

In the present work the radiation of sound from a bifurcated circular waveguide formed by a semi-infinite rigid duct inserted axially into a larger infinite tube with discontinuous wall impedance is reconsidered through an alternative approach which consists of using the mode matching technique in conjunction with the Wiener-Hopf method. By expressing the total field in the appropriate waveguid...

متن کامل

Propagation Properties of a Tunable Impedance Waveguide

In this paper propagation properties of a parallel-plate waveguide with tunable artificial impedance surfaces as sidewalls are studied both analytically and numerically. The impedance surfaces comprise an array of patches over a dielectric slab with embedded metallic vias. The tunability of surfaces is achieved with varactors. Simple design equations for tunable artificial impedance surfaces ar...

متن کامل

Propagation of elastic waves through a lattice of cylindrical cavities

We consider the wave propagation through a doubly-periodic array of cavity cylinders in an isotropic elastic medium using the method of matched asymptotic expansions, based on the assumptions that the scatterer size is much smaller than both the wavelength and the array periodicity. There is no restriction on the wavelength relative to the array periodicity, and hence the method yields explicit...

متن کامل

A Novel in vitro Exposure Apparatus for 60 GHz Millimeter-Waves with Post-Wall Waveguide

INTRODUCTION In recent years, the use of millimeter-waves (MMWs) is expected to increase in various applications. However there have been few studies on biological effects of MMW exposure. The current guidelines [1] for MMW exposure have been mainly derived from the extrapolation of the data obtained in microwaves and infrared optical radiations. It is necessary to investigate the effects of MM...

متن کامل

Propagation of Torsional Waves in a Waveguide of Arbitrary Cross- section Immersed in a Fluid

A Semi-Analytical Finite Element (SAFE) method is developed to model accurately the propagation velocity and leakage of guided waves along an immersed waveguide with arbitrary non-circular cross-section. Thus an accurate inverse model is provided to measure the density of the fluid by measuring the change of the torsional wave speed. Experimental results obtained with a rectangular bar in a ran...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Progress In Electromagnetics Research B

سال: 2008

ISSN: 1937-6472

DOI: 10.2528/pierb08031225