A multicomposite, multilayered cylindrical dielectric resonator for application in MMIC's

Wang, Hui; Wolff, I.

doi:10.1109/22.277435

Cited by 18 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unfortunately, the stair‐casing problem occurs when attempting to model the curved surfaces of a sphere using rectilinear regions. To overcome this, a method suggested by Hui 21 was used where the average results were taken for two approximations, where the stepped outline of the rectilinear approximation is either circumscribed or inscribed by the cross section of the sphere. A convergence study was then conducted to find the optimum number of modes required.…”

Section: Resultsmentioning

confidence: 99%

Do Grain Boundaries Affect Microwave Dielectric Loss in Oxides?

Breeze

Perkins

McComb

et al. 2009

Journal of the American Ceramic Society

136

View full text Add to dashboard Cite

Reducing loss in microwave dielectrics is critical to improving performance in wireless communications systems. Grain boundaries in polycrystalline microwave dielectric ceramics have long been suspected of increasing dielectric loss. They are often cited as the main contributor to the observed difference in dielectric losses between single crystals and polycrystalline ceramics. The exact configuration of grain boundaries is problematic to quantify in practice and their influence on the dielectric loss difficult to distinguish from other defects such as porosity, oxygen vacancies, impurities, and dislocations. Here we measure the sensitivity of a single grain boundary in a magnesium oxide bi‐crystal to the polarization of an applied microwave field as a function of temperature.

show abstract

Section: Resultsmentioning

confidence: 99%

Do Grain Boundaries Affect Microwave Dielectric Loss in Oxides?

Breeze

Perkins

McComb

et al. 2009

Journal of the American Ceramic Society

136

View full text Add to dashboard Cite

show abstract

“…A conical dielectric resonator was analysed with the algorithm demonstrated here and the results were compared with those presented in [15]. In radial direction the shape of the cone was approximated by a set of single coaxial rings, which consisted of inhomogeneous permittivities in z-direction.…”

Section: Numerical Resultsmentioning

confidence: 99%

Analysis of Waveguide Structures in Cylindrical Coordinates

Pregla¹

2008

Analysis of Electromagnetic Fields and Waves

View full text Add to dashboard Cite

“…Continuous search for new high Q microwave materials and components is one of the main aim of material science and technology. At millimeter-wave frequencies the reduction in the size of the dielectric resonators has focused the attention of the researchers towards new shapes such as spherical [3] and hemispherical resonators [4]. Single shell spherical dielectric Bragg resonators with Q values as high as 10 5 have been constructed [5].…”

Section: Introductionmentioning

confidence: 99%

“…A number of workers have studied the resonators with the spherical [3,[6][7][8][9][10][11][12][13][14][15][16] and hemispherical [4,17] geometries in the past using different approaches.…”

Section: Introductionmentioning

confidence: 99%

Normal modes and quality factors of shielded composite dielectric spherical resonators

Yadav

Maurya

et al. 2009

Indian J Phys

View full text Add to dashboard Cite

Electromagnetic field analysis of shielded composite dielectric spherical resonator in which the dielectric sphere is composed of two concentric spheres with different dielectric materials has been made. Characteristic equations for the TE nml and TM nml modes have been derived. From these characteristic equations, the resonant frequencies and quality factors have been calculated using numerical method. Computations of the resonant frequencies and quality factors have been made for resonators with parameters suitable for the optical and microware regions.In this paper we have presented the analysis and the results obtained from the numerical computations for shielded composite dielectric spherical resonator in which the dielectric sphere is composed of two concentric spheres with different dielectric materials. Starting from the Maxwell's equations for such a resonators have been derived and resonant frequencies and quality factor's have been calculated for the TE nml and TM nml modes using numerical method.

show abstract

A multicomposite, multilayered cylindrical dielectric resonator for application in MMIC's

Cited by 18 publications

References 14 publications

Do Grain Boundaries Affect Microwave Dielectric Loss in Oxides?

Do Grain Boundaries Affect Microwave Dielectric Loss in Oxides?

Analysis of Waveguide Structures in Cylindrical Coordinates

Normal modes and quality factors of shielded composite dielectric spherical resonators

Contact Info

Product

Resources

About