An efficient solution of a class of integrals arising in antenna theory

A novel analytical solution for a class of power-radiation integrals, arising in antenna theory, is presented. These integrals are then applied to the analysis of circular-loop and circular-microstrip antennas, and the results are compared to published results obtained using numerical integration. The analytical solution is shown to be sufficiently accurate and efficient for the calculation of the radiation characteristics of these types of antennas. Possible applications to other types of antennas are discussed

A comment on the radiation resistance

For original paper see ibid., vol. 44, no. 5, p. 98-101 (2002). States that the second expression for the radiation resistance, developed with the help of Mahony's comments [2003], has some advantages, being more concise analytically and having more stable and rapidly convergent behavior numerically

Modal transmission-line modeling of propagation of plane radiowaves through multilater periodic building structures

The modal transmission-line (MTL) method is used to analyze the shielding effectiveness of buildings, which is an important parameter for the accurate planning of microcellular communication networks. For that, the buildings are modeled as multilayer lossy periodic structures. After a description of the extended MTL-theory, the newly developed MTL model is applied to brick walls, reinforced-concrete walls and concrete block walls. From a comparison of the MTL-results with previously published theoretical or experimental results it is concluded that the MTL method is very well suited, because it is accurate as well as computational time efficient

Modal transmission-line modeling of propagation of plane radiowaves through multilater periodic building structures

The modal transmission-line (MTL) method is used to analyze the shielding effectiveness of buildings, which is an important parameter for the accurate planning of microcellular communication networks. For that, the buildings are modeled as multilayer lossy periodic structures. After a description of the extended MTL-theory, the newly developed MTL model is applied to brick walls, reinforced-concrete walls and concrete block walls. From a comparison of the MTL-results with previously published theoretical or experimental results it is concluded that the MTL method is very well suited, because it is accurate as well as computational time efficient

Application of the modal transmission-line method to radiowave propagation through building walls

The modal transmission-line (MTL) method is used to analyse the transmission coefficient of building walls, which is an important parameter for the accurate planning of microcellular mobile networks. For that, the buildings walls are modelled as multilayer periodic structures. After a description of the extended MTL theory, the newly developed MTL mcthod is applied to reinforced-concrete walls. From a comparison of the MTL results with previously published theoretical results obtained by the finite-element method, it is concluded that the MTL method is very well suited because it is accurate as well as computational-time efficient