Antenna size and clearanceĪntenna gain (or loss) must be part of a trade-off study between performance and the physical realization considerations of size, placement and clearance (distance from obstructions). This relation is only valid for free-space propagation, but illustrates the important role of the antenna gain in the maximization of the receive-to-transmit power ratio, or system link gain. Given those parameters, one can ascertain the amount gain or loss required to maintain the communication range by using the Friis Transmission formula : The first step in establishing antenna requirements is to determine the desired communication range and terminal characteristics of the radio system (i.e., transmit power, minimum receiver sensitivity level).
With the advent of prolific wireless communications applications, system designers are in a position to consider the placement and performance of an antenna system. Antenna requirements Gain and communication range A measurement discussion includes reflection parameter measurements and directive gain measurements. A center-fed dipole antenna is presented as a design/simulation example. These considerations include system requirements, antenna selection, antenna placement, antenna element design/simulation and antenna measurements. The seamless integration of the solvers into one user interface in CST Studio Suite enables the easy selection of the most appropriate simulation method for a given problem class, delivering improved simulation performance and unprecedented simulation reliability through cross-verification.An overview of antenna design considerations is presented. Alongside these are simulation methods available for charged particle dynamics, electronics, and multiphysics problems.
These represent the most powerful general purpose solvers for high frequency simulation tasks.Īdditional solvers for specialist high frequency applications such as electrically large or highly resonant structures complement the general purpose solvers.ĬST Studio Suite includes FEM solvers dedicated to static and low frequency applications such as electromechanical devices, transformers or sensors. CST Studio Suite® gives customers access to multiple electromagnetic (EM) simulation solvers which use methods such as the finite element method ( FEM) the finite integration technique (FIT), and the transmission line matrix method (TLM).
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