Matching Circuit Optimization for Antenna Applications
Impedance matching is an essential part of antenna design. The input impedance of an antenna needs to be reasonably close to the amplifier impedance (e.g. 50 Ohm), otherwise the signal is reflected back to the amplifier and not radiated by the antenna. In many applications matching circuits consisting of discrete inductors and capacitors, or transmission lines are used to improve the impedance matching characteristics of the antenna. This whitepaper discusses the optimization of matching circuits especially to antenna applications. Although the design of matching circuits sounds simple, there are many practical considerations that need to be addressed.You need to be signed into MyCST to access the full article. Don’t have an account? Register here.Full Article
The behavior of a ferrite loaded waveguide antenna is predicted first by a 2D-analytical model and second by CST MICROWAVE STUDIO®. The results of the predictions are compared with measurements and show good agreement. (Courtesy and permission of KAIST...
A Square Loop Antenna Using Hybrid High Impedance Surface and Four Way Wilkinson Power Divider
A planar square loop antenna on a hybrid High Impedance Surface (HIS) is simulated, including a four way Wilkinson power divider. Using a hybrid HIS means the overall profile of the antenna can be reduced. The semi doughnut radiation pattern produced...
Microstrip Patch Array Design
This article explains the design process for a planar microstrip patch array for WLAN frequencies using the circuit and full-wave 3D solvers and optimization tools in CST STUDIO SUITE®. The goal in this case is to design an array with high directivity,...
MIMO Systems Simulations for Automotive Environment
Multiple Input Multiple Output (MIMO) systems are often used to improve the quality of service and efficiency of wireless communications. The automotive environment is an especially challenging problem for antenna systems, since the large metal chassis...
USB 3.1 Type-C Simulation and Compliance Test
USB 3.1 Type-C Connector Simulation and SI compliance tool.
With the continued adoption of USB interface, there is a need to adapt the USB technology with the newer devices as they become smaller, thinner, lighter and faster. Several types of USB connector...
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