First, we carry out an initial simulation without seeking to optimize antenna matching.
Maximize the efficiency of your patch antenna with simulation
When it comes to designing an antenna, one of the most important objectives is to ensure optimum signal transmission. To achieve this, it's essential to optimize antenna matching, to maximize the radiation of energy from the feed source to the outside. In this article, we show you how to optimize the matching of a patch antenna on our new simulation software, CAPITOLE RF.
In this non-optimized configuration, a calculation is performed using a solver based on the method of moments to determine the reflection coefficient.
The antenna designed to operate around 2.4 GHz has a reflection coefficient of around -9dB, which is not optimal.
To improve the antenna’s matching performance, a matching circuit is added, consisting of a schematic including a 1.4 pF capacitor in parallel.
1 - First simulation
2 - Mesh size
The mesh is created automatically by CAPITOLE.
3 - Power supply
The power supply consists of a voltage source generator positioned directly at the end of the supply line.
4 - Calculating the reflection coefficient
In this non-optimized configuration, a calculation is performed using a solver based on the method of moments to determine the reflection coefficient.
The antenna designed to operate around 2.4 GHz has a reflection coefficient of around -9dB, which is not optimal.
To improve the antenna’s matching performance, a matching circuit is added, consisting of a schematic including a 1.4 pF capacitor in parallel.
Capitole’s “ad matching networks” function is used to achieve this improvement.
Once the calculation has been run again with this new configuration, the result shows a curve with a much lower reflection coefficient level in the antenna’s operating band.
At 2.4 GHz, the reflection coefficient is now close to -30 dB, confirming the antenna’s much better adaptation.
Conclusion
Optimizing patch antenna matching through simulation is an essential process for ensuring efficient signal transmission.
With our simulation software, you can explore a wide range of configurations and parameters to improve your antenna’s performance.
Using CAPITOLE RF will enable you to create high-performance patch antennas capable of meeting the most demanding communication requirements.
