Antenna decoupling

Antenna decoupling (or antenna cross-talk reduction) is a set of techniques, based on physical and technical mechanisms, used to minimize interference between multiple antennas in an RF system. This ensures optimum performance in terms of radiation and reception, while preserving signal integrity. In modern environments, effective cross-talk reduction is essential to maximize the performance of communication systems.

Antennas can be characterized by several criterias indicating the impact of their coupling:

• Impedance matching, which determines their radiation frequencies.
• Radiation pattern shows how energy is transmitted/received in different directions, enabling analysis of how the antenna radiates or picks up RF signals;

The cross-talk between antennas can have a significant impact on their resonant frequency. This can lead to a shift outside the frequency band originally intended, and cause distortion of the radiation pattern.

Fig. 3: Mutual coupling (transmission coefficient) between two antennas

With FILAMAG-F, the transmission coefficient improves from -16.4 dB to -27.8 dB, at the Wi-Fi frequency, corresponding to a 69.4% reduction in coupling.

Our cross-talk reduction methods can be adapted to the space available and to your systems.

• Large frequency coverage, for reliable performance across multiple bands.
• Adaptability, with 3D printing that tailors the product to your needs and fits into existing cavities.
• A compact form, making it easy to integrate into tight spaces.
• Significantly reduced delivery times, so you’ll have your projects up and running in record time