Landing Structure For SMA Coaxial Connector
Verified
A first design is finished, a complete explanation of the targeted functionality is included, and the targeted printer technology has been provided. This AME design also provides a model which is proven to fulfill the targeted functionality. Furthermore, the AME structure has been printed and validated by measurements. A complete set of the measurement setup and results is provided.
To get RF signals steady and with as few reflections as possible onto your AME structure, a well designed interface to the selected RF connector is needed. This design proposes to use a SMA connector that can be screwed to the AME device without the need of any solder contacts. The datasheet of the connector can be found below in the Downloads section.
Detailed Description
The design offers a direct connection from the coaxial SMA connector to a printed coaxial line. Compared to the launching of RF signals using different setups, the signal stays in a coaxial regime, which includes shielding throughout the whole structure. This leads to a reduced impact on EMC considerations as well as a lower level of unwanted crosstalk, which could deteriorate the signal’s integrity.
To measure the performance of the signal launcher, five samples of the structure have been realized in a back-to-back setup. The graphs below show the scattering parameters measured for the 5 test samples. The results indicate that the reproducibility of the prints is very high. While the results show very good performance for frequencies up to 12 GHz (S11 < -20dB), the reflection level rises with higher frequencies.
3D-Model Preview
