Improvement of Transmission between Vivaldi Antennas for Inter-Chip Wireless Interconnect Network

Pierre-Marie Martin (1) , Thierry Le Gouguec (1) , Najib Mahdi (1)

1 Lab-STICC_UBO_MOM_DIM

This paper presents measurement and simulation results of a wireless communication network in Printed Circuit Board (PCB) context. First, we point out the needs and the constraints in term of communication for a Wireless Interconnect Network-on-Board (WiNoB) and we explain why we have chosen “Vivaldi” antennas for this application. Then, we present the transmission coefficients between the chosen printed antennas for the achievement of a 10 GHz demonstrator in a four antennas communication network. Simulation results show levels of transmission between -20 dB and -10 dB over a large bandwidth. To improve these levels, we propose a modification of the propagation channel by inserting a metal grid or a checkerboard between the antennas. The measurements confirm a significant increase in transmission levels, particularly in the case of “face to face” communication.

Mots clés: Wireless Network on Board; interconnects; Vivaldi antenna; PCB technology; transmission; communication network

Domaines: Electronique

Pierre-Marie Martin, Thierry Le Gouguec, Najib Mahdi. Improvement of Transmission between Vivaldi Antennas for Inter-Chip Wireless Interconnect Network. 19th IEEE Workshop on Signal and Power Integrity - SPI 2015, May 2015, Berlin, Germany. ⟨hal-01174637⟩