60 GHz SIW Filter with 1.7 dB of Insertion Loss and 7 ps Added Jitter on OOK Modulated Signal

Abstract

This paper presents a 60 GHz 4th order resonant cavities Substrate Integrated Waveguide (SIW) bandpass filter with measured average insertion loss of 1.7 dB and a low in-band ripple of 0.76 dB using a low cost 2 layers PCB process. Robustness to manufacturing process variations is verified on more than 20 measured samples. The filter impact is evaluated in a wireless link composed of commercial 60 GHz transceiver chips from ST Microelectronics fabricated in 65nm bulk CMOS technology. The filter causes a wireless jitter degradation of 22 ps and only 7 ps in conducted measurements for an OOK modulation at 5 Gbps. This planar filter present one of the lowest loss and in-band ripple in comparison to prior art, on top of satisfying spectral constraints and modulated signal quality specifications in the 57-64 GHz band.