conference paper Sylvain Ballandras author Saed Abughannam author 37628 Emilie Courjon author Christoph Scheytt author 37144 58 department Low-power receivers use direct-detection receiver architecture for its design simplicity and its low power dissipation. However, the direct-detection based receivers suffer from co-channel interference which significantly degrades the communication reliability. Co-channel interference robustness can be improved by using a BPSK Barker code modulated Surface Acoustic Wave (SAW) correlator as a prior stage to the RF direct detection circuit. This paper reports in details the design, fabrication and measurements of a 2.45 GHz SAW correlator with 13 bits length Barker code. The device is fabricated on Lithium Niobate LiNbO3 substrate and it is composed of an input non-coded Inter Digital Transducers (IDT), a Piezoelectric substrate and an output coded IDT. The device wavelength λ is set to 1.6 μm, considering a phase velocity of the wave equal to 3970 m.s-1. Several configurations of the device were designed and fabricated, particularly varying the aperture and the non-coded IDT length to find out the optimal device configuration. All devices were found to operate with Insertion Loss (IL) ranging from 12 to 15 dB at 2.45 GHz with a tip probing measurement setup, while a packaged sample has an IL of 12.45 dB at 2.44 GHz mounted on a PCB with external 50 Ω LC matching network. Additionally, time-domain measurement for the packaged device shows that the output has a correlation peak with a peak-to-side-lobe (PSL) ratio of 4:1 for a -0.5 dBm input BPSK Barker code signal. 2020 eng https://ieeexplore.ieee.org/document/9080181 S. Ballandras, S. Abughannam, E. Courjon, and C. Scheytt, “Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers,” 2020. Ballandras, S., Abughannam, S., Courjon, E., &#38; Scheytt, C. (2020). Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers. <i>GeMiC 2020 - German Microwave Conference</i>. Ballandras, Sylvain, Saed Abughannam, Emilie Courjon, and Christoph Scheytt. “Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers.” In <i>GeMiC 2020 - German Microwave Conference</i>, 2020. S. Ballandras, S. Abughannam, E. Courjon, C. Scheytt, in: GeMiC 2020 - German Microwave Conference, 2020. Ballandras, Sylvain, et al. “Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers.” <i>GeMiC 2020 - German Microwave Conference</i>, 2020. @inproceedings{Ballandras_Abughannam_Courjon_Scheytt_2020, title={Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers}, booktitle={GeMiC 2020 - German Microwave Conference}, author={Ballandras, Sylvain and Abughannam, Saed and Courjon, Emilie and Scheytt, Christoph}, year={2020} } Ballandras S, Abughannam S, Courjon E, Scheytt C. Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator at 2.45 GHz for Low-Power Wake-up Receivers. In: <i>GeMiC 2020 - German Microwave Conference</i>. ; 2020. 240302021-09-09T11:50:23Z2022-01-06T06:56:06Z