---
_id: '24030'
abstract:
- lang: eng
  text: 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.
author:
- first_name: Sylvain
  full_name: Ballandras, Sylvain
  last_name: Ballandras
- first_name: Saed
  full_name: Abughannam, Saed
  id: '37628'
  last_name: Abughannam
- first_name: Emilie
  full_name: Courjon, Emilie
  last_name: Courjon
- first_name: Christoph
  full_name: Scheytt, Christoph
  id: '37144'
  last_name: Scheytt
citation:
  ama: '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.'
  apa: 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>.
  bibtex: '@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} }'
  chicago: 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.
  ieee: 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.
  mla: 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.
  short: 'S. Ballandras, S. Abughannam, E. Courjon, C. Scheytt, in: GeMiC 2020 - German
    Microwave Conference, 2020.'
date_created: 2021-09-09T11:50:23Z
date_updated: 2022-01-06T06:56:06Z
department:
- _id: '58'
language:
- iso: eng
publication: GeMiC 2020 - German Microwave Conference
related_material:
  link:
  - relation: confirmation
    url: https://ieeexplore.ieee.org/document/9080181
status: public
title: Design and Fabrication of Barker Coded Surface Acoustic Wave (SAW) Correlator
  at 2.45 GHz for Low-Power Wake-up Receivers
type: conference
user_id: '15931'
year: '2020'
...