High rejection filters for 5 GHz concurrent dual-radio WiFi

Autor: A. Louzir, D. Lo Hine Tong, J.L. Robert

Publikováno v: 2012 Asia Pacific Microwave Conference Proceedings.

This paper deals with the design of a high rejection microwave notch filters using a low cost planar technology. Thanks to these filters, it is possible to use concurrently in the same device two radios both operating in the 5 GHz WiFi band. The prop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea2303dde252a7a379357dbce4df6303
https://doi.org/10.1109/apmc.2012.6421556

Tunable low-pass active filter using active capacitor for multimode standards

Autor: A. Louzir, D. Lo Hine Tong, Julien Lintignat, J-Y. Le Naour, Bernard Jarry, Raafat Lababidi, J.L. Robert, Bruno Barelaud

Publikováno v: IEEE 18th conference on electronices, circuits and systems (ICECS)
IEEE 18th conference on electronices, circuits and systems (ICECS), Dec 2011, Beirut, Lebanon. pp.619-622
ICECS

This paper presents a novel tunable low-pass active filter aiming to protect the DVB-H receiver against the signals coming simultaneously from the GSM band and from the Digital dividend band. The filter concept is based on a high order low pass filte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4808e6974e532d4b2c81a1e8fb600966
https://hal.archives-ouvertes.fr/hal-00940091

Ultra compact multi-sector antenna system using retro-directive array concept

Autor: J.-F. Pintos, D. Lo Hine Tong, Ali Louzir, Philippe Minard

Publikováno v: 2011 IEEE International Symposium on Antennas and Propagation (APSURSI).

In this article a very compact antenna system allowing simultaneous activation of a pre-defined number of sectors is presented. The design approach is based on using multiple retro-directive arrays co-localized in the near field of feeding sources. P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50351f778c6d649606ad3364b710d56a
https://doi.org/10.1109/aps.2011.5996503

Radome enhancing multi-sector antenna radiation performances

Autor: Jean-Philippe Coupez, D. Lo Hine Tong, Ali Louzir, Julian Thevenard, C. Person, Corinne Nicolas

Publikováno v: Proceedings IEEE international symposium AP-S : Antennas and Propagation Society
IEEE international symposium AP-S : Antennas and Propagation Society
IEEE international symposium AP-S : Antennas and Propagation Society, Jul 2008, San Diego, United States. pp.1-4, ⟨10.1109/APS.2008.4619221⟩

International audience; A novel and original concept of relevant radome has been introduced and validated by the design of a foam radome prototype applied to a multi-sector antenna. Metallic elements, directly positioned into the radome, allow to con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b96e3b89e6136268809996003d7d0542
https://hal.archives-ouvertes.fr/hal-02359575

3D multi-sector vivaldi antennas based on metallized plastic technology

Autor: Corinne Nicolas, C. Person, Jean-Philippe Coupez, Julian Thevenard, D. Lo Hine Tong, Ali Louzir

Publikováno v: IEEE international symposium AP-S : Antennas and Propagation Society
IEEE international symposium AP-S : Antennas and Propagation Society, Jun 2007, Honolulu, Hawaii, United States. pp.5849-5852, ⟨10.1109/APS.2007.4396882⟩

International audience; A conceptually simple 3D multi-sector antenna based on an original layout of Vivaldi-type antennas and compatible with metallised plastic manufacturing technology is introduced in this paper. The solution offers a great freedo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0befc8c941378b77deeebb3b5d668f20
https://doi.org/10.1109/aps.2007.4396882