UBO - Université de Brest (Université de Bretagne Occidentale - 3 Rue des Archives 29238, Brest - France)
Abstract : This article describes an analog phase shifter able to provide a continuously tunable phase shift up to 180 by using a single allpass unit cell. The proposed topology is compact and easy to implement, and brings an interesting compromise between phase variation, insertion and return losses. Indeed, for a 7.5:1 tuning ratio of varactor capacitance, a phase shift variation of more than 186 is obtained from 6 to 7GHz with a maximum insertion loss of 1.8 dB. The 105 /dB resulting Figure-of-Merit is thus among the best in distributed approaches with varactors.
http://hal.univ-brest.fr/hal-00867023
Contributeur : Marc Le Roy
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Soumis le : vendredi 27 septembre 2013 - 15:28:10
Dernière modification le : mardi 16 janvier 2018 - 15:54:25
Document(s) archivé(s) le : vendredi 7 avril 2017 - 04:07:01
Khaled Khoder, André Pérennec, Marc Le Roy. A 180° tunable analog phase shifter based on a single all-pass unit cell. Microwave and Optical Technology Letters, Wiley, 2013, 55 (12), pp.2915-2918. 〈10.1002/mop.27955〉. 〈hal-00867023〉
