| Title | Tunable Phase Shifter Based on Few-Layer Graphene Flakes |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2019 |
| Authors | Yasir, M., Bistarelli S., Cataldo Antonino, Bozzi M., Perregrini L., and Bellucci S. |
| Journal | IEEE Microwave and Wireless Components Letters |
| Volume | 29 |
| Pagination | 47-49 |
| ISSN | 15311309 |
| Keywords | Bias voltage, Few-layer graphene, Frequency ranges, Graphene, High resistance, Maximum phase, Microwave devices, Phase Change, Phase shifters, Tunable microwave devices, Tunable phase shifters, Voltage-controlled |
| Abstract | This letter presents a voltage-controlled tunable phase shifter based on few-layer graphene. The phase shifter consists of a stub-loaded line, composed of a microstrip line with a stub attached to it through a taper and graphene pad. The bias voltage applied to the graphene pad determines a variation of graphene resistance, which eventually causes the phase change. Without any voltage bias, graphene exhibits high resistance, thus isolating the stub and leading to a low phase shift. As the bias voltage is increased, graphene resistance is lowered, the effect of the stub is more pronounced, and the phase shift is increased. A prototype operating in the frequency range from 5 to 6 GHz has been designed and tested. The measured maximum phase shift obtained is 40°, and the corresponding degradation of the insertion loss is 3 dB. © 2018 IEEE. |
| Notes | cited By 20 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057839188&doi=10.1109%2fLMWC.2018.2882309&partnerID=40&md5=773f24141cf2a270fc5f7a9581c521f6 |
| DOI | 10.1109/LMWC.2018.2882309 |
| Citation Key | Yasir201947 |
