| Title | Broadband Microwave Attenuator Based on Few Layer Graphene Flakes |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2015 |
| Authors | Pierantoni, L., Mencarelli D., Bozzi M., Moro R., Moscato S., Perregrini L., Micciulla F., Cataldo Antonino, and Bellucci S. |
| Journal | IEEE Transactions on Microwave Theory and Techniques |
| Volume | 63 |
| Pagination | 2491-2497 |
| Keywords | Applied voltages, Experimental evidence, Few-layer graphene, Graphene, Graphene films, Microstrip lines, Nanoelectronics, RF performance, Surface resistivity, Tunable microwave, Variable resistors |
| Abstract | This paper presents the design and fabrication of a broadband microstrip attenuator, operating at 1-20 GHz, based on few layer graphene flakes. The RF performance of the attenuator has been analyzed in depth. In particular, the use of graphene as a variable resistor is discussed and experimentally characterized at microwave frequencies. The structure of the graphene-based attenuator integrates a micrometric layer of graphene flakes deposited on an air gap in a microstrip line. As highlighted in the experiments, the graphene film can range from being a discrete conductor to a highly resistive material, depending on the externally applied voltage. As experimental evidence, it is verified that the application of a proper voltage through two bias tees changes the surface resistivity of graphene, and induces a significant change of insertion loss of the microstrip attenuator. © 1963-2012 IEEE. |
| Notes | cited By 89 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939129829&doi=10.1109%2fTMTT.2015.2441062&partnerID=40&md5=77a9f06a3a99651eb2743215ae936b19 |
| DOI | 10.1109/TMTT.2015.2441062 |
| Citation Key | Pierantoni20152491 |
