@conference{10902/11466, year = {2016}, url = {http://hdl.handle.net/10902/11466}, abstract = {In this paper, class-E power amplifiers (PAs) and rectifiers, operating at UHF band, are properly integrated in efficient AC-to-RF and RF-to-AC converters for their use in 50/60 Hz wireless power transmission (WPT). Slightly modifying a center-tap full-wave rectifier, it is proved that a 915 MHz frequency carrier may be high-level amplitude modulated by each of the semi-cycles of the utility waveform. Assuming those components are transmitted by means of orthogonal antenna polarizations, the high-fidelity recovery of both semi-sinusoids in the remote position is also demonstrated, to be stepped-up and combined at the ∆ port of an additional center-tap transformer. GaN HEMT packaged devices were selected for the designed PAs, while Schottky diodes for the rectifiers, resulting in average efficiency figures of 83.3% and 75.4%, respectively.}, organization = {The authors would like to thank the Ministry of Economy and Competitiveness by the financial support provided through projects TEC2014-58341-C4-1-R and TEC2014- 58341-C4-2-R, co-funded with FEDER. José R. PérezCisneros also thanks the support to his stay at the Univ. of Cantabria provided by the pre-doctoral mobility grant EEBBI-15-10447.}, publisher = {IEEE}, publisher = {IEEE MTT-S International Microwave Symposium (IMS), San Francisco, 2016, 515-518}, title = {Class-E power converters for AC (50/60 Hz) wireless transmission}, author = {Pérez Cisneros, José Ramón and Ruiz Lavín, María de las Nieves and Lobeira Rubio, Manuel and Brañas Reyes, Christian and Mingo Sanz, Jesús de and García García, José Ángel}, }