# Radiofrequency Performance Analysis of Metal-Insulator-Graphene Diodes
## 4 Conclusions  
A compact model of a metal-insulator-graphene diode calibrated with experimental measurements from fabricated devices was used to evaluate its rectifying figures of merit and project the performance of this device when used as an RF power detector under different conditions, such as various input power levels and operation frequencies. Transient simulations, supported by a reference voltage, enabled accurate evaluation of the output voltage, particularly at low levels of input power. The RF tangential responsivity of the power detector was found to exponentially decrease with frequency. In addition, a quasi-linear relationship between frequency and output voltage was obtained for frequencies between 4 GHz and 6 GHz. This relationship changed when considering the input power; at \(-15\) dBm, the relationship showed no abrupt changes, whereas at 5.5 GHz, an abrupt drop was observed at \(-5\) dBm, and an apparent plateau in the response was observed at 5 dBm. On the other hand, when analyzing the tangential responsivity of the detector without considering the diode's parasitic elements, a significant improvement in its performance was evident at 2.45 GHz, regardless of the input power; however, at lower frequencies, the difference between the ideal and non-ideal cases was only evident at input powers higher than 10 dBm. Additionally, the diode demonstrated a high asymmetry value of 806.6 at 1 V, showing its rectification performance. The nonlinearity value of 6.64 at 0.7 V is comparable with documented results, emphasizing its potential for nonlinear applications such as frequency multipliers or mixers. The results of this work are intended as a guideline to select appropriate conditions for the optimal operation of a MIG diode as a RF power detector.  
Conceptualization, L.P.C.-R. and A.P.-S.; methodology, L.P.C.-R. and A.P.-S.; software, L.P.C.-R., A.P.-S. and F.P.; validation, L.P.C.-R., A.P.-S., and F.P.; formal analysis, L.P.C.-R., M.C.P., and A.P.-S.; investigation, L.P.C.-R., and M.C.P.; resources, L.P.C.-R., E.R.-G., F.G.R., and F.P.; data curation, L.P.C.-R.; writing--original draft preparation, L.P.C.-R., M.C.P., and A.P.-S.; writing--review and editing, L.P.C.-R., M.C.P., A.P.-S., E.R.-G., F.G.R., and F.P.; visualization, L.P.C.-R.; supervision, L.P.C.-R., A.P.-S., E.R.-G., and F.P.; project administration, E.R.-G., F.P.; funding acquisition, E.R.-G., F.P., and F.G.R. All authors have read and agreed to the published version of the manuscript.  
This work is part of the research project CNS2023-143727 RECAMBIO funded by MICI/AEI/10.13039/501100011033 and the European Union NextGenerationEU/PRTR. This work was also supported in part by Secretaria de Ciencia, Humanidades, Tecnologia e Innovacion (Secithti), Mexico through Scholarship No. 1265593; by Consejeria de Universidad, Investigacion e Innovacion de la Junta de Andalucia through the research project P21_00149 ENERGHENE. [PERSON] acknowledges the FFU program from the Spanish Ministry of Science and Innovation (MCIN) with reference FPU21/04904. [PERSON] acknowledges the funding from the R+D+i project A-ING-253-UGR23 AMBITIONS co-financed by Consejeria de Universidad, Investigacion e Innovacion and the European Union under the FEDER Andalucia 2021-2027. This work received additional support from the Direccion de Relaciones Internacionales and the Comision de Operacion y Fomento de Actividades Academicas del Instituto Politecnico Nacional and by Secretaria de Investigacion y Posgrado under the contract SIP/20250027.  
Not applicable.  
The data from this study are available from the authors upon request.  
The authors declare no conflicts of interest.