A design method of reconfigurable single-layer reflective orbital angular momentum (OAM) antenna is presented in this paper. Varactor diodes are utilized to control the phase characteristics of the ...

Lead-halide perovskite nanocrystals (NCs) are promising for fabricating deep-blue (<460 nm) light-emitting diodes (LEDs), but their development is plagued by low electroluminescent performance and ...

The series resistance of a high-quality varactor diode is primarily determined by the resistance of the semiconductor material close to the junction. With increasing reverse bias, the width of the ...