This paper presents the design of a dual-band power amplifier (PA) featuring similar performance at 28 GHz and 38 GHz. In new radio (NR) fifth generation (5G) communication system, inter-band carrier aggregation technique is commonly adopted for data rate enhancement. such configuration, operation both bands 5G frequency range 2 (FR2) spectrum often necessary. The stacked-FET topology was mitig...

As 10 Gbit/s long-distance optical communication systems become more and more pervasive, requirements rise relating to increased levels of performance, as well as the miniaturization of key devices that configure such systems. Lithium niobate (LN) modulators are used primarily as optical modulators that change high-speed electrical signals at 10 Gbit/s to optical signals for long-distance commu...

High electron mobility transistors (HEMTs) based on III–V semiconductor materials have been investigated as these devices are scaled down to gate lengths of 120, 90, 70, 50 and 30 nm. A standard Monte Carlo (MC) method coupled with the solution of Poisson’s equation is employed to simulate a particle transport. The average particle velocity and the field–momentum relaxation time are studied in ...

The firstly commercialized millimeter-wave application was the automotive radar, which appeared nearly 10 years ago, for driving safety support. The market size has been growing year by year and is expected to reach a level of around five million units per year in 2016. With the progress in popularity, the radar has been expected to spread even to general cars, therefore, development of lowcost...