http://ei.sinaweb.net/ Electronics Industries en daily 1 Sat, 21 Jan 2023 00:00:00 +0330 Sat, 21 Jan 2023 00:00:00 +0330 http://ei.sinaweb.net/article_591635.html In this paper, analysis and design of a mm-wave distributed frequency doubler utilizing four push-push pairs in 65 nm CMOS is studied. In the proposed circuit, “gate transmission-line characteristic-impedance tapering technique” is introduced and analyzed to increase output power and efficiency of the frequency doubler. Using simulation, the impact of increasing the input voltage amplitude on improving the second harmonic power and efficiency for each frequency doubler unit cell is shown. In order to increasing the input voltage amplitude of the unit-cells, the characteristic impedance of the gate transmission-line is gradually increased. Utilizing this technique improves the output power by 6 dB. Holistic Electromagnetic simulation of the circuit, gives output power greater than -5 dBm in 60 GHz to 214 GHz band for an input power of 12 dBm and 24 mW power consumption. Keywords: Distributed frequency multiplier, push-push pair, Marchand balun, CMOS Technology , mm-wave signal generation, power efficiency http://ei.sinaweb.net/article_591636.html Decision making is a cognitive process in which an option is selected from among the available options based on the values and preferences of the decision maker. Investigating how different people make decisions in various situations, how decision-making is influenced by other cognitive processes such as emotions, memory, cognitive functions, etc., in general, knowing this process as well as possible will contribute to the better quality of decisions. Since man is a social being, his decisions are also affected by environmental conditions, beliefs and actions of other people. Among the effective criteria in decision-making in the context of society, we can mention social learning parameters and their impact on decision-making. In this research, the impact of social learning criteria (novelty, pleasure motivation and imitation) on the decisions made has been investigated and a comparison has been made between the impact of each of these parameters. The results of this research show the effect of the imitation parameter. It has been stronger in the decisions made than other parameters.