This paper presents an overview on the approaches and methodologies that were reported so far in modelling millimeter-wave CMOS active device. The paper begins by highlighting the limitations of the existing CMOS model provided by the foundry. Next, the performance metrics of millimeter-wave CMOS active device is described in brief. Then, the device modelling process for the active device which covers on the design of its test-structures, on-wafer measurement, device characterization and model generation were described. Finally, the current and future trends of mm-wave CMOS transistor are discussed. Device modelling or characterization is the first step involved in designing mm-wave CMOS circuit blocks thus accurate model for active device is required to ensure the success fullness in implementing the circuits.

Self-concept is an important aspect of personality development. Every individual will strive to reach an ideal self. Self-concept is essentially a mental picture of viewing at self. To enable an individual to understand oneself, self-evaluation and reflection is required. This exercise is being undertaken by children as well as adolescent in search of their personal and social identity. The present self has a direct bearing in the future self. To understand the self-concept of higher secondary students the present study is undertaken. Five (5) schools comprising of 150 higher Secondary Students were taken as sample for the study. The tool used is a standardised tool known as Self-concept Questionnaire (SCQ) developed by Saraswat, R. K. (1992). On analysing the data it was found that the higher secondary students had Average Self-concept (90.7%) which shows that the students are aware of their self. Also, irrespective of the gender and stream of study at the higher secondary level, the students are having Average Self-concept.