Abstract -- This paper presents a transverse, reciprocal, two-port, and nature inspired Ka-band transition design to share electromagnetic energy of rectangular waveguide (RWG) into the microstrip (MS) line at frequency 30GHz. The proposed transition is simple in structure with high performance insertion loss (IL) near to 0.11 dB and return loss more than -32dB. Thus this transition is good candidate to be use for MIC/MMIC based millimeter wave, military and RADAR applications, wireless and satellite communications as a compatible connector. This transition has also provide 780 MHz bandwidth for above said microwave applications at less than -10dB return loss (RL). The excellent impedance matching at design frequency between RWG and MS line is achieved by flaring the MS line one end inside the RWG in  a fishtail shape without need of quarter-wave/tapered/ exponential/ Binomial and multi-section Chebyshev's transformer. The VSWR value is very close to one and latterly, this work presents the exact RLC electrical equivalent model of fishtail transition.

Abstract -- The increasingly aging population requires assistive technologies to stay at home for longer independently while receiving continuous healthcare. The main objective of this project work is to make a robot assistant for supporting elderly people. This design can give the tablet and the water as per the requirement of the person. This system also monitors the heartbeat level and body temperature levels of the aged person to be monitored. A voice processor is used to announce the process that takes place. This fact leads to diverse socio- economic issues like the inability of families and the government to support medical costs and overburdened medical services. In addition, medical advances have led to a longer life expectancy without reducing age-related diseases. As a result, elderly people are forced to live in nursing homes, even when they desire to keep an autonomous and active life. To mitigate these issues, technology may be a cornerstone in assisting and, consequently, allowing elderly people to safely and independently stay at their homes. 

Abstract -  Barrier   lowering   technique   is   proposed   for TFET   to   improve   the   performance.   The   novelty   of  the proposed device is that a p-type silicon layer is place over the channel at drain junction. Technology computer Aided Design (TCAD) simulation is carried out to investigate the proposed device. First, the TCAD simulation is validated with reported data to ensure the simulation is realistic. Using TCAD simulation, energy profile, potential distribution, drain current and transconductance are analysed. From the observation, it is interesting to note that proposed device has improvement in negative gate bias region. Further, the proposed device also exhibits  higher  on-current  and  transconsconductance.  Thus, the proposed device is more suitable for low power analog and digital application.

Abstract -- In the fall of the aging people and paralysis patient always lead to serious health issues as the decline of their physical fitness. Cleavage is the most common slash in fall of an aging people and there is also a certain possibility to get coma, brain trauma, and paralysis patient. About to the fall situations, the fall process is the main source of tear because of the high influence. But sometimes, late medical reclaim may be depressed the situation. That means the faster the reclaim comes, the less threat the aging human beings will face. Thus the paper progress a fall detection system based on a suitable device. The system monitors the movements of human body, recognizes a fall from day to day activities by an effective quaternion algorithm, and automatic sends request for help to the cared with the patient’s location. In the Fall detection algorithms plan based on the option of acceptance features. According the acceptance feature, fall detection algorithms, classified as gateway based and machine learning based. gateway based method, gateway of recognition feature is set by the designer before appeal which makes the algorithm have rapid response and less resource consumption. In the machine learning based design, the grouping of fall and day to day activities is available with the assistance of technologies such as support vector machine (SVM) and neural network.

Abstract -- The wireless communication is revaluating rapidly in recent years. So, as per the comparative study of the different types of antennas, microstrip patch antenna is having more advantages. Even it can provide dual and circular polarizations, wide bandwidth, dual frequency operation, flexibility in feeding line, beam scanning omnidirectional patterning, it is having a variety of feeding technique applicable to them. This Project describes three feeding techniques for the same Dimensional Microstrip Patch Antenna the techniques are Edge feed, Inset feed and coaxial or Probe feed. The analysis was carried out using HFSS software. By changing the position of the feed point, the return loss at the feed point was determined at 2.4GHz and the results were compared with those obtained for coaxial line feed.