The differences in drain current and drain voltage characteristics of top gate and bottom gate Organic Thin Film Transistor (OTFT) structures are analyzed by two dimensional numerical device simulators. Further discussion shows different characteristics parameters of OTFTs. Transistor based on organic semiconductor (conjugated or conducting polymers) as active layer to manage electric current flow is known as OTFTs. The performance parameters of OTFTs are evaluated from output and transfer characteristics of different structures of OTFTs. Device characteristics parameters have been evaluated in terms of drain current, mobility, on/off current ratio, threshold voltage, subthreshold slope and transconductance. OTFTs are considered as promising device for future development of their various applications in the areas of low-cost and large-area electronics. Further this paper thoroughly discusses the overall performance and applications of OTFTs in various fields.

The recent years have seen an unprecedented increase in the demand for superior performance of radar signal processor. The main challenge in a radar system is to maintain the probability of a false alarm rate constant even under an uncertain time-varying clutter environment. The objective of this paper is to develop a method for enhanced clutter/interference suppression by redesigning the radar detector in such a way to emphasize the target response and de-emphasize the clutter response. To achieve this, we have proposed a hardware architecture that implements least mean square algorithm-based adaptive filter along with a constant false alarm rate (CFAR) technique for the purpose of better detection of target under a non-homogeneous clutter environment. An adaptive design of the CFAR-filter technique has been used to improve probability of detection by increasing signal-to-noise ratio. The efficacy of the proposed architecture is corroborated with MATLAB simulations and hardware synthesis.