International Journal of Microelectronics and Digital integrated circuits
Volume 3, Issue 1 (2017)
Published
Table of contents
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Equivalent Circuits For High Frequency Bipolar Transistors
Abstract: Two types of equivalent circuits were considered to represent small signal/linear bipolar transistor behaviour at high frequencies. Elements/Parameters of the equivalent circuits are extracted from measured S parameters using gradient method by Fletcher-Powell. Exact gradients of S parameters were determined by using gradient conversion matrix formula between two-port open circuit impedance parameters and two port scattering parameters. Good agreement between measured and simulated all the four two port S parameters …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 1–9 Read article
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PERFORMANCE COMPARISON OF SIMULATED AND FABRICATED WIDEBAND MINIATURIZED WPD
Abstract: In this paper comparison of result of simulation and fabricated miniaturized Wilkinson Power Divider is proposed. The decay in performance of Wilkinson Power Divider during fabrication process is discussed in detail. Equal splitter Wilkinson Power Divider is designed by using CST MWS software which is very excellent as comparison to other RF design software in present scenario. The fabrication process is adopted by using PCB technology due to ease of …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 10–14 Read article
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Encrypted Visible light communication for optimum performance
Abstract: Visible light communication (VLC) is regarded as the relatively secure communication when compared with other wireless communications using radio frequency (RF). The original visible signal sending from the lamp can be first received by the proposed light encrypter. The information can be encrypted and then emitted. The light encrypter acts as an encryption gateway for signals in the optical domain. The rolling shutter effect of the complementary metal–oxide semiconductor (CMOS) …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 15–22 Read article
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Investigation and Performance of CNT-MOSFET Device Using Quantum-Based Modelling
Abstract: We propose a novel MOSFET design that embodies single wall zig-zag semiconducting carbon nanotubes (CNT) in the channel, as shown in Figure 1. Investigations show that CNTs have high low-field mobilities, which can be as great as 2×105 cm2/Vs. Thus, we predict that MOSFET performance can be improved by embedding CNTs in the channel. To investigate performance of the new CNT-MOSFET device, we develop a methodology that connects CNT modeling …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 23–36 Read article
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Hybrid Pi-Fuzzy speed controller for interior permanent magnet Synchronous Motor
Abstract: Interior Permanent Magnet Synchronous Motors (IPMSM’s) are used for fast torque response and for better performance of the machine. IPMSM's are used in low and mid power applications such as computer peripheral equipments, robotics, adjustable speed drives and electric vehicles and in servo applications. In this paper, a simulation model has been developed for speed control and improvement in the performance of a closed loop vector controlled IPMSM drive which …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 3, Issue 1, 2017 · pp. 37–53 Read article