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Author: search.filters.author.Hidayat, Risanuri

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    OTA-Based high frequency CMOS multiplier and squaring circuit
    (2009-01-01)
    Hidayat, Risanuri
    ;
    Dejhan, Kobchai
    ;
    Moungnoul, Phichet
    ;
    Miyanaga, Yoshikazu
    A gigahertz analog multiplier based on OTA and squaring is proposed. The multipliehas gigahertz frequency response is suitable to use in communication system. The circuitisbased on 0.18 pm CMOS technology simulated using PSPICE level 7. This technique provides;wide dynamic range, GHz-bandwidth response and low power consumption. The proposed circuithas been simulated with PSPICE and achieved -3dB bandwidth of 3.96GHz. The total power dissipation is 0.588mW with ±1V power supply voltages.
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    A GHz simple CMOS squarer circuit
    (2008-12-01)
    Hidayat, Risanuri
    ;
    Dejhan, Kobchai
    ;
    Moungnoul, Phichet
    ;
    Miyanaga, Yoshikazu
    A simple CMOS squarer circuit is proposed. The circuit has a Giga Hertz frequency response that has advantages to be used in communication systems. The proposed circuit focuses on the extension to ultra wide bandwidth. The circuit is based on 0.18 urn CMOS technology simulated using PSPICE level 7. The circuit has wide dynamic range, GHz-bandwidth response and low power consumption. The proposed circuit has been simulated with SPICE and achieved -3dB bandwidth of 10.96GHz. The power consumption is about 86.5uW with a ±1V power supply voltage. Simulation result shows that the proposed squarer can accommodate the whole UWB bandwidth. © 2008 IEEE.
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    A 0.18 μm CMOS Gaussian monocycle pulse circuit design for UWB
    (2006-12-01)
    Hidayat, Risanuri
    ;
    Dejhart, Kobchai
    ;
    Moungnoul, Phichet
    ;
    Miyanaga, Yohikazu
    This paper proposes a new method of monocycle pulse generation by generating the Gaussian pulse, and generate first derivative of the pulse to get a Scholtz's monocycle pulse. The simulation result of the generation is based on 0.18 μn CMOS technology which achieved using HSPICE (Level 49). The Gaussian pulse is generated by using CMOS inverter of which is applied the delay time to perform the Gaussian pulse. ©2006 IEEE.