Sohiful Anuar Zainol Murad
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Preferred name
Sohiful Anuar Zainol Murad
Official Name
Sohiful Anuar, Zainol Murad
Alternative Name
Murad, S. A.Zainol
Murad, S. A.Zainol
Anuar, Zainol Murad Sohiful
Zainol Murad, S.A.
Sohiful, Z. M.A.
Main Affiliation
Scopus Author ID
16643180100
Researcher ID
I-1082-2019

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  • Publication
    Design and characterization of a 3.5 GHz CMOS power amplifier for low-band 5G applications
    (Taylor and Francis Ltd., 2025)
    Ahmad Fariz Hasan
    ;
    Sohiful Anuar Zainol Murad
    ;
    Faizah Abu Bakar
    ;
    Rohana Sapawi
    A 3.5 GHz CMOS power amplifier (PA) designed for 5G applications is presented in this study, utilizing the 0.18 µm RF CMOS process technology. The circuit architecture comprises two stages: the first stage employs a cascode topology with a negative voltage applied to the transistor body technique to achieve sufficient gain and minimize current, thereby reducing power consumption. In the second stage, to ensure high efficiency, a class-E amplifier is being used. Measurement results indicate a power gain (S21) of 17.2 dB, a power-added efficiency (PAE) of 45.6% and a saturated power (Psat) of 8.5 dBm, obtained at 3.5 GHz. These findings validate the suitability of the proposed design at low-band frequency for 5G applications. The chip area for the proposed design is 2.45 mm². The discrepancy between simulation and measurement is due to the parasitic in the layout design.
  • Publication
    Design of 3.1-10.6 GHz UWB CMOS Power Amplifier using Cascade Topology
    ( 2023)
    Rohana Sapawi
    ;
    Dayang Halimah Abang Mohamad
    ;
    Kuryati Kipli
    ;
    Kismet Hong Ping
    ;
    Norhuzaimin Julai
    ;
    Sohiful Anuar Zainol Murad
    ;
    Dayang Nur Salmi Dharmiza Awang Salleh
    ;
    Dayang Azra Awang Mat
    ;
    Shamsiah Suhaili
    ;
    Asrani Lit
    Power amplifier is an important component in the wireless communication system. Design of the power amplifier in UWB transceiver is challenging as the signal need to be transmitted over a wide bandwidth. Several criteria need to be fulfilled such as good linearity, good wideband matching, high efficiency and low power consumption. This paper presents the design of a power amplifier with 3.1-10.6 GHz using 0.18 μm CMOS technology for ultra-wide band application. The proposed power amplifier used three cascaded amplifier stages in order to achieve good gain and wide-band width. The results show that the proposed power amplifier design has an average gain of 7.28 dB, an input return loss less than-7.48 dB, an output return loss less than-4.782 dB, and group delay variation of ±151.9 ps is achieved over the entire band. A good input 1dB-compression point of 6.67 dBm and input third order intercept point of 0 dBm is achieved at 5 GHz.
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