Conference Publications

Permanent URI for this collection

https://hdl.handle.net/20.500.14170/382

Browse

Browsing Conference Publications by Title

  • Publication
    A 3.5 GHz wearable antipodal vivaldi antenna for 5G applications
    (IEEE, 2024-01)
    Sadia Afroz
    ;
    Azremi Abdullah Al-Hadi
    ;
    Surentiran Padmanathan
    ;
    Saidatul Norlyana Azemi
    ;
    Wee Fwen Hoon
    ;
    Bikash Chandra Sahoo
    ;
    Yen San Loh
    ;
    Che Muhammad Nor Che Isa
    ;
    Lun Hao Tung
    ;
    Lai Ming Lim
    ;
    Zambri Samsudin
    ;
    Idris Mansor
    ;
    Soh Ping Jack
    This paper represents a wideband wearable antenna for 5G applications. In this proposed design, an antipodal vivaldi antenna structure is implemented on a polyimide and polyester combined substrate. The 120 × 95 × 0.82 mm3 sized antenna acquired a wide bandwidth of 910 MHz with a realized gain of 5.42 dBi and efficiency of 96 percent.
      10  2
  • Publication
    Compact full flexible vivaldi antenna for 3.5 GHz wearable applications
    (IEEE, 2023)
    Bikash Chandra Sahoo
    ;
    Azremi Abdullah Al-Hadi
    ;
    Saidatul Norlyana Azemi
    ;
    Wee Fwen Hoon
    ;
    Surentiran Padmanathan
    ;
    Sadia Afroz
    ;
    Che Muhammad Nor Che Isa
    ;
    Yen San Loh
    ;
    Muhammad Syahir Mahyuddin
    ;
    Lai Ming Lim
    ;
    Zambri Samsudin
    ;
    Idris Mansor
    ;
    Soh Ping Jack
    In this paper, a compact wearable Vivaldi antenna resonating at 3.5 GHz is proposed for 5G n77, and n78 bands. It is designed upon a flexible polyester substrate having dielectric constant (εr) of 1.34 and loss tangent (tan δ) of 0.005. The antenna parameters were optimized via parametric analyses using CST software with a size of 45 × 45 × 0.4 mm3 (length × width × height). The antenna is evaluated in terms of reflection coefficient, gain, efficiency, radiation pattern, and surface current density. This antenna attained a maximum simulated gain of 4.7 dBi, and an efficiency of 98 % in the resonating band.
      7  1
  • Publication
    Design of beam steering resonator antenna for 5G using switch-coupling parasitic element
    (IEEE, 2024-01)
    T. Poobalan
    ;
    Muzammil Jusoh
    ;
    Mohamed Nasrun Osman
    ;
    Thennarasan Sabapathy
    ;
    A. M. Iqbal
    ;
    Mohammad Kamal Abdul Rahim
    This paper proposed beam steering MIMO antenna for 5G application at 3.5 GHz of mid-band. The beam steering performance is based on the integration of the driven parasitic element and switches. The RT Duroid 5880 is used as substrate with thickness 1.57mm. The geometry of the center rectangular patch antenna to achieve the desired resonance frequency which 3.5GHz. The integration of the HPNP 4005 PIN Diode with the parasitic element is tested which the antenna manages to steer the direction at -30º, 0ºand +30ºwith gain of 6.4dBi. In the proposed design, a simple biasing circuit is employed to control all the PIN Diodes switches. The proposed MMO antenna could be potential for 5G application.
      1  13
  • Publication
    Gain enhancement for wearable 5G antenna on PVA thin film substrate
    (IEEE, 2024-01)
    Amirudin Ibrahim
    ;
    Ahmad Rashidy Razali
    ;
    Muzammil Jusoh
    ;
    Najwa Mohd Faudzi
    ;
    Aiza Mahyuni Mozi
    This paper presents a 5G wearable antenna design using Polyvinyl alcohol (PVA) thin film. The antenna is designed on PVA thin film as substrate with the dielectric and tangent loss of 1.853 and 0.04 respectively. Since the material has high tangent loss, the gain of the antenna will be very low. Hence, impedance matching on the transmission line has been chosen to increase the antenna gain. By this technique the gain has been improved from 1.57 dBi to 2.20 dBi around 40.13% improvement. The S11 also improved from -17.05 dB to -41.25 dB with the impedance matching of 55.5 Ω to 50 Ω respectively.
      1  5
  • Publication
    Hybrid animation: implementation of motion capture
    (IOP Publishing, 2020)
    Syed Muhammad Hazry Asraf
    ;
    Nazreen Abdullasim
    ;
    Rusnida Romli
    In the 21st century, much progress has been made following the industrial revolution 4.0. Therefore, the field of animation has also been injected into technological advances. The transmission of information is difficult to convey accurately and interactively to users. In providing users with more exposure and convenience in a more attractive and convenient way. Therefore, animation and motion capture are the best options for use today. As a result, the results of this project can have a huge impact on the animation industry in making video or animation more interesting.
      8  1
  • Publication
    Radiation pattern reconfigurable MIMO Antenna with practical DC bias network
    ( 2022-01-01)
    Jaya Bharath A/L Gopalakrishnan
    ;
    Thennarasan A/L Sabapathy
    ;
    Muzammil Jusoh
    ;
    Hasliza A Rahim @ Samsuddin
    ;
    Muhammad Ramlee Kamarudin
    ;
    Soh Ping Jack
    This paper presents a radiation pattern reconfigurable (RPR) based multiple-input multiple-output (MIMO) antenna. The proposed antenna operates at 3.5 GHz for all switching conditions with S21 results of less than -20 dB. This work specifically focuses on implementing a practical DC bias network for the previously proposed RPR-MIMO antenna. The DC bias design is crucial where the tilt angle is slightly affected. This could be due to the isolation loss and insertion loss provided by the actual switch; and the DC bias lines that were constructed using a few DC blocking capacitors and RF chokes. Finally, a comprehensive analysis was carried out to examine the beam steering performance of the antenna when implemented with the DC bias network.
      1  31