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Bandwidth enhancement and frequency scanning array antenna using novel UWB filter integration technique for OFDM UWB radar applications in wireless vital signs monitoring

MuhibUr Rahman, Mahdi NaghshvarianJahromi, Seyed Sajad Mirjavadi and Abdel Magid Hamouda

Article (2018)

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Abstract

This paper presents the bandwidth enhancement and frequency scanning for fan beam array antenna utilizing novel technique of band-pass filter integration for wireless vital signs monitoring and vehicle navigation sensors. First, a fan beam array antenna comprising of a grounded coplanar waveguide (GCPW) radiating element, CPW fed line, and the grounded reflector is introduced which operate at a frequency band of 3.30 GHz and 3.50 GHz for WiMAX (World-wide Interoperability for Microwave Access) applications. An advantageous beam pattern is generated by the combination of a CPW feed network, non-parasitic grounded reflector, and non-planar GCPW array monopole antenna. Secondly, a miniaturized wide-band bandpass filter is developed using SCSRR (Semi-Complementary Split Ring Resonator) and DGS (Defective Ground Structures) operating at 3(-)8 GHz frequency band. Finally, the designed filter is integrated within the frequency scanning beam array antenna in a novel way to increase the impedance bandwidth as well as frequency scanning. The new frequency beam array antenna with integrated band-pass filter operate at 2.8 GHz to 6 GHz with a wide frequency scanning from the 50 to 125-degree range.

Uncontrolled Keywords

Electric Impedance; Humans; Microwaves; Monitoring, Physiologic/instrumentation; Radar; Vital Signs; Wireless Technology/instrumentation; DGS (Defective Ground Structures); SCSRR (Semi-Complementary Split Ring Resonator); frequency scanning fan beam array antenna; grounded coplanar waveguide (GCPW); grounded reflector; miniaturized band-pass filter; wide-band applications

Subjects: 2500 Electrical and electronic engineering > 2513 Data communications
2500 Electrical and electronic engineering > 2518 Instrumentation and measurements
2500 Electrical and electronic engineering > 2525 Wireless communication systems
Department: Department of Electrical Engineering
Funders: Qatar National Research Fund (QNRF)
Grant number: 7-1045-2-39
PolyPublie URL: https://publications.polymtl.ca/5102/
Journal Title: Sensors (vol. 18, no. 9)
Publisher: MDPI
DOI: 10.3390/s18093155
Official URL: https://doi.org/10.3390/s18093155
Date Deposited: 16 May 2022 17:15
Last Modified: 11 Apr 2024 06:43
Cite in APA 7: Rahman, M.U., NaghshvarianJahromi, M., Mirjavadi, S. S., & Hamouda, A. M. (2018). Bandwidth enhancement and frequency scanning array antenna using novel UWB filter integration technique for OFDM UWB radar applications in wireless vital signs monitoring. Sensors, 18(9), 3155 (14 pages). https://doi.org/10.3390/s18093155

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