Investigation and Analysis of High Gain Printed Curved Shape Director-Driven Bowtie Quasi-Yagi Antenna

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2022 by IJETT Journal
Volume-70 Issue-7
Year of Publication : 2022
Authors : Pravin Dalvadi, Amrut Patel
DOI : 10.14445/22315381/IJETT-V70I7P231

How to Cite?

Pravin Dalvadi, Amrut Patel, "Investigation and Analysis of High Gain Printed Curved Shape Director-Driven Bowtie Quasi-Yagi Antenna" International Journal of Engineering Trends and Technology, vol. 70, no. 7, pp. 301-309, 2022. Crossref,

This paper proposes a printed curved shape director-driven bowtie quasi-Yagi antenna for high gain applications. The proposed antenna consists of a bowtie-shaped driven element, curved shape reflector, and directors. A simple microstrip feed line is designed to feed the bowtie-driven element, which provides impedance matching between the coaxial input source and the driven element. The proposed antenna is fabricated on the low-cost Glass Epoxy FR4 substrate of thickness 1.6mm, a dielectric constant of 4.4, and a loss tangent of 0.02. The overall dimension of the proposed antenna is 75mm × 66mm × 1.6mm (0.6λ × 0.528λ × 0.0128 λ). Here, the simulated results have been compared with the measured results, and it has been found that both results are well-matched to each other. The proposed antenna obtained the bandwidth of 400 MHz (2.25-2.65 GHz) for S11 < -10 dB, the gain of about 6.25-7.1dBi, and VSWR < 2 for the entire frequency band. Additionally, it has frontto-back (F/B) ratio > 11 dB and cross-polarization level of < -26dB at 2.4 GHz. This antenna is suitable for industrial scientific and medical(ISM) band in the frequency range of 2.40 - 2.50 GHz, point-to-point communication in various fields, WLAN, RFID, and portable direction finding applications, where high gain with moderate bandwidth is the primary requirement.

Quasi-Yagi antenna, Bowtie, Curved shaped director, Gain, and Bandwidth.

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