Ultra‐wideband linearly polarised planar bowtie array antenna with feeding network using dielectric‐based inverted microstrip gap waveguide. Issue 6 (26th February 2020)

• Record Type: Journal Article
• Authors: Zhang, Tianling; Chen, Lei; Moghaddam, Sadegh Mansouri; Zaman, Ashraf Uz; Yang, Jian
• Is Part Of: IET microwaves, antennas & propagation. Volume 14:Issue 6(2020)
• Page Start: 485
• Page End: 490
• Publication Date: 2020-02-26
• Subjects: antenna radiation patterns -- millimetre wave antenna arrays -- antenna feeds -- planar antenna arrays -- bow‐tie antennas -- microstrip antenna arrays -- dielectric waveguides -- linear antenna arrays -- ultra wideband antennas -- electromagnetic wave polarisation; millimetre‐wave band -- ultra‐wide bandwidth -- feeding network -- dielectric‐based inverted microstrip gap waveguide technology -- 8 × 8 planar array -- total antenna efficiency -- ultra‐wideband linearly polarised planar bowtie array antenna -- tightly coupled bowtie array antenna -- frequency 18.7 GHz to 33.15 GHz; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2019.0810
• Languages: English
• ISSNs: 1751-8725

Abstract

Abstract : A tightly coupled bowtie array antenna at a millimetre‐wave band is presented in the study. The antenna has a simple structure and exhibits a high performance over an ultra‐wide bandwidth. The feeding network is designed by using the dielectric‐based inverted microstrip gap waveguide technology in order to have a compact layout. An 8 × 8 planar array is designed and prototyped. The measured results show that the proposed array has achieved an overall bandwidth of 55.7% from 18.7 to 33.15 GHz. The maximum measured gain is 21.8 dBi at 32.5 GHz, and the total antenna efficiency is above 40% through the whole bandwidth.