Ultra-Wideband Millimeter-wave Planar Array Antenna with an Upside-down Structure of Printed Ridge Gap Waveguide for Stable Performance and High Antenna Efficiency
Journal article, 2021
In this letter, a wideband millimeter-wave planar array antenna with a printed ridge gap waveguide (PRGW) feeding network is presented. A planar bowtie antenna fed by the PRGW is employed as the array radiation element which combines the bowtie with an upside-down electromagnetic bandgap (EBG) part by using lamination. Thus, with this new upside-down structure the proposed array antenna achieves a stable, wideband and high-antenna-efficiency performance. A prototype of "8""8" element array is fabricated and measured. The measured results show that the proposed array has an impedance matching bandwidth (S11-10 dB) of 50.3% from 18.6 to 31.1 GHz. The maximum measured gain is 22.1 dBi at 29 GHz, and the total antenna efficiency is above 60% with a bandwidth of 45% from 18.8 to 29.8 GHz.
Antenna measurements
Antenna arrays
Substrates
Periodic structures
Wideband
Planar arrays
Metals
millimeter-wave
printed ridge gap waveguide
planar array antenna
Metamaterials
Author
Tianling Zhang
Xidian University
Lei Chen
Xidian University
Ashraf Uz Zaman
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Jian Yang
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
IEEE Antennas and Wireless Propagation Letters
1536-1225 (ISSN) 15485757 (eISSN)
Vol. 20 9 1721-1725 9477072Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
Communication Systems
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/LAWP.2021.3095124