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Open AccessArticle

Broadband High-Gain Antenna for Millimetre-Wave 60-GHz Band

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KACST-TIC in Radio Frequency and Photonics for the e-Society (RFTONICS), Electrical Engineering Department, King Saud University, Riyadh 11421, Saudi Arabia
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Laboratory of physics of materials-Structures and properties, Computer Department, Faculty of Sciences of Bizerte, University of Carthage, Carthage 1054, Tunisia
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Department of Electrical Engineering, King Saud University, Riyadh 11421, Saudi Arabia
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Author to whom correspondence should be addressed.
Electronics 2019, 8(11), 1246; https://doi.org/10.3390/electronics8111246
Received: 18 September 2019 / Revised: 25 October 2019 / Accepted: 25 October 2019 / Published: 31 October 2019
(This article belongs to the Section Microwave and Wireless Communications)
This paper focuses on the 60 GHz band, which is known to be very attractive for enabling next-generation abundant multi-Gbps wireless connectivity in 5G communication. We propose a novel concept of a double-layer antenna, loosely inspired from standard log-periodic schemes but with an aperiodic geometry, reduced size, and a limited number of elements while achieving excellent performance over the entire 60 GHz band. To maximize the antenna’s efficiency, we have developed a design that differs from those traditionally used for millimeter-wave communication applications. We aim to simultaneously maximize the gain, efficiency, and bandwidth. The reflection coefficient of the proposed design achieves a bandwidth of 20.66% from 53.9 GHz up to 66.3 GHz, covering the entire frequency band of interest. In addition, this proposed structure achieves a maximum realized gain of 11.8 dBi with an estimated radiation efficiency of 91.2%. The proposed antenna is simulated, fabricated, and tested in an anechoic chamber environment. The measurement data show a reasonable agreement with the simulation results, with respect to the bandwidth, gain, and side-lobe level over the operational spectrum. View Full-Text
Keywords: 60 GHz; high efficiency; millimeter-wave antenna; dipole 60 GHz; high efficiency; millimeter-wave antenna; dipole
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MDPI and ACS Style

Issa, K.; Fathallah, H.; Ashraf, M.A.; Vettikalladi, H.; Alshebeili, S. Broadband High-Gain Antenna for Millimetre-Wave 60-GHz Band. Electronics 2019, 8, 1246.

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