Vol. 96

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2021-02-08

Extremely Close Integration of Dual Band Sub-6 GHz 4G Antenna with Unidirectional mmWave 5G Antenna

By Shakeel Ahmad Malik, Khalid Muzaffar, Ajaz Hussain Mir, and Ayaz Hassan Moon
Progress In Electromagnetics Research Letters, Vol. 96, 73-80, 2021
doi:10.2528/PIERL20122106

Abstract

An extremely close integration of a dual band sub-6 GHz 4G antenna with a 28 GHz 5G antenna is proposed in this article. Firstly, a dual band 4G LTE (Long term Evolution) antenna is designed on an inexpensive substrate. The proposed antenna operates in the 2.5 GHz and 3.5 GHz LTE bands. The antenna has dimensions of 63 x 5.6 x 0.5 mm3, indicating an electrically small design. As the width of the antenna is less than 7 mm, it could be easily mounted on commercial mobile devices. The patterns for both the bands are almost omnidirectional as desired by the low frequency antennas. The proposed antennas do not carry any additional miniaturization or tuning circuitry hence simplifying fabrication process. Secondly, an angled dipole with Yagi topology is proposed, which works in the 28 GHz mmWave 5G band. The angled dipole has dimensions 28.3 x 5.6 x 0.5 mm3, which is also electrically compact and has a high front to back ratio. The microwave and millimetre wave antennas are placed orthogonally for minimal mutual coupling. The characteristics of both the antennas are not affected by the presence of the other element. Detailed results are shown in this article.

Citation


Shakeel Ahmad Malik, Khalid Muzaffar, Ajaz Hussain Mir, and Ayaz Hassan Moon, "Extremely Close Integration of Dual Band Sub-6 GHz 4G Antenna with Unidirectional mmWave 5G Antenna," Progress In Electromagnetics Research Letters, Vol. 96, 73-80, 2021.
doi:10.2528/PIERL20122106
http://jpier.org/PIERL/pier.php?paper=20122106

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