Diplexer Antenna for 5G Full-duplex Application

Authors

  • Hong Quang Nguyen School of Electrical and Electronic Engineering Hanoi University of Science and Technology, 100000, Vietnam
  • Trong Toan Do Viettel High Technology Industries Corporation Viettel Group, 10000, Vietnam
  • Dinh Hai Truyen Hoang iettel High Technology Industries Corporation Viettel Group, 10000, Vietnam
  • Quoc Cuong Nguyen School of Electrical and Electronic Engineering Hanoi University of Science and Technology, 100000, Vietnam
  • Minh Thuy Le School of Electrical and Electronic Engineering Hanoi University of Science and Technology, 100000, Vietnam

DOI:

https://doi.org/10.13052/2024.ACES.J.390105

Keywords:

Bandstop filter, diplexer antenna, dualband antenna, full duplex, small frequency ratio

Abstract

This work proposes a spiral filter-based diplexer antenna for dual-band full-duplex 5G application in C-band. The shared radiator is formed by a cross-shape Yagi-Uda antenna. The dual-band full-duplex characteristic is obtained by applying a diplexer with two different band-stop filters (BSFs) based on a high-order rectangular spiral-shaped open-stub filter. The proposed diplexer antenna is suitable for modern 5G full-duplex communication system applications with a small frequency ratio and high isolation between two ports by applying a Wilkinson power divider. The diplexer antenna is designed, fabricated, and measured, showing good performance of channel isolations of 27 dB/23 dB and the antenna gain of 4.7 dBi/4.2 dBi at two operation bands from 3.56 GHz to 3.68 GHz and from 3.72 GHz to 3.83 GHz covering the required 100 MHz maximum bandwidth in C-band while its frequency ratio is only 1.04.

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Author Biographies

Hong Quang Nguyen, School of Electrical and Electronic Engineering Hanoi University of Science and Technology, 100000, Vietnam

Hong Quang Nguyen was born in Hai Duong, Vietnam, in 1999. He received his B.Eng. degree in electrical engineering from Hanoi University of Science and Technology (HUST), Hanoi, Vietnam. He is currently a second year master student, major in electrical engineering, Hanoi University of Science and Technology. His current interests include millimeter-wave antennas, bio-based material microwave circuits, and RF energy harvesting.

Trong Toan Do, Viettel High Technology Industries Corporation Viettel Group, 10000, Vietnam

Trong Toan Do was born in Hai Duong, Vietnam, in 1991. He received his Degree of Engineer in electronics and communication engineering from HUST, Hanoi, Vietnam. He has been working for Viettel High Tech RnD from 2014. He is currently a group leader of antenna team in 5G project in Viettel. His current research interests include wideband antennas, array antennas, and 5G beamforming.

Dinh Hai Truyen Hoang, iettel High Technology Industries Corporation Viettel Group, 10000, Vietnam

Dinh Hai Truyen Hoang was born in Ha Tinh, Vietnam, in 1984. He received his Degree of Engineer in electronics and communications engineering from HUST, Hanoi, Vietnam. He has been working for Viettel High Tech RnD from 2010. He is currently a chief technology officer who takes care of 5G projects in Viettel. His current research interests include high speed circuits, RF high power and frequency amplifiers, antennas, array antennas, and 5G beamforming.

Quoc Cuong Nguyen, School of Electrical and Electronic Engineering Hanoi University of Science and Technology, 100000, Vietnam

Quoc Cuong Nguyen received the engineer (1996) and M.S. (1998) degrees in electrical engineering from HUST, and the Ph.D. degree in Signal - Image - Speech - Telecoms from INP Grenoble, France, in 2002. He is a professor at the Department of Automation, School of Electrical and Electronic Engineering (SEEE). His research interests include signal processing, speech recognition, beamforming, smart sensors, and RF communications.

Minh Thuy Le, School of Electrical and Electronic Engineering Hanoi University of Science and Technology, 100000, Vietnam

Minh Thuy Le was born in Vietnam. She received the B.E. and M.S. degrees in electrical engineering from the Hanoi University of Science and Technology (HUST), in 2006 and 2008, respectively, and the Ph.D. degree in optics and radio frequency from the Grenoble Institute of Technology, France, in 2013. She is currently a professor and a group leader of the Radio Frequency Group, School of Electrical Engineering and Electronic (SEEE), HUST. Her current research interests include built-in antennas, antenna arrays, beamforming, metamaterials, indoor localization and RF energy harvesting, wireless power transfer, and autonomous wireless sensors.

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Published

2024-01-31

How to Cite

[1]
H. Q. Nguyen, T. T. Do, D. H. T. Hoang, Q. C. Nguyen, and M. T. Le, “Diplexer Antenna for 5G Full-duplex Application”, ACES Journal, vol. 39, no. 01, pp. 31–38, Jan. 2024.

Issue

2024: Vol 39 Iss 1

Section

General Submission

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