Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices

This paper presents a simple, compact and low-cost design method that allows one to obtain low-profile multi-band antennas for the overcrowded future generation networks, which are widely versatile and very heterogeneous in the K/Ka bands. The proposed antennas comprise <i>n</i> radiatin...

Full description

Bibliographic Details
Main Authors: Amélia Ramos, Tiago Varum, João N. Matos
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/21/6366
_version_ 1797548541389832192
author Amélia Ramos
Tiago Varum
João N. Matos
author_facet Amélia Ramos
Tiago Varum
João N. Matos
author_sort Amélia Ramos
collection DOAJ
description This paper presents a simple, compact and low-cost design method that allows one to obtain low-profile multi-band antennas for the overcrowded future generation networks, which are widely versatile and very heterogeneous in the K/Ka bands. The proposed antennas comprise <i>n</i> radiating monopoles, one for each of the desired operating frequencies, along with a frequency selective feeding network fed at a single point. This concept enables a single antenna to be shared with different radio-frequency (RF) frontends, potentially saving space. Typically, with <i>n-band</i> structures the biggest challenge is to make them highly efficient and here this is assured by multiplexing the frequency, and thus isolating each of the monopoles, allowing the design of scalable structures which fit the 5G applications. Based on the vision proposed here, a dual-band and a tri-band structures were built and characterized by their main parameters. Both prototypes achieved peak efficiencies around 80%, with adequate bandwidths and gains, as well as great compactness.
first_indexed 2024-03-10T15:00:56Z
format Article
id doaj.art-43f2bcddfac947f3a538bfbcde12c4b7
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-03-10T15:00:56Z
publishDate 2020-11-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-43f2bcddfac947f3a538bfbcde12c4b72023-11-20T20:11:35ZengMDPI AGSensors1424-82202020-11-012021636610.3390/s20216366Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile DevicesAmélia Ramos0Tiago Varum1João N. Matos2Instituto de Telecomunicações, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalInstituto de Telecomunicações, Campus Universitário de Santiago, 3810-193 Aveiro, PortugalThis paper presents a simple, compact and low-cost design method that allows one to obtain low-profile multi-band antennas for the overcrowded future generation networks, which are widely versatile and very heterogeneous in the K/Ka bands. The proposed antennas comprise <i>n</i> radiating monopoles, one for each of the desired operating frequencies, along with a frequency selective feeding network fed at a single point. This concept enables a single antenna to be shared with different radio-frequency (RF) frontends, potentially saving space. Typically, with <i>n-band</i> structures the biggest challenge is to make them highly efficient and here this is assured by multiplexing the frequency, and thus isolating each of the monopoles, allowing the design of scalable structures which fit the 5G applications. Based on the vision proposed here, a dual-band and a tri-band structures were built and characterized by their main parameters. Both prototypes achieved peak efficiencies around 80%, with adequate bandwidths and gains, as well as great compactness.https://www.mdpi.com/1424-8220/20/21/6366frequency multiplexedIoTmillimeter-wavesmulti-bandn-band antennaantenna as a sensor
spellingShingle Amélia Ramos
Tiago Varum
João N. Matos
Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices
Sensors
frequency multiplexed
IoT
millimeter-waves
multi-band
n-band antenna
antenna as a sensor
title Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices
title_full Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices
title_fullStr Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices
title_full_unstemmed Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices
title_short Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices
title_sort compact n band tree shaped multiplexer based antenna structures for 5g iot mobile devices
topic frequency multiplexed
IoT
millimeter-waves
multi-band
n-band antenna
antenna as a sensor
url https://www.mdpi.com/1424-8220/20/21/6366
work_keys_str_mv AT ameliaramos compactnbandtreeshapedmultiplexerbasedantennastructuresfor5giotmobiledevices
AT tiagovarum compactnbandtreeshapedmultiplexerbasedantennastructuresfor5giotmobiledevices
AT joaonmatos compactnbandtreeshapedmultiplexerbasedantennastructuresfor5giotmobiledevices