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Wideband Antenna Design and Integration Challenges for 5G Device

NOV
12
2020
12. NOV 2020

Lecture electronica Conferences > Wireless Congress > Session 9: 5G

12:20-12:45 h | Virtual

A Sub-6Ghz 5G device uses a wide frequency range and due to decreasing device size and increasing complexity adds multiple challenges to antenna design and integration. The device covers cellular bands from 700 MHz LTE to 3,8 GHz 5G. During the design phase it’s important to have a good understanding of the antenna performance of the final product to see if the desired level is achievable. For example, network operators may have tough antenna performance requirements to allow the device to be used in their network. A common mistake is to implement PCB antenna or use an off the shelf chip antenna without taking the whole device into account. Most of the devices are consisting of PCBs, covers, battery, battery wiring and flex cables. All of these parts have to be taken into account at antenna design but also end-use environment and device placement. Otherwise, the antenna performance may be severely deteriorated for example by unexpected resonances from the mechanics. This paper shows the common challenges that come during the antenna integration, for an asset tracker device. Wideband PCB antenna is designed and simulated to show expected performance for a final device. Detailed mechanics is included in the simulation model to demonstrate how strong effect they may have on the antenna performance. Some of the methods to decrease the harmful effects from the mechanics are also presented and discussed. Results show that only part of the performance comes actually from the antenna component and majority of the performance is dependent on other factors than the antenna. This paper is based on actual device design and results. Prototypes will be manufactured and verified in August after holidays. Measurement results are then compared to the simulations and results are discussed also in the paper.

Subjects: Wireless

Speaker: Petri Mustonen (Radientum Oy)

Type: Lecture

Speech: English

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A Sub-6Ghz 5G device uses a wide frequency range and due to decreasing device size and increasing complexity adds multiple challenges to antenna design and integration. The device covers cellular bands from 700 MHz LTE to 3,8 GHz 5G. During the design phase it’s important to have a good understanding of the antenna performance of the final product to see if the desired level is achievable. For example, network operators may have tough antenna performance requirements to allow the device to be used in their network. A common mistake is to implement PCB antenna or use an off the shelf chip antenna without taking the whole device into account. Most of the devices are consisting of PCBs, covers, battery, battery wiring and flex cables. All of these parts have to be taken into account at antenna design but also end-use environment and device placement. Otherwise, the antenna performance may be severely deteriorated for example by unexpected resonances from the mechanics. This paper shows the common challenges that come during the antenna integration, for an asset tracker device. Wideband PCB antenna is designed and simulated to show expected performance for a final device. Detailed mechanics is included in the simulation model to demonstrate how strong effect they may have on the antenna performance. Some of the methods to decrease the harmful effects from the mechanics are also presented and discussed. Results show that only part of the performance comes actually from the antenna component and majority of the performance is dependent on other factors than the antenna. This paper is based on actual device design and results. Prototypes will be manufactured and verified in August after holidays. Measurement results are then compared to the simulations and results are discussed also in the paper.

Speaker,
Radientum Oy

Petri Mustonen

Petri Mustonen

Radientum Oy

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Informations

Speaker,
Radientum Oy

Petri Mustonen
Petri Mustonen

Location

Eingang
Nord-West
ICM
Eingang
Nord
Eingang
West
Atrium
Eingang
Nord-Ost
Eingang
Ost
Conference
Center Nord
Freigelände
C1
C2
C3
C4
C5
C6
B0
B1
B2
B3
B4
B5
B6
A1
A2
A3
A4
A5
A6

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