Abstract
AbstractUse of millimeter-wave spectrum in 5G result in small cell coverage due to inherent high free-space attenuation. While this contribute to capacity improvement in outdoor, indoor coverage from an outdoor gNodeB (gNB) is still a challenge due to high penetration losses from walls and glasses. This demand either installing indoor small cells for indoor coverage or using a fixed outdoor Customer Premises Equipment (CPE) to act as a 5G -WiFi Gateway. Both these options can be expensive and time consuming due to the installations required by a third party. A low cost rapidly installable 5G extender antenna system is presented in this chapter to enhance the indoor millimetre-wave coverage. The 5G extender is mounted outside a window of the building and a high directivity outdoor antenna in this unit is pointed towards a gNB. A separate indoor antenna unit provides in-building coverage. The transmit/receive signals are amplified and filtered in between the two antenna units to increase signal strength. The architecture of the 5G extender is described and the antenna designs are presented and discussed in detail for the 5G Extender.Keywords5GMillimeter-wave antennasPatch antenna array
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