Dielectric Resonator Antennas for 5G Applications

The development of 5G technologies aimed at increasing data rate of wireless communication networks by a factor of 100 imposes stringent specifications (large bandwidth, high gain, small size and temperature independent performance) on the design of the radio frequency (RF) electronics. Various front-end antenna solutions relying on patch radiating structures have been proposed for millimeter-wave applications. Said antennas are characterized by small size, low weight, and low cost and can be easily integrated on chip. However, because of losses in conductors as well as dielectric substrate materials, these antennas suffer from very low radiation efficiency (< 10 %), low gain (< 0 dBi), and narrowband behavior. The class of Dielectric Resonator Antennas (DRAs) is a promising candidate to replace more traditional and conventional antennas especially at millimeterwave frequencies and beyond. This is mainly attributed to the fact that DRAs do not suffer
from conduction losses and are characterized by high radiation efficiency when excited properly. This whitepaper discusses the use of Dielectric Resonator Antennas for 5G Applications.

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