Sapphire Stacked Rectangular Dielectric Resonator Aperture Coupled Antenna for C-Band Applications

Miniaturized Meander-Line Dipole Antenna For Short-Range Wireless Communication Networks

“…For instance, an infrared transparent millimeter wave antenna on a sapphire substrate was presented in [4]. Another work on a sapphire-based antenna was reported in [5], where a stacked rectangular dielectric resonator aperture coupled antenna was designed for the C-band applications. In [6], an on-chip miniaturized antenna is proposed on a sapphire substrate for implantable wireless medical systems.…”

Two-Layer Sapphire Rectangular Dielectric Resonator Antenna for Rugged Communications

“…Therefore, because of sapphire's lot of merits namely robustness, light transmission, thermal insulation, sapphire can be used to design an antenna [10]. The literature review [11][12][13][14][15][16][17][18][19][20][21][22] shows that materials used for DRAs so far are thermoset microwave material which is a ceramic thermoset polymer. In the microwave region, the losses in the ceramic material increase because of interaction among the applied field and phonons which leads to the damping of the optical lattice vibrations, in turn, causing a dielectric loss.…”