Wideband and Dual-polarized Transparent Antenna-on-Display using Via-less and Single-Layer Topology for mmWave Wireless Communication

70‐1: Antenna‐on‐Display (AoD) for Smartphones: Role, Main Requirements, and Promising Antenna Evolution

“…Among the mentioned performance indexes, in general, the band coverage and the polarization capability have clearer and easier criteria for qualification judgment. Consequently, in terms of band coverage and the polarization capability, the AoD-based mm-wave antenna designs keep advancing from single band and single polarization [5], dual band and single polarization, dual band and dual polarization, multi-band/wideband and single polarization [13], to multi-band/wideband and dual polarization [15]. The bands referred follow the licensed band definitions by 3GPP listed above; if both bands n257 and n261 are covered, the performance is deemed as single band because the band n261 in fact falls within the spectrum of band n257.…”

35.1: Promising Integrations of Antenna‐on‐Display (AoD)‐based Millimeter‐wave and Microwave Antennas for Cellular Phones

“…Moreover, the AoD-based antennas can achieve broad spatial coverage of radiation beams to reduce blind zones of wireless communications. Currently, for the cellular phone applications, most available AoDbased designs [1]- [3] are mainly for mmw antennas with less designs [5], [6] for (FR1 [7]) mcw antennas. Nonetheless, in the design [6], both AoD-based mmw or mcw antennas are separate, which will hence unfavorably occupy a large total area when the antennas are deployed on the same display; in this conventional way, the visual, touch, and electromagnetic compatibility (EMC) performance may be severely impacted accordingly due to lots of areas occupied by antennas.…”

“…AoD [1]- [3] is an innovative antenna solution generally attained by attaching a visually invisible thin film carrying antennas (typically in the form of fine metal meshes on a thin film) on the display and under the cover glass of the display as shown in Figure 1 [4]. AoD can enable antennas, especially, the mmw ones, deployed on the displays so that the AoD-based antennas will be seldom blocked by hands and metal when the cellular phones are in main use scenarios to better secure the on-display antenna performance.…”