… Here, we report a low-profile planar acoustic antenna to modulate wavefronts emitted from a
… This antenna can open new routes to highly integrated spiral sound emitters that are critical …

… cavities and in designing on-chip optical antennas. Directional optical antennas are at the
heart of … (28,29) In the past, structures with the optical properties of a directional antenna have …

… [21] investigated a joint optimization problem on relay node placement and route … antenna
setting as BAPS-O while using BAPS-D to represent BAPS under directional antenna. All the …

… 23.55 GHz to enable stable route traffic via intraplane and interplane neighboring satellites
[30–32]. … using a single rotary actuator compared to the use of neutrally elastic tape-springs. …

… The elastic deformation energy stored in the mechanical … is related to the length, elastic
modulus, and thickness of the … have recently emerged as prototypical routes for fabricating a new …

… This research offers a route for engineering the hierarchies of TIs in 3D elastic wave …
directional antennas [31,32], and topological rainbow trapping [33]. In particular, for the 2D …

… Such a topological elastic antenna can efficiently and robustly control elastic waves at a
subwavelength scale that is desirable for the design of compact communication devices. …

… direction before collapsing. Micro-vibrational excitation triggers nonlinear jump phenomena
and the period-doubling route … space boom or antenna applications, the elastic stability limit …

… to the antenna to achieve multi-directional beam deflection with negligible effect on the
antenna's … Chen, XN Liu, and GK Hu, “An asymmetric elastic metamaterial model for elastic wave …

… Based on the designed RPMA array prototype, the directional communication is realized
at a distance of 5 m across concrete walls. This work paves the way for directional …