A continuous-substrate process forms dipole antennas and back-side sub-elements by cutting metal foil, reducing RFID inlay production cost and steps.
A half-sheath dipole with oversized spherical electrodes and low-conductivity sheath material improves transmission through lossy media.
DC-biased varactor comb unit cells create a programmable reflection phase gradient, steering reflectarray beams widely without phased-array complexity.
A curved 3D radiating element on a hemispherical support improves omnidirectional coverage at low attenuation and above background noise.
A passive structure between stacked radiating elements adds phase delay to widen impedance bandwidth while preserving antenna directivity.
Folded conductors with reflector and director sections improve directive radiation power and extend coverage across VHF, UHF, and lower VHF bands.
DC-biased varactor diodes in comb-shaped reflectarray cells replace phase shifters, enabling precise wide-angle beam steering with lower complexity.
Orthogonal feed directions and liquid crystal phase shifters simplify dual-polarized antenna layout while preserving phase control.
A transmitter unit sends ultra-wideband signals through pipeline walls to detect soil interfaces.
A planar optoelectronic device divides an optical beam into elementary beams to drive series-connected photodiodes forming a radiating antenna.
Segmented symmetrical v-shaped antenna design minimizes detuning from metals and liquids, ensuring reliable read ranges.