One-bit digital programmable metasurface based on single-layer printed circuit board

• Main Authors: HE CHONG, HU JIAN, ZHU WEIREN, TIAN JIE, YI GUANLI, LIN JIAN
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2024
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The invention provides a one-bit digital programmable metasurface based on a single-layer printed circuit board, which comprises M * N reflective one-bit single-layer programmable metasurface basic units, and M and N are non-zero positive integers; each basic unit comprises an upper metal layer, a middle dielectric layer and a lower metal layer which are sequentially arranged from top to bottom; the upper metal layer comprises a metal patch with a cross gap, a PIN tube, a voltage bias line and an isolation inductor. A basic unit is only composed of an upper metal layer, a middle dielectric layer and a lower metal layer, a metal backboard is used on the lower surface of the middle dielectric layer, and a metal patch, a PIN tube, a voltage bias line and an isolation inductor are used on the upper surface of the middle dielectric layer. The metasurface realizes control of electromagnetic wave beams under the condition that only a single-layer dielectric substrate is used; the device has the characteristics of si