Photolithography allows the construction of arrays with extremely high information content. Because the arrays are constructed on a rigid material (glass), they can be inverted and mounted in a ...

We’ve seen a few H-bridge circuits around these parts before, and here’s another application. This time we have an Old Train Station Clock which has been refurbished after being picked up for cheap at ...

Abstract: This paper presents a high-efficiency reconfigurable antenna array architecture that utilizes varactor diodes for beam steering at 28 GHz. To enable efficient beamforming without increasing ...

Abstract: A dual-band dual-polarization frequency selective surface (FSS) with wide-range flexible band ratio and wide angular stability is proposed. Subwavelength metal walls acted as plate ...

Potential difference (or voltage) is a measure of energy, per unit of charge, transferred between two points in a circuit. A potential difference of 1 volt means that 1 joule of work is done per ...