A common sight in ‘smart homes’, door sensors allow you to detect whether a door is closed or open, enabling the triggering of specific events. Unfortunately, most solutions for these ...

Abstract: An active microwave sensor system, which is based on a differential coupled-line, is proposed. The sensor comprises a differential coupled-line, as well as RF circuits. The coupled-line with ...

Arduino test code is run to see if the sensors are working properly, with built-in LED flashing when the sensor is triggered, ...

Microwave photonics is the practical application of electromagnetic waves with a wavelength between one millimetre and one meter. Microwaves are important for communications, and systems for detecting ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

Abstract: This article proposes a dual-mode microstrip sensor based on a bridge-type folded complementary split-ring resonator (BF-CSRR) structure. The sensor combines high sensitivity with low cost ...