SCSTR

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The introduction of Solid-State Cavity Spatial Tuneable Reflector (SCSTR) technology has opened up a potential application field for a range of industries. This technology involves using three-dimensional cavities, either with or without mechanical vibration, to reflect electromagnetic waves, which opens up various possibilities for the development and optimization of industrial processes. In this article, we will look at the application field and working principle of SCSTR technology.

One of the common applications of SCSTR technology is in barcode scanning. This involves the use of a three-dimensional cavity containing three layers of reflectors. The first layer is a multilayer stack, where the total stack has a width of a few hundred nanometers, and is composed of alternating layers of different materials with different conducivities. The second layer is a wire mesh or metal absorptive layer, and the third layer is an optically transparent material. This three-layer stack is then slightly vibrated or rotated to cause constructive and destructive interference of the reflected electromagnetic waves, allowing for the detection and decoding of barcodes.

Another application of SCSTR technology is in satellite communication. A three-dimensional cavity, analogous to that used in barcode scanning, is used to reflect incoming microwave signals from satellites. The cavity is tuned using mechanical vibration or rotation of the layers to selectively reflect a desired signal. The signal is then passed to ground receivers for processing. This technology is advantageous as it allows for the selective reflection of satellite signals from specific angles, which helps eliminate interference.

The working principle of SCSTR technology is relatively simple. When an electromagnetic wave enters the cavity, it is absorbed and reflected by the three layers within. The reflection of the wave depends on the properties of the layers; for example, the wave will be reflected if it is of the same frequency as either of the two material layers. By controlling the frequency of the wave entering the cavity, one can control how the wave is reflected, and thus what type of signals are allowed and blocked.

The use of SCSTR technology is increasing in a range of different industries, due to its ability to selectively reflect or block certain signals. This technology is useful for signal filtering, barcode scanning, satellite communication, and other applications that require the selective filtering of electromagnetic waves. By understanding the application field and working principle of SCSTR technology, we can better appreciate its potential applications.

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