Studying the Noise Performance of CORPS Beam Forming Networks

Noise Cancellation Effects in Integrated Photonics with Wilkinson Power Dividers

“…Our analysis aims to clarify the physical origin of the thermal noise in SOI-WPDs and the properties of the generated noise signals. Although the impact of thermal radiation is low in the laboratory conditions of the SOI wavelength band, this study is relevant as the environmental and temperature conditions worsen in real applications, when the intensity of the input signal decreases to the minimum, as in quantum devices, or when other wavelength ranges are explored, such as midrange infrared for sensing applications. , We believe that our analysis also provides a clearer picture of known configurations of WPDs and recent reports of the enhancement of the SNR in receiving antenna arrays . Moreover, our analysis extends to network architectures that are of much interest to integrated photonic systems, including ring-resonator amplifiers with an improvement in the SNR directly proportional to the number of WPD-ports.…”

“…20,36 We believe that our analysis also provides a clearer picture of known configurations of WPDs and recent reports of the enhancement of the SNR in receiving antenna arrays. 17 Moreover, our analysis extends to network architectures that are of much interest to integrated photonic systems, including ring-resonator amplifiers with an improvement in the SNR directly proportional to the number of WPD-ports.…”

“…Wilkinson power dividers (WPDs) are lossy reciprocal devices with a 1 × N port configuration, characterized for having all their N + 1 ports matched (no reflections) and having N mutually isolated ports. , WPDs provide functionalities of power division/combination , as well as coherent perfect absorption (CPA). − The lossy character of WPDs plays a fundamental role on their mode of operation, since their matching and isolation properties are ultimately enabled by the dissipation of unwanted signals in resistor elements. , WPDs are widely used at RF and microwave frequencies for communication and sensing applications, being a common component of transceivers, transistors, modulators, and phased arrays. − Due to their ability to cover multiple frequency bands, they have been deployed in 5G and satellite communication infrastructures. − In addition, WPDs have been used in networks of amplifiers, , using paralleled configurations to increase their dynamical range. Recent reports also suggest that WPDs might increase the SNR of beam-forming networks …”

“…Recent reports also suggest that WPDs might increase the SNR of beam-forming networks. 17 While the excellent properties of WPDs have been extensively exploited in RF and microwave technologies, similar concepts could be adapted to other technological platforms. For example, integrated photonics is a rapidly growing field with an increasingly dominant role in communication, sensing and LIDAR, computing, and quantum technologies as well as in neural networks and artificial intelligence.…”