Tunable Dual - Band RF Exciter-Receiver Design For Realizing Photonics Radar

Traditionally, radars employed electronic technologies which comes with limited bandwidth, low speed, poor resolution which makes them inadequate for today’s low level and small RCS targets. To deal with the challenges photonics-based technologies are evolving with features such as broad bandwidth, fast signal processing, low loss transmission, high phase stability, multidimensional multiplexing and more. Microwave phonics are using the stable optical sources for optical generation along with optical to electrical (OE) and electrical to optical (EO) and hence presenting a bandwidth of several gigahertz which ultimately improves the resolution. This work is based on a research to simulate a trans receiver of a photonics radar using Mach-Zehnder Modulator for frequency multiplications and effectively demonstrating the ability to provide higher bandwidth which subsequently improve he resolution and performance of radar as compared to traditional ones. All the components of optical chain are analyzed vis-a-vis electronic counterparts. Optisystem 15 software is utilized to simulate the proposed transmission circuit behavior with varying the various parameters and path is paved for its realization in laboratory. The aim of project to simulate and compare the results claimed by authors and try to set a base for realizing a radar in laboratory.