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Detection of low-reflectivity objects can be improved by the so-calledquantum illumination procedure. However, quantum detection probabilityexponentially decays with the source bandwidth. The Josephson ParametricAmplifiers (JPAs) technology utilized as a source, generating a pair ofentangled signals called two-mode squeezed vacuum states, shows a very narrowbandwidth limiting the operation of the microwave quantum radar (MQR). In thispaper, for the first time, a microwave quantum radar setup based on quantumillumination protocol and using a Josephson Traveling Wave Parametric Amplifier(JTWPA) is proposed. Measurement results of the developed JTWPA, pumped at 12GHz, show an ultrawide bandwidth equal to 10 GHz at X-band making our MQR apromising candidate for the detection of stealth objects.

Microwave Quantum Radar using a Josephson Traveling Wave Parametric Amplifier