The present invention discloses a
microwave photonic
broadband radar imaging
chip, and belongs to the integrated
microwave photonic technology field. According to the present invention, by a photonicIntegration technology, the emission end and the reception end of a
microwave photonic
broadband imaging
radar are integrated in the same
chip, the
chip is integrated with the following photonic assemblies of a
semiconductor laser, a first 1*2
optical coupler, a Mach-Zehnder modulator, an
optical attenuator, an optical phase shifter, a 2*1
optical coupler, a second 1*2
optical coupler, an emissionend photoelectric
detector, a phase modulator and a reception end photoelectric
detector, and the photonic assemblies are connected via the optical waveguides. The present invention also discloses amicrowave photonic
broadband radar imaging
system. According to the present invention, a high-frequency broadband linear
frequency modulation emission
signal of the broadband imaging radar can be generated in the optical domain, and an echo can be demodulated to an
intermediate frequency or a base band by utilizing a
microwave photonic frequency mixing technology, so that the real-time processingof the high-resolution target imaging can be realized. The
microwave photonic broadband
radar imaging chip and the
microwave photonic broadband
radar imaging system of the present invention have theadvantages of being small in size, high in integration degree, good in stability and low in cost, etc.