Search Results - Xinhuan Feng
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Broadband Microwave Photonic Sub-Harmonic Downconverter with Phase Shifting Ability
Published 2017-01-01Get full textA microwave photonic signal processor that is capable of simultaneously realizing sub-harmonic frequency down conversion and IF signal phase shifting operation is presented. The IF signal generated by the frequency down conversion process is obtained by the beating of the second-order local oscillat...
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Photonics Based Microwave Hybrid Coupler With Tunable Coupling Ratio and Phase Difference
Published 2018-01-01Get full textA new microwave hybrid coupler that solves the problems of limited bandwidth and reconfigurability in conventional couplers, is presented. It is based on a bi-directional operating optical phase modulator and an optical signal processor to control the amplitude and phase of the phase modulated optic...
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Broadband Photonic Microwave Signal Processor With Frequency Up/Down Conversion and Phase Shifting Capability
Published 2018-01-01Get full textA new dual-function photonic microwave signal processing structure that has the ability to realize both frequency up/down conversion and RF/IF phase shifting, is presented. In the proposed signal processor, a dual-polarization dual-parallel Mach Zehnder modulator (DP-DPMZM) is...
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Photonics-Based Wideband Microwave Phase Shifter
Published 2017-01-01Get full textA wideband microwave photonic phase shifter implemented based on a special dual-parallel Mach–Zehnder modulator (DP-MZM) consisting of two sub-MZMs and a polarization rotator is proposed and demonstrated. A microwave signal to be phase shifted is applied to the two sub-MZMs, via a 90&...
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