A novel ring resonator-based photonic beamformer has been developed for continuous and squint-free control of the reception angle of broadband phased array antenna systems. The core of the system is a ring resonator-based optical beamforming network (OBFN) used for delay synchronization and coherent signal combining. The OBFN is integrated in a single chip realized in CMOS-compatible optical waveguide technology together with an optical sideband filter for singlesideband suppressed-carrier modulation, and an optical carrier reinsertion circuit for balanced coherent detection. This paper demonstrates the system functionality by RF-to-RF measurements of the phase and power responses of the integrated OBFN.
|Title of host publication||MWP09 - 2009 International Topical Meeting on Microwave Photonics|
|Publication status||Published - 2009|
|Event||IEEE International Topical Meeting on Microwave Photonics (MWP) 2009 - Valencia, Spain|
Duration: 14 Oct 2009 → 16 Oct 2009
|Conference||IEEE International Topical Meeting on Microwave Photonics (MWP) 2009|
|Abbreviated title||MWP 2009|
|Period||14/10/09 → 16/10/09|