X/Ku-band 8-element phased arrays based on single silicon chips

Yusuf A. Atesal, Berke Cetinoneri, Kwang-Jin Koh, Gabriel M. Rebeiz
2010 2010 IEEE MTT-S International Microwave Symposium  
This paper presents a complete 8-element X/Kuband phased array based on a single silicon chip. The phased array is integrated together with the antennas and digital control circuitry on a single Teflon board. The chip-on-board package, together with 8 X/Ku-band RF inputs and one RF output in a 2.2x2.5mm 2 area, and the appropriate grounding and Vcc connections, are modeled using a 3-D EM solver. The design results in a low coupling between the different RF ports, and ensures stability even with
more » ... stability even with a channel gain of 20 dB at 12 GHz. The measured patterns show a near-ideal performance up to a scan angle of 60° with an instantaneous bandwidth of 11.4-12.6 GHz (limited by non true-time delay connections between the antennas and the silicon chip). Temperature tests indicate that the silicon chip maintains excellent phase stability and rms phase error up to 100°C. To our knowledge, this represents the first system-level measurements on silicon-chip phased arrays. Index Terms -Communication systems, Ku-band, phased array, silicon RFIC, X-band.
doi:10.1109/mwsym.2010.5515176 fatcat:ihcvh67qgvgi5pifk2xfo3v76a