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Dual-Polarized Architecture for Channel Sounding at 60 GHz with Digital/Analog Phase Control based on 0.25μm SiGe BiCMOS and LTCC Technology

Alexis Paolo Garcia Ariza, Robert Müller, Frank Wollenschläger, Lei Xia, Mohamed Elkhouly, Yaoming Sun, Uwe Trautwein, and Reiner S. Thomä

The cooperation work has been accepted and submitted for publication at the 5th European Conference on Antennas and Propagation - EuCAP 2011, Rome, Italy, 11-15 April 2011.

Abstract: Channel sounders that are used to investigate 60 GHz multipath propagation and multi-user access techniques under time-variant shadowing environments require challenging technical characteristics, e.g., ultra-wideband (UWB) real-time operation (7 to 9 GHz bandwidth), multiple antennas, and high dynamic range. In addition, dual-polarization and phase adjustment have become in a need not only for full channel characterization extracting polarimetric information, but also for consumer user cases under polarization mismatch and misalignment. This paper presents a novel 60 GHz UWB dualpolarized (DP) air interface architecture (AIA) incorporating 360° phase shifters on chip fulfilling the previous requirements. The AIA is based on a 0.25μm SiGe BiCMOS chip-set, and lowtemperature co-fired ceramics (LTCC) technology for antennas and packaging. Measurement results using our first prototype are addressed in this paper. The phase adjustment capability is verified and also its usability for cross-polarized real-time measurements including disturbances due to human activity.

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Publications Publications, alphabetical order Publications 2008 Publications 2009 Publications 2010 Publications 2011 ICC 2009 PR 01/2009 Final Presentation	[57] Dual-Polarized Architecture for Channel Sounding at 60 GHz with Digital/Analog Phase Control based on 0.25μm SiGe BiCMOS and LTCC Technology Alexis Paolo Garcia Ariza, Robert Müller, Frank Wollenschläger, Lei Xia, Mohamed Elkhouly, Yaoming Sun, Uwe Trautwein, and Reiner S. Thomä The cooperation work has been accepted and submitted for publication at the 5th European Conference on Antennas and Propagation - EuCAP 2011, Rome, Italy, 11-15 April 2011. Abstract: Channel sounders that are used to investigate 60 GHz multipath propagation and multi-user access techniques under time-variant shadowing environments require challenging technical characteristics, e.g., ultra-wideband (UWB) real-time operation (7 to 9 GHz bandwidth), multiple antennas, and high dynamic range. In addition, dual-polarization and phase adjustment have become in a need not only for full channel characterization extracting polarimetric information, but also for consumer user cases under polarization mismatch and misalignment. This paper presents a novel 60 GHz UWB dualpolarized (DP) air interface architecture (AIA) incorporating 360° phase shifters on chip fulfilling the previous requirements. The AIA is based on a 0.25μm SiGe BiCMOS chip-set, and lowtemperature co-fired ceramics (LTCC) technology for antennas and packaging. Measurement results using our first prototype are addressed in this paper. The phase adjustment capability is verified and also its usability for cross-polarized real-time measurements including disturbances due to human activity.