Arun Reddy Chada, Young H. Kwark, et al.
EPEPS 2009
This paper reports the development of a compact and highly programmable 28-GHz phased array subsystem that is currently being integrated in a city-scale testbed for advanced wireless research and experimentation. The subsystem hardware consists of a 28-GHz 64-element state-of-the-art dual-polarized phased array antenna module (PAAM), low-noise DC-DC power regulators with a single 12-V input, current sensors and an ADC for real-time supply monitoring, a PLL for LO (5 GHz) generation, IF (3 GHz)/LO splitters, IF/LO baluns, and programmable switches. All of these components are integrated in a compact (10' x5.75') PCB which also supports the direct plug-in of a commercial-off-the-shelf FPGA system-on-module (SoM). The IF switches and splitters couple the PAAM to 20 IF ports that enable a rich set of MIMO configurations, including up to 8 simultaneous 16-element independent beams in each TX/RX mode. The FPGA and associated software enable the configuration of all subsystem features from a high-level application program interface (API), facilitating MIMO millimeter-wave wireless experiments. 28-GHz channel sounding measurements using the phased array subsystem coupled with software-defined radios is presented as a testbed-level experiment example.
Arun Reddy Chada, Young H. Kwark, et al.
EPEPS 2009
Ki Jin Han, Mark B. Ritter, et al.
EPEPS 2010
Young H. Kwark, Miroslav Kotzev, et al.
IMS 2011
Dipankar Raychaudhuri, Ivan Seskar, et al.
MobiCom 2020