Seungnyun Kim Moe Z. Win Dynamic Array-of-Subarrays Architecture for Wideband Multi-Antenna Systems. 840-855 2025 July 19 IEEE J. Sel. Top. Signal Process. 5 https://doi.org/10.1109/JSTSP.2025.3539208 db/journals/jstsp/jstsp19.html#KimW25 streams/journals/jstsp