Aznar, Francisco Esteban-Eraso, Uxua Perez-Martinez, Antonio D. Celma, Santiago A New Metric Measuring Steering Accuracy of Digitally Controlled Phase Shifters Int. Conf. Synth. Model. Anal. Simul. Methods Appl. Circuit Design 10.1109/SMACD61181.2024.10745457 2024 2024