This paper presents a polarization reconfigurable differential circularly polarized (PRDCP) antenna with wide impedance and axial ratio (AR) bandwidth for right-hand circular polarization (RHCP) or left-hand circular polarization (LHCP). The antenna is composed of a bandwidth-improved radiator and a reconfigurable differential-to-single-ended sequential feeding network. The radiator c... https://herbsdailyes.shop/product-category/medical-and-ambulatory-supplies-respiratory/