Ilona Piekarz, Jakub Sorocki, Krzysztof Wincza, Slawomir Gruszczynski. Rat-race directional couplers operating in differential mode. In 2017 IEEE Radio and Wireless Symposium, RWS 2017, Phoenix, AZ, USA, January 15-18, 2017. pages 184-186, IEEE, 2017. [doi]
Abstract is missing.