Andrzej Sawicki, Ericsson AB

Articles by Andrzej Sawicki, Ericsson AB

A New Class of Asymmetrical Directional Couplers for Power/Antenna Control Applications

A new class of asymmetrical directional couplers, convenient for power and antenna control applications, is proposed. The couplers can be fully or partially integrated into a printed circuit board (PCB). The couplers operate over -20 to -40 dB coupling...

November 1, 2005

Andrzej Sawicki, Ericsson AB

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Integration of RF power, RF small signal, digital, DC and supervision circuits is still one of the main goals of modern radar, satellite and wireless communications technology. Today’s solutions of close-to-antenna devices use a stack approach for integration of RF filters with power splitters/combiners and multilayer printed circuit boards...