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The active components (phase shifters, LNAs) of a Ku-band direct radiating array are a major part of its cost. A way to reduce this cost is to use simpler control elements. In the frame of ESA project BEST (BEam Switching Transmit-receive mobile user terminal antenna), we have designed, built and measured a receive-only, Ku-band demonstrator using 1-bit phase controls. These controls have been implemented using discrete switches.