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This letter demonstrates an X‐band transceiver front‐end in 130‐nm CMOS technology for phased‐array systems. To solve the problem that passive attenuator performance deteriorates significantly in wideband systems, a 6‐bit attenuator with source follower and common‐gate amplifier is proposed. Besides, an 8‐bit vector‐summing phase shifter is implemented in common path to realize the phase coverage...