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<?Pub Dtl?>This paper presents a four-element -band phased-array transmitter in CMOS. The design is based on the all-RF architecture and contains a 5-bit phase shifter (lowest bit is used as a trim bit), 4-bit gain control (to reduce the rms gain error), and power amplifiers capable of delivering a of per channel at 8.5–10.5 GHz...
This paper presents a QFN packaged phased-array RFIC for X-band applications. The transmit X-band phased array is differential except for baluns at the input and output ports. Electromagnetic simulation is done to result in low channel-to-channel coupling. Measurements show a wideband impedance match and a worst-case channel-to-channel coupling of < −29 dB at 8–10 GHz. The results show that...
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