Analog Devices is aiming at X-band and Ku-band phased-array antennas with an active analogue beam-forming chip that includes four channels of transmit and receive gain and phase control, plus a transmit/receive switch for each channel. The chip, called ADAR1000, operates in half-duplex: In receive (Rx) mode the four Rx inputs are combined to a common RF_IO pin ...
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from Electronics Weekly https://www.electronicsweekly.com/news/products/rf-microwave-optoelectronics/phased-array-chip-forms-beams-8-16ghz-2018-05/
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