A Bi-Directional 300-GHz-Band Phased-Array Transceiver in 65-nm CMOS With Outphasing Transmitting Mode and LO Emission Cancellation
نویسندگان
چکیده
This article introduces a four-element 300-GHz-band bi-directional phased-array transceiver (TRX). The TRX utilizes the same antenna, signal path, and local oscillator (LO) circuitry to operate either in transmitter (TX) mode or receiver (RX) mode. TX adopts outphasing technique increase average output power for higher order modulation schemes by utilizing two mixers that are connected directly antenna mixer-last fashion. paths also enable canceling of LO feed-through (LOFT). RX benefits from LOFT cancellation suppress emission, which is common issue mixer-first RXs. has separate Hartley operation reject image coming TX. chip was implemented using CMOS 65-nm process, phased array stacking liquid crystal polymer (LCP) flexible printed circuit boards (PCBs). stacked structure provides required narrow pitch at 300-GHz band. measured beam angle range −18° 18°. single-element consumption 750 mW both
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ژورنال
عنوان ژورنال: IEEE Journal of Solid-state Circuits
سال: 2022
ISSN: ['0018-9200', '1558-173X']
DOI: https://doi.org/10.1109/jssc.2022.3179166