Askar, RamezRamezAskarSchmieder, MathisMathisSchmiederChung, JaehoonJaehoonChungJohn, LaurenzLaurenzJohnMerkle, ThomasThomasMerkleWittig, SvenSvenWittigSuh, YonghakYonghakSuhLee, JongpilJongpilLeePeter, MichaelMichaelPeterHaustein, ThomasThomasHausteinKeusgen, WilhelmWilhelmKeusgenStanczak, SlawomirSlawomirStanczak2024-07-182024-07-182024https://publica.fraunhofer.de/handle/publica/47146610.1109/WCNC57260.2024.10571077This paper reports the development outcomes of the world's first integrated analog beamforming - transmit and receive - wireless front-ends operating in the D-band (a sub-THz band), particularly designed to operate within 150 GHz to 170 GHz frequency range. Front-end hardware development includes monolithic microwave integrated circuit (MMIC) chips of the multichannel power amplifier, multichannel low-noise amplifier, and RF switches. Moreover, the development includes an analog beamforming RF network and a low-profile microstrip 1-by-8 uniform linear antenna array, which were both developed on a resistive silicon substrate. The paper also features a successful long-range (320-meter) line-of-sight unidirectional point-to-point wireless transmission experiment, utilizing a 5G-NR orthogonal frequency division multiplexing (OFDM) waveform over a 160-GHz carrier frequency. The experiment demonstrated a successful transmission of OFDM waveforms using up to a 16-QAM (quadrature amplitude modulation) scheme in the D-band.en6GSub-THzD-bandbeamformingwireless transceiver front-endconference paper