A wideband and low power dual-band ASK transceiver for intra/inter-chip communication

An energy-efficient dual-band ASK transceiver for intra/inter-chip communication is proposed in this paper. The transmitter is implemented with two coupled VCOs which have two modes and generate two carrier frequencies (75 GHz/85 GHz) with low power consumption. Meanwhile, the receiver consists of a wideband LNA, an envelope detector and output buffer. The LNA has a peak gain of 27 dB at 86 GHz, a bandwidth of 28 GHz from 65 GHz to 93 GHz and a power consumption of 7 mW. Intra-chip communication channels are implemented by on-chip transmission lines. Prototype ASK transceiver is fabricated in TSMC 65 nm CMOS process with an area of 0.42 mm
²
. A spectrum and transient measurements show the bandwidth achieves up to 8 GHz with a power consumption of 13 mW.