A 300GHz Mixer-First Receiver with Microbump AoC for Software Defined Radio

This paper presented a mixer-first receiver for software defined radio at 300 GHz. It employs a differential microbump antenna-on-chip (AoC) with exceptional radiation gain and efficiency. The AoC and mixer are then connected via a matching network, which enhances both conversion gain and noise figure of the mixer. At the RF front-end stage, the receiver achieves a peak mixer conversion gain of 14.6dB, a maximum total receiving gain of 23 dB, and a lowest noise figure of 13dB.