Jamming Resilient Spread Spectrum Receiver with Time-Varying Transmission Line (TVTL) RF Correlator

In-band jamming/interference could be alleviated by performing direct correlation at the RF front-end through coding and decoding. In this paper, a chip-scale RF correlator is designed utilizing the monolithically integrated time-varying transmission line (TVTL). The proposed correlator is low-loss, has low noise figure and can handle large power. Both correlation and correlation/demodulation tests are carried out.