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This paper presents a design of CMOS source-degenerated active negative group delay (NGD) circuit by using bonding wire for a compact circuit size. The proposed circuit consists of two cascaded MOSFETs where parallel RLC resonator circuits are connected to the source of the MOSFETs. To reduce the size, the parallel RLC resonators are implemented with bonding wires and pads. For experimental verification, two-stage NGD circuits with slightly different center frequencies were designed. The measurement results show that the NGD bandwidth, group delay, and gain are 100MHz, −2.5 ns, and 3 dB, respectively. The measured input/output return losses are higher than 8 dB and 14 dB, respectively, at the center frequency of 1.88GHz.

A design of source-degenerated CMOS active negative group delay circuit using bonding wire