Design and Experimentation of Inductorless Low-Pass NGD Integrated Circuit in 180-nm CMOS Technology

Abstract

This paper introduces an innovative design of a low-pass (LP) negative group delay (NGD) integrated circuit (IC) in 180-nm CMOS technology. The LP-NGD circuit is an inductorless topology constituted by RC-network with CMOS metal-insulator-metal (MIM) capacitor and poly gate resistor. The design methodology is illustrated by considering the chip layout process. Then, the first run simulation is performed with the design rule check (DRC) and 2.5 mm × 2.2 mm layout versus schematic (LVS) approaches. The feasibility of the CMOS LP-NGD IC circuit implementation is validated with chip-on-board (CoB). The proof of concept (PoC) of the LP-NGD miniaturized circuit was tested in both S-parameter and time-domain. As expected, the calculated, simulated and experimented results of CoB showing NGD of about -10 ns over 12 MHz and -10 dB attenuation is confirmed. Moreover, time-domain investigations were also performed to show the feasibility of generating pulse and arbitrary waveform signal time-advance through the designed and fabricated LP-NGD CoB prototypes.

Design Method of Constant Phase-Shifter Microwave Passive Integrated Circuit in 130-nm BiCMOS Technology With Bandpass-Type Negative Group Delay

“…The technical challenge slowing down the development of constant phase BP-NGD PS is the integration feasibility in miniaturized Tx-Rx system. The prominent solution is the design in CMOS integrated circuit (IC) technology whose the feasibility for LP- [41][42] and HP- [43] NGD circuits were 1 recently theoretically investigated.…”

“…[41][42][43], the proposed BP-NGD PS one should start from the targeted specifications to the final layout design. The main actions behind the design methodology of BP-NGD PS ICs are indicated by the design flow depicted by Fig.11.…”

“…The robustness of the PS expected during the fabrication process is expected with 1000-trial MC UAs. The sensitivities of the constant PS characteristics are pointed out in function of the relative variations of layout IC physical parameters.As ongoing research in continuation of the present study, we are currently working on:• The fabrication and test of BiCMOS BP-NGD PS prototypes, • The feasibility of BP-NGD PS at higher frequencies as W-band, • The integration and test of multi-band BP-NGD PS in for phased array antenna design[40][41][42][43],• And the real environment characterization test of miniaturized CMOS and MMIC PS for the future 5G and 6G TxRx microwave system.…”

High Sensitivity Envelope Detector Assisted by Microwave Photonics

“…In difference with the filter theory which is based on the magnitude frequency response, the NGD theory depends on the group delay (GD) diagram [1][2][3][4]. The types of low-pass (LP) [5][6][7][8][9][10][11][12][13][14][15][16][17], high-pass (HP) [18][19][20][21][22][23], bandpass (BP) [24][25][26][27], stop-band (SB) [28][29] and all-pass (AP) [30] NGD circuit topologies were introduced with R, L and C lumped components. Somehow, one may confuse NGD and filter behaviors.…”

“…Some decades ago, particular engineering and scientific work efforts were paid on the development of the negative group delay (NGD) electronic circuit design with remarkable research results . Indeed, it was outstandingly theoretically and experimentally demonstrated that the NGD circuits present a strange property of generating outputs in advance of its input [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Some of curious interpretations want to state that the NGD effect is like an impossible phenomenon or also classified as anomalous physical phenomenon.…”