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A Methodology for Extracting a Broadband Small-Signal Model of InP DHBT from 0.2 to 220 GHz | IEEE Conference Publication | IEEE Xplore

A Methodology for Extracting a Broadband Small-Signal Model of InP DHBT from 0.2 to 220 GHz


Abstract:

A methodology is proposed for extracting a broadband small-signal model of InP DHBT from 0.2 to 220 GHz, aiming specifically at terahertz (THz) applications. The intrinsi...Show More

Abstract:

A methodology is proposed for extracting a broadband small-signal model of InP DHBT from 0.2 to 220 GHz, aiming specifically at terahertz (THz) applications. The intrinsic part adopts a π topology, directly extracted from the de-embedded data below 67 GHz. The high frequency data is obtained after on-wafer TRL calibration. Considering the partial interconnection coupling in the device test data after TRL calibration, parasitics of interconnection coupling are taken into account in the model topology. The corresponding extraction method is provided for each parameter. Based on the proposed model topology and extraction method, a comparison between test values and simulated values demonstrates good agreement within the range of 0.2-220 GHz.
Date of Conference: 28-30 August 2024
Date Added to IEEE Xplore: 31 December 2024
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ISSN Information:

Conference Location: Chengdu, China

Introduction

The compound indium phosphide (InP) exhibits exceptional characteristics such as high electron mobility, breakdown electric field, superior anti-irradiation and noise properties, making it extensively utilized in the realm of terahertz integrated circuits. InP HBT/DHBT-based active components and system chips have found diverse applications in terahertz wireless communication, imaging, and radar systems. To establish a parallel relationship between process technology and circuit design methodologies, an accurate model serves as a crucial link. While small-signal models based on InP HBT/DHBT have been widely reported below 100 GHz [1]–[3], there are limited studies that extend their validity up to 200 GHz [4]–[6].

References

References is not available for this document.