Design of Miniature Ultrawideband Active Magnetic Field Probe Using Integrated Design Idea
Author:
Zhou Yang1ORCID, Yan Zhaowen1ORCID, Ma Zhangqiang1, Zhao Yang2, Gao Jie2, Cheng Ruiqi2, Huang Baocheng2
Affiliation:
1. School of Electronic and Information Engineering, Beihang University, Beijing 100191, China 2. Beijing Engineering Research Center of High-Reliability IC with Power Industrial Grade, Beijing Smart-Chip Microelectronics Technology Co., Ltd., Beijing 102299, China
Abstract
This article presents a miniature ultrawideband active magnetic probe which is composed of a passive structure and an active amplification circuit structure. The active circuit mainly contains two chips, specifically an amplification chip (HMC797APM5E) and a power management chip (HMC980LP4E). The maximum size of the probe is no more than 64 × 41.5 mm2. Compared with the passive probe with the same-sized loop, the sensitivity of the proposed probe is enhanced by 25 dB through the active circuit design. The working frequency bandwidth of the proposed probe can cover 9 kHz to 18 GHz. Additionally, the flatness is about ±4 dB in terms of |S21| in the stable working bandwidth. It is efficient for high-frequency near-field scanning.
Funder
Laboratory Open Fund of Beijing Smart-Chip Microelectronics Technology Co., Ltd.
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
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