A Miniature Multi-Component Probe for Near-Field Scanning

Yang, Rui; Wei, Xing‐Chang; Shu, Yufei; Yi, Da; Yang, Yonggao

doi:10.1109/tap.2019.2927814

Cited by 47 publications

(6 citation statements)

References 18 publications

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“…Several kinds of probes in the near-field scanning system are widely used, such as electric probes, magnetic probes, and multicomponent probes. [2][3][4][5][6] A magnetic near-field probe consists of a single loop used for coupling a magnetic field and a transmission line structure to transmit signals. 7 When the loop couples magnetic field, the normal electric field also generates common mode (CM) signals， which reduces the accuracy of magnetic field measurement, so the design of a magnetic field probe with high CM suppression is necessarily important.…”

Section: Introductionmentioning

confidence: 99%

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Differential magnetic probe based on balanced filter with high electric field suppression

Chu,

Chen,

Che

et al. 2023

Micro & Optical Tech Letters

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A differential magnetic field probe based on a balanced filter is proposed to improve electric field suppression. The probe comprises a rectangular metal loop for detection and a balanced filter transmission. Three 1/4λ stepped impedance transmission lines are designed between the detective part and balanced filter for impedance matching. The balanced filter can suppress the common mode signals generated by a normal electric field but has little influence on the differential signals detected by a tangential magnetic field thus, the electric field suppression of the magnetic probe can be enhanced. The measurement results show that the working frequency of the proposed magnetic probe ranges from 10 to 20 GHz, and the electric field suppression ratio is over 35 dB from 10 to 15 GHz.

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Section: Introductionmentioning

confidence: 99%

“…For the performance of the near‐field probe has a significant influence on the test accuracy, the probe becomes the most important part of the system. Several kinds of probes in the near‐field scanning system are widely used, such as electric probes, magnetic probes, and multicomponent probes 2–6 …”

Section: Introductionmentioning

confidence: 99%

Differential magnetic probe based on balanced filter with high electric field suppression

Chu,

Chen,

Che

et al. 2023

Micro & Optical Tech Letters

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“…The dual probe, which can detect the electric field (E‐field) and magnetic field (H‐field) simultaneously at the same location, 25,29,30 has the advantages of high efficiency in near‐field scanning, and has less influence on the measured signals than that of the shielded loop probe. These advantages make the dual probe very suitable for high‐precision large‐area near‐field scanning, such as applications for the security of cryptographic large‐scale integrations 31,32 and the near‐field analysis of planar microwave circuits 33 .…”

Section: Introductionmentioning

confidence: 99%

“…The near-field probe is a key tool for near-field measurement, so the design and characterization of the probe are essential for the above applications. [1][2][3][18][19][20][21][22][23][24][25][26][27][28] The dual probe, which can detect the electric field (E-field) and magnetic field (H-field) simultaneously at the same location, 25,29,30 has the advantages of high efficiency in near-field scanning, and has less influence on the measured signals than that of the shielded loop probe. These advantages make the dual probe very suitable for…”

mentioning

confidence: 99%

De‐embedding calibration for an electromagnetic dual probe using GCPW

Li,

Shao,

Tian

et al. 2023

Micro & Optical Tech Letters

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An ultrawideband de‐embedding calibration method (DCM) for a dual probe is proposed in this paper. Different from the conventional calibration method (CCM), in which a microstrip calibrator and the dual probe form a three‐port calibration network, the proposed calibration system is a four‐port network. By using two different lengths of grounded coplanar waveguide (GCPW) calibrators, namely line‐kit and through‐kit, the de‐embedded ‐parameter model of the calibration network is obtained. Measured results show that the ripple of the DCM with GCPW reduced by 59% of the CCM with the microstrip calibrator, and the phase delay has been almost compensated. In addition, the proposed method reduces the attenuation by approximately 0.7 dB at 10 GHz and 1.15 dB at 20 GHz. The calibration results indicate that the working frequency of the DCM is up to 22 GHz.

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“…The dual probe that simultaneously measures the electromagnetic field in the z ‐direction and the magnetic field in the x ‐ and y ‐directions is proposed in ref. [30], and the measurement frequency can reach 15 GHz. In addition, the characterisation methods of key parameters of the near‐field probes have also attracted the attention of researchers.…”

Section: Introductionmentioning

confidence: 99%

Design and characterisation of a dual probe with double‐loop structure for simultaneous near‐field measurement

Chen

Tian

et al. 2022

IET Microwaves Antenna & Prop

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In this study, a near-field dual probe with a double-loop structure is designed and characterised. The high-performance, low-loss Rogers material and four-layer printed circuit board are applied to design the double detection loop structure, which increases the detection area and effectively improves the frequency response of the probe. The key parameters of the probe, including the frequency response, calibration factor, sensitivity, spatial resolution, isolation and differential electric field suppression are characterised by a microstrip line. Compared with other dual probes, the proposed probe has better frequency response and higher sensitivity. The magnetic field sensitivity is −90.88 dB A/m/ ffi ffi ffi ffi ffi ffi Hz p and the electric field sensitivity is −46.89 dB A/m/ ffi ffi ffi ffi ffi ffi Hz p at 1 GHz.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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A Miniature Multi-Component Probe for Near-Field Scanning

Cited by 47 publications

References 18 publications

Differential magnetic probe based on balanced filter with high electric field suppression

Differential magnetic probe based on balanced filter with high electric field suppression

De‐embedding calibration for an electromagnetic dual probe using GCPW

Design and characterisation of a dual probe with double‐loop structure for simultaneous near‐field measurement

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