Near-field radiation behaviors of super-Gaussian circular aperture antenna

Nanoscale ridge aperture antenna as a nanoscale high transmission optical device is demonstrated. High transfer efficiency and confined radiation are achieved simultaneously in the near field compared with regularly-shaped apertures. The radiation enhancement is attributed to the fundamental electromagnetic field propagating in the TE10 mode concentrated in the gap between the ridges. The transfer efficiency is further enhanced through plasmon excitation and resonance. This paper reports spectroscopic measurements of radiative transfer through bowtie shape ridge aperture antennas. Resonance in these aperture antennas and its relation with the aperture geometry are investigated. The near-field radiation through the bowtie aperture and the regular nanoaperture is also mapped with near-field scanning optical microscopy. It is revealed that plasmon excitation and resonance contribute to the radiation enhancement through the ridge aperture antennas.

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Calculation of Near Field of Circular Aperture Antenna Using Geometrical Theory of Diffraction

IEEE Transactions on Electromagnetic Compatibility ◽

10.1109/temc.1971.303115 ◽

1971 ◽

Vol EMC-13 (2) ◽

pp. 29-34 ◽

Cited By ~ 3

Author(s):

T. Cherot

Keyword(s):

Near Field ◽

Circular Aperture ◽

Geometrical Theory ◽

Aperture Antenna ◽

Geometrical Theory Of Diffraction

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Plasmonic-Enhanced Radiative Transfer Through Nanoscale Aperture Antennas

First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B ◽

10.1115/mnc2007-21589 ◽

2007 ◽

Author(s):

Eric X. Jin ◽

Liang Wang ◽

Xianfan Xu

Keyword(s):

Radiative Transfer ◽

Near Field ◽

Transfer Efficiency ◽

Aperture Antenna ◽

Plasmon Excitation ◽

Aperture Antennas ◽

Radiation Enhancement ◽

Field Radiation ◽

Scanning Optical Microscopy ◽

Near Field Scanning

Nanoscale ridge aperture antenna as a nanoscale high transmission optical device is demonstrated. High transfer efficiency and confined radiation are achieved simultaneously in the near field compared with regularly-shaped apertures. The radiation enhancement is attributed to the fundamental electromagnetic field propagating in the TE10 mode concentrated in the gap between the ridges. The transfer efficiency is further enhanced through plasmon excitation and resonance. This paper reports spectroscopic measurements of radiative transfer through bowtie shape ridge aperture antennas. Resonance in these aperture antennas and its relation with the aperture geometry are investigated. The near-field radiation through the bowtie aperture and the regular nanoaperture is also mapped with near-field scanning optical microscopy. It is revealed that plasmon excitation and resonance contribute to the radiation enhancement through the ridge aperture antennas.

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Computation of Near-Field and Far-Field Radiation Characteristics of Acoustic Transducers for Underwater Acoustic Imaging

International Journal on Communications Antenna and Propagation (IRECAP) ◽

10.15866/irecap.v10i3.18684 ◽

2020 ◽

Vol 10 (3) ◽

pp. 145

Author(s):

L. S. Praveen ◽

Govind R. Kadambi ◽

S. Malathi ◽

Preetham Shankapal

Keyword(s):

Near Field ◽

Acoustic Imaging ◽

Far Field ◽

Radiation Characteristics ◽

Underwater Acoustic ◽

Acoustic Transducers ◽

Field Radiation

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FIELD STATISTICS OF THE CIRCULAR APERTURE ANTENNA FOCUSED AT THE FRESNEL ZONE. PART 1. MEAN FIELD CHARACTERISTICS

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v73.i17.10 ◽

2014 ◽

Vol 73 (17) ◽

pp. 1503-1531 ◽

Cited By ~ 1

Author(s):

Ya. S. Shifrin ◽

V. V. Dolzhikov

Keyword(s):

Fresnel Zone ◽

Mean Field ◽

Circular Aperture ◽

Aperture Antenna

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Nanoscale Heat Transfer Due to Near Field Radiation and Nanofluidic Flows

10.21236/ada625941 ◽

2015 ◽

Author(s):

Peter Taborek

Keyword(s):

Heat Transfer ◽

Near Field ◽

Nanoscale Heat Transfer ◽

Field Radiation

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Near-Field Gain Expression for Aperture Antenna and Its Application

IEEE Antennas and Wireless Propagation Letters ◽

10.1109/lawp.2021.3076018 ◽

2021 ◽

pp. 1-1

Author(s):

Luyin Xiao ◽

Yong Jun Xie ◽

Peiyu Wu ◽

Junbao Li

Keyword(s):

Near Field ◽

Aperture Antenna

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Near-Field Sensor Based on SIW Microstrip Cavity Resonator with a Circular Aperture

2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting ◽

10.1109/ieeeconf35879.2020.9329780 ◽

2020 ◽

Author(s):

Chaoxian Qi ◽

David R. Jackson ◽

Jiefu Chen

Keyword(s):

Near Field ◽

Cavity Resonator ◽

Circular Aperture ◽

Field Sensor

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Reconstruct the PWM Signal of Switching Power Supplies from the Near Field Radiation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.718-720.1792 ◽

2013 ◽

Vol 718-720 ◽

pp. 1792-1796

Author(s):

Zhong Qun Li ◽

Kai Xie ◽

Ying Hao Ye ◽

Rong Bin Guo ◽

Xu Fei Wang

Keyword(s):

Pulse Width Modulation ◽

Signal Reconstruction ◽

Near Field ◽

Buck Converter ◽

Power Supplies ◽

Switching Converters ◽

Switching Power ◽

Magnetic Components ◽

Field Radiation ◽

Switching Power Supplies

A non-contact testing method is proposed for encapsulation treated or insulation coated switching power supplies, which is implemented by reconstructing the pulse width modulation (PWM) signal of switching converters from the near field radiation of magnetic components. The radiation pattern of a buck converter is investigated, and the magnetic field sensing probe and PWM signal reconstruction circuit are also illustrated. The reconstruction testing is carried out on a buck converter; the duty cycle error of the reconstructed PWM signal is less than 0.2%, which validates the proposed method.

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