Spherical near field testing of small antennas from 800MHz to 18GHz

2007 ◽  
Author(s):  
L. J. Foged ◽  
J. Estrada ◽  
P. O. Iversen
Keyword(s):  
Near Field ◽  
Field Testing ◽  
Small Antennas

Near field testing on ACTS breadboard multibeam antenna (MBA)

2003 ◽  
Author(s):  
C.H. Chen ◽  
W.C. Wong ◽  
S.J. Hamada
Keyword(s):  
Near Field ◽  
Field Testing ◽  
Multibeam Antenna

AWE-Inspiring Electrically Small Antennas

2022 ◽  
Vol 1 ◽  
pp. 1-27
Author(s):  
Richard W. Ziolkowski ◽  
Keyword(s):  
Internet Of Things ◽  
Near Field ◽  
Performance Characteristics ◽  
Electrically Small Antennas ◽  
Active Systems ◽  
Small Antennas ◽  
Iot Applications ◽  
Research Areas ◽  
The Future ◽  
Forward Looking

Anytime-wireless-everywhere (AWE) aspirations for Internet-of-Things (IoT) applications to be enabled through current 5G and evolving 6G and beyond ecosystems necessitate the development of innovative electrically small antennas (ESAs). While a variety of ESA systems are reviewed, those realized from the near-field resonant parasitic (NFRP) antenna paradigm are emphasized. Efficiency, bandwidth and directivity issues are highlighted. Multifunctional, reconfigurable, passive and active systems that have been achieved are discussed and illustrated; their performance characteristics and advantages described. This overview finalizes by going back to the future and considers enterprising research areas of current and forward-looking interest.

scholarly journals Near-Field Immunity Test Method for Fast Radiated Immunity Test Debugging of Automotive Electronics

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 797 ◽  
Author(s):  
Jawad Yousaf ◽  
Doojin Lee ◽  
JunHee Han ◽  
Hosang Lee ◽  
Muhammad Faisal ◽  
...  
Keyword(s):  
Automotive Industry ◽  
Near Field ◽  
Cost Effective ◽  
Field Testing ◽  
Input Power ◽  
Test Method ◽  
Automotive Electronics ◽  
Test Results ◽  
Electric Power Steering ◽  
Power Steering

This study presents a near-field immunity test (NFIT) method for the fast debugging of radiated susceptibility of industrial devices. The proposed approach is based on the development of an NFIT setup which comprises of developed near-field electric and magnetic field probes and device under test (DUT). The developed small-size and handy near-field testing probes inject the high electric (up to 1000 V/m) and magnetic (up to 2.4 A/m) fields on the DUT in the radar pulse ranges (1.2 to 1.4 GHz and 2.7 to 3.1 GHz) with the lower fed input power (up to 15 W) from the power amplifier in the developed NFIT setup. The proof of concept is validated with the successful near-field immunity debugging of an electric power steering (EPS) device used in the automotive industry with the developed NFIT setup. The radiated susceptibility debugging test results of developed NFIT method and conventional method of ISO 11452-2 test setup turned out to be close to each other for the tested DUT in immunity performance. The proposed procedure has advantages of industry usefulness with fast, handy, and cost-effective radiated immunity debugging of the DUT without the requirement of large antenna, high-power amplifiers, optical DUT connecting harness, and an anechoic chamber as needed in ISO 11452-2 standard setup for the debugging analysis.

The Optimum Operating Frequency for Near-Field Coupled Small Antennas

2011 ◽  
Vol 59 (3) ◽  
pp. 1027-1031 ◽  
Author(s):  
Youndo Tak ◽  
Jongmin Park ◽  
Sangwook Nam
Keyword(s):  
Near Field ◽  
Operating Frequency ◽  
Optimum Operating ◽  
Small Antennas

scholarly journals Theory of Nonsinusoidal Small Antennas with Applications to Near-Field Communication System Analysis and Design

2020 ◽  
Author(s):  
Said Mikki
Keyword(s):  
Time Domain ◽  
System Analysis ◽  
Near Field ◽  
Near Field Communication ◽  
Rigorous Analysis ◽  
Analysis And Design ◽  
Small Antennas ◽  
Communications Systems ◽  
Receive Antenna ◽  
Exact Cancellation

We provide a conceptual and theoretical analysis of nonsinusoidal antennas with emphasis on how electromagnetics and communication theories can be integrated to propose ideas for near-field (NF) communications systems utilizing future antennas. It is shown through rigorous analysis that in nonsinusoidal antennas it is possible to derive and solve ordinary differential equations giving specialized time-domain excitation signals that lead to exact cancellation of the near field at specific radiation spheres. This opens the door to building NF communications systems with far-field-like communication receiver infrastructures utilized if the receive antenna is placed at the special sphere where the NF component is made to vanish.

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