Gain Estimation for Electrically Small Antennas with the Use of the Near-Field Zone Measurements

2021 ◽  
Author(s):  
Mikhail I. Sugak ◽  
Svyatoslav V. Ballandovich ◽  
Yuri G. Antonov ◽  
Gregory A. Kostikov ◽  
Liubov M. Liubina
Keyword(s):  
Near Field ◽  
Electrically Small Antennas ◽  
Field Zone ◽  
Small Antennas

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 Using Truncated Data Sets in Spherical-Scanning Antenna Measurements

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Ronald C. Wittmann ◽  
Carl F. Stubenrauch ◽  
Michael H. Francis
Keyword(s):  
Near Field ◽  
Estimation Method ◽  
Data Sets ◽  
Electrically Small Antennas ◽  
Constrained Least Squares ◽  
Truncated Data ◽  
Truncation Errors ◽  
Small Antennas ◽  
Main Emphasis ◽  
Harmonic Representation

We discuss the mitigation of truncation errors in spherical-scanning measurements by use of a constrained least-squares estimation method. The main emphasis is the spherical harmonic representation of probe transmitting and receiving functions; however, our method is applicable to near-field measurement of electrically small antennas for which full-sphere data are either unreliable or unavailable.

Novel Electrically Small Antennas and Metamaterial High Impedance Surfaces

2005 ◽  
Author(s):  
Ahmad Hoorfar ◽  
John McVay ◽  
Jinhui Zhu ◽  
Hui Huang
Keyword(s):  
Electrically Small Antennas ◽  
Small Antennas ◽  
High Impedance

Parametric Enhancement of Radiation from Electrically Small Antennas

2021 ◽  
Vol 15 (5) ◽  
Author(s):  
Ahmed Mekawy ◽  
Huanan Li ◽  
Younes Radi ◽  
Andrea Alù
Keyword(s):  
Electrically Small Antennas ◽  
Small Antennas

Near-field zone analysis of the Faraday rotation of magneto-optical thin films

2000 ◽  
Vol 88 (5) ◽  
pp. 2541-2547 ◽  
Author(s):  
N. Richard ◽  
A. Dereux ◽  
E. Bourillot ◽  
T. David ◽  
J. P. Goudonnet ◽  
...  
Keyword(s):  
Thin Films ◽  
Faraday Rotation ◽  
Near Field ◽  
Field Zone
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