Radio Frequency Exposure Compliance of Multiple Antennas for Cellular Equipment Based on Semidefinite Relaxation
(2019) In IEEE Transactions on Electromagnetic Compatibility 61(2). p.327-336- Abstract
Human exposure to radio frequency (RF) electromagnetic fields should not exceed the exposure limits set by the relevant regulatory guidelines. In this paper, we provide approaches to determine upper bounds of maximum exposure from multiple antennas. When the total transmitted power is fixed, the maximum exposure can be determined by an eigenvalue decomposition. If an individual antenna has additional power constraint, the exposure maximization problem can be relaxed to a semidefinite program. Two case studies are given to demonstrate the approaches to the maximum exposure of cellular equipment using multiple antennas. The methods and the obtained results provide valuable insights into RF compliance procedures of cellular equipment.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4e8c9f3a-715f-4c01-b5ed-59e0dbf8e58d
- author
- Xu, Bo LU ; Gustafsson, Mats LU ; Shi, Shuai ; Zhao, Kun ; Ying, Zhinong and He, Sailing
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- 5G, 5G mobile communication, Antennas, cellular equipment, Density measurement, eigenvalue decomposition (EVD), MIMO communication, multi-input and multi-output (MIMO), multiple antennas, power density, Power system measurements, Radio frequency, radio frequency (RF) exposure, semidefinite relaxation (SDR), specific absorption rate (SAR)
- in
- IEEE Transactions on Electromagnetic Compatibility
- volume
- 61
- issue
- 2
- pages
- 327 - 336
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:85047999601
- ISSN
- 0018-9375
- DOI
- 10.1109/TEMC.2018.2832445
- language
- English
- LU publication?
- yes
- id
- 4e8c9f3a-715f-4c01-b5ed-59e0dbf8e58d
- date added to LUP
- 2018-06-12 14:23:23
- date last changed
- 2022-04-25 07:30:39
@article{4e8c9f3a-715f-4c01-b5ed-59e0dbf8e58d, abstract = {{<p>Human exposure to radio frequency (RF) electromagnetic fields should not exceed the exposure limits set by the relevant regulatory guidelines. In this paper, we provide approaches to determine upper bounds of maximum exposure from multiple antennas. When the total transmitted power is fixed, the maximum exposure can be determined by an eigenvalue decomposition. If an individual antenna has additional power constraint, the exposure maximization problem can be relaxed to a semidefinite program. Two case studies are given to demonstrate the approaches to the maximum exposure of cellular equipment using multiple antennas. The methods and the obtained results provide valuable insights into RF compliance procedures of cellular equipment.</p>}}, author = {{Xu, Bo and Gustafsson, Mats and Shi, Shuai and Zhao, Kun and Ying, Zhinong and He, Sailing}}, issn = {{0018-9375}}, keywords = {{5G; 5G mobile communication; Antennas; cellular equipment; Density measurement; eigenvalue decomposition (EVD); MIMO communication; multi-input and multi-output (MIMO); multiple antennas; power density; Power system measurements; Radio frequency; radio frequency (RF) exposure; semidefinite relaxation (SDR); specific absorption rate (SAR)}}, language = {{eng}}, number = {{2}}, pages = {{327--336}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Electromagnetic Compatibility}}, title = {{Radio Frequency Exposure Compliance of Multiple Antennas for Cellular Equipment Based on Semidefinite Relaxation}}, url = {{http://dx.doi.org/10.1109/TEMC.2018.2832445}}, doi = {{10.1109/TEMC.2018.2832445}}, volume = {{61}}, year = {{2019}}, }