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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v66.i18.50
pages 1667-1675

Performance of Microwave Wireless Power Transmission Systems with Non- Optimal Interception Efficiency

Viktoriya M. Shokalo
Kharkiv National University of Radio Engineering and Electronics
A. M. Rybalko
Kharkov National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkiv, 61166, Ukraine
A. A. Konovaltsev
Kharkiv National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkiv, 61166
M. A. Omarov
Kharkov National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkov, 61166
D. B. Gretskih
Kharkiv National University of Radio Engineering and Electronics, 14, Lenin Ave, Kharkiv, 61166, Ukraine

ABSTRACT

New results of the investigations of the influence of the rectenna exciting-field non-uniformity on its resulting efficiency are represented. The efficiencies of two variants of wireless power transmission (WPT) systems which differ in the form of the amplitude exciting-field distribution of the rectenna are compared. At the first variant the amplitude distribution is an optimal Gaussian one over the incident beam cross section and at the second variant it approaches as much as possible close to a uniform one. For such comparison the exciting field focused by a transmitting antenna has been found as a result of solving the synthesis problem. Antenna and rectenna radii as well as a power transmission band are prescribed. It is shown that in practice the second variant of the WPT system is more preferable that allows us to simplify significantly the rectenna design.


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