Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009

Выпуски:
Том 78, 2019 Том 77, 2018 Том 76, 2017 Том 75, 2016 Том 74, 2015 Том 73, 2014 Том 72, 2013 Том 71, 2012 Том 70, 2011 Том 69, 2010 Том 68, 2009 Том 67, 2008 Том 66, 2007 Том 65, 2006 Том 64, 2005 Том 63, 2005 Том 62, 2004 Том 61, 2004 Том 60, 2003 Том 59, 2003 Том 58, 2002 Том 57, 2002 Том 56, 2001 Том 55, 2001 Том 54, 2000 Том 53, 1999 Том 52, 1998 Том 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v51.i4.70
pages 46-52

Optimizing Power Transmission by a Microwave Beam in the Presence of Random Errors of the Transmit Antenna Excitation

V. G. Likhograi

Краткое описание

An important part of a space borne power system is its microwave power transmission line consisting of a transmit antenna, the propagation space and a receive rectenna [1-3]. The rectenna is an array of radiating elements whose outputs are connected to rectifiers. The d. c. power is collected in a common load using a linear collecting circuit combining parallel and series connections.
In terms of energy, the performance of the transmission channel can be estimated through its efficiency, which depends on sizes of the transmit and receive antenna apertures, spacing between the antennas, their mutual orientation, distribution of the excitation field across the transmitting aperture and parameters of the rectifying elements.
The effect of these factors on the power transmission has been investigated quite completely. As has been found efficient power transmission is achieved if the rectenna is located in the Fresnel zone of the transmitting antenna, the amplitude distribution across its aperture is close to a truncated Gauss distribution, and the phase distribution approaches a square law with the phase front radius of the curvature equal to the distance between the antennas [4,5]. The effects of amplitude, phase and polarization fluctuations in the beam cross-section have also been investigated [6]. A method has been suggested for synthesizing the amplitude distribution of a focused transmitting antenna to provide a maximum efficiency of power transmission with account of efficiencies of the receiving-rectifying elements [7].
For a number of manufacturing and operational reasons there are some other factors, which can affect significantly the efficiency of power transmission, namely, the amplitude and phase fluctuations of the field across the transmitting aperture. This paper is devoted to the transmission line optimization according to the criterion of maximum average efficiency. The excitation field distribution of the transmit antenna is determined which should provide a maximum of the average efficiency with given parameters of the amplitude and phase fluctuations.


Articles with similar content:

Frequency Dependences of Scattering Matrices in the Resonance Domain
Telecommunications and Radio Engineering, Vol.55, 2001, issue 4
S. Y. Tolstel, V. I. Lutsenko
THE FEATURES OF RADIATION FORMATION BY THE SMALL-APERTURE SHF ANTENNAS
Telecommunications and Radio Engineering, Vol.73, 2014, issue 2
N. A. Popenko, V. I. Pishchikov, R.Ye Chernobrovkin, M. M. Khruslov, I. V. Ivanchenko
FLEXIBLE PROTECTIVE MICROWAVE SCREENS ON THE BASIS OF THIN CONDUCTING FIBERS
Telecommunications and Radio Engineering, Vol.76, 2017, issue 18
V. A. Timanyuk, I. A. Priz, N. G. Kokodiy, A. O. Natarova
MULTIBAND PIRAMIDAL HORN ANTENNAS WITH IDENTICAL MAIN LOBE WIDTHS OF THE DIRECTIONAL PATTERNS
Telecommunications and Radio Engineering, Vol.73, 2014, issue 9
N. N. Gorobets, A. A. Yelizarenko
Quasi-Optimum Algorithm for Radioholographic System Antenna Self-Focusing for reception as to Many Targets in the Presence of Additive and Multiplicative Disturbances
Telecommunications and Radio Engineering, Vol.51, 1997, issue 4
N. I. Matyukhin