The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Projetamos uma antena offset de quatro refletores que satisfaz a condição de eliminação de polarização cruzada e a condição de características de banda larga que consiste em uma corneta primária, três subrefletores e um refletor principal. A condição de eliminação de polarização cruzada para as antenas offset de quatro refletores é expressa pelas equações de hipérboles com os eixos coordenados do recíproco de distâncias focais equivalentes. As configurações do sistema refletor são derivadas simplesmente da representação gráfica porque existem antenas offset de quatro refletores que satisfazem essas relações nas hipérboles com os eixos coordenados do recíproco de distâncias focais equivalentes. Além disso, esclarecemos que a condição derivada para ter frente de fase planar aplicando a condição de características de banda larga é independente da frequência. É mostrado um exemplo de projeto real para antenas offset de quatro refletores que satisfazem a condição de eliminação de polarização cruzada e a condição de ter frente de fase planar, ambas independentes da frequência. O método de projeto usando a representação gráfica é mais simples do que o das antenas offset tri-refletoras.
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Takayoshi FURUNO, Mikio TAKABAYASHI, Yoichi KAWAKAMI, Takashi KATAGI, Hiroyoshi IKUNO, "Four-Reflector Offset Antennas for Space Communications" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 7, pp. 1342-1351, July 2002, doi: .
Abstract: We design a four-reflector offset antenna satisfying the cross-polarization elimination condition and the broadband characteristics condition which consists of one primary horn, three subreflectors and one main reflector. The cross-polarization elimination condition for the four-reflector offset antennas is expressed by the equations of hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. The configurations of the reflector system are derived simply from the graphical representation because four-reflector offset antennas satisfying these relationships exist on the hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. Furthermore, we clarified that the derived condition for having planar phase front applying the broadband characteristics condition is independent of frequency. An actual design example for the four-reflector offset antennas satisfying the cross-polarization elimination condition and the condition for having planar phase front, both of which are independent of frequency is shown. The design method using the graphical representation is simpler than that of the tri-reflector offset antennas.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_7_1342/_p
Copiar
@ARTICLE{e85-b_7_1342,
author={Takayoshi FURUNO, Mikio TAKABAYASHI, Yoichi KAWAKAMI, Takashi KATAGI, Hiroyoshi IKUNO, },
journal={IEICE TRANSACTIONS on Communications},
title={Four-Reflector Offset Antennas for Space Communications},
year={2002},
volume={E85-B},
number={7},
pages={1342-1351},
abstract={We design a four-reflector offset antenna satisfying the cross-polarization elimination condition and the broadband characteristics condition which consists of one primary horn, three subreflectors and one main reflector. The cross-polarization elimination condition for the four-reflector offset antennas is expressed by the equations of hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. The configurations of the reflector system are derived simply from the graphical representation because four-reflector offset antennas satisfying these relationships exist on the hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. Furthermore, we clarified that the derived condition for having planar phase front applying the broadband characteristics condition is independent of frequency. An actual design example for the four-reflector offset antennas satisfying the cross-polarization elimination condition and the condition for having planar phase front, both of which are independent of frequency is shown. The design method using the graphical representation is simpler than that of the tri-reflector offset antennas.},
keywords={},
doi={},
ISSN={},
month={July},}
Copiar
TY - JOUR
TI - Four-Reflector Offset Antennas for Space Communications
T2 - IEICE TRANSACTIONS on Communications
SP - 1342
EP - 1351
AU - Takayoshi FURUNO
AU - Mikio TAKABAYASHI
AU - Yoichi KAWAKAMI
AU - Takashi KATAGI
AU - Hiroyoshi IKUNO
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2002
AB - We design a four-reflector offset antenna satisfying the cross-polarization elimination condition and the broadband characteristics condition which consists of one primary horn, three subreflectors and one main reflector. The cross-polarization elimination condition for the four-reflector offset antennas is expressed by the equations of hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. The configurations of the reflector system are derived simply from the graphical representation because four-reflector offset antennas satisfying these relationships exist on the hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. Furthermore, we clarified that the derived condition for having planar phase front applying the broadband characteristics condition is independent of frequency. An actual design example for the four-reflector offset antennas satisfying the cross-polarization elimination condition and the condition for having planar phase front, both of which are independent of frequency is shown. The design method using the graphical representation is simpler than that of the tri-reflector offset antennas.
ER -