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
Ciri pantulan medan berhampiran reaktif penyerap RF komersial disiasat untuk menentukan saiz minimum kotak anechoic medan reaktif yang diperlukan untuk mengukur medan berhampiran reaktif antena ESPAR. Pemantulan penyerap yang diletakkan berdekatan dengan antena adalah berkadar songsang dengan jarak antara antena dan penyerap. Untuk penyerap tirus buih uretana yang diisi karbon, kami mendapati bahawa ciri pantulan berselerak belakang terutamanya bergantung pada ketinggian tirusnya dan bukannya ketebalan tapak penyerap. Hasilnya, kami menunjukkan bahawa piramid buih uretana yang diisi karbon dan penyerap berbentuk permukaan gelombang boleh digunakan untuk membuat kotak anechoic medan reaktif. Satu prototaip kotak anechoic medan reaktif dibentangkan dan jarak dari penyerap ke antena dikurangkan kepada panjang gelombang. Prototaip itu disahkan dengan membandingkan prestasinya dengan yang diperoleh daripada ruang anechoic yang besar.
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Salinan
Qing HAN, Keizo INAGAKI, Kyouichi IIGUSA, Robert SCHLUB, Takashi OHIRA, "Reactive-Field Anechoic Box for ESPAR Antenna Measurement" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 7, pp. 1451-1459, July 2002, doi: .
Abstract: Reactive near field reflection characteristics of commercial RF absorbers are investigated to determine the minimum size of a reactive-field anechoic box necessary for measuring the reactive near field of an ESPAR antenna. The reflectivity of the absorber placed in close proximity to an antenna is inversely proportional to the distance between the antenna and the absorber. For carbon filled urethane foam tapered absorbers, we find that the backscattered reflection characteristics mainly depend on their tapered height rather than the thickness of absorber base. As a result, we show that carbon filled urethane foam pyramidal and wave surface shaped absorbers can be used to make reactive-field anechoic boxes. A prototype of a reactive-field anechoic box is presented and the distance from the absorber to the antenna is reduced to a wavelength. The prototype is verified by comparing its performance with that obtained from a large anechoic chamber.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_7_1451/_p
Salinan
@ARTICLE{e85-c_7_1451,
author={Qing HAN, Keizo INAGAKI, Kyouichi IIGUSA, Robert SCHLUB, Takashi OHIRA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Reactive-Field Anechoic Box for ESPAR Antenna Measurement},
year={2002},
volume={E85-C},
number={7},
pages={1451-1459},
abstract={Reactive near field reflection characteristics of commercial RF absorbers are investigated to determine the minimum size of a reactive-field anechoic box necessary for measuring the reactive near field of an ESPAR antenna. The reflectivity of the absorber placed in close proximity to an antenna is inversely proportional to the distance between the antenna and the absorber. For carbon filled urethane foam tapered absorbers, we find that the backscattered reflection characteristics mainly depend on their tapered height rather than the thickness of absorber base. As a result, we show that carbon filled urethane foam pyramidal and wave surface shaped absorbers can be used to make reactive-field anechoic boxes. A prototype of a reactive-field anechoic box is presented and the distance from the absorber to the antenna is reduced to a wavelength. The prototype is verified by comparing its performance with that obtained from a large anechoic chamber.},
keywords={},
doi={},
ISSN={},
month={July},}
Salinan
TY - JOUR
TI - Reactive-Field Anechoic Box for ESPAR Antenna Measurement
T2 - IEICE TRANSACTIONS on Electronics
SP - 1451
EP - 1459
AU - Qing HAN
AU - Keizo INAGAKI
AU - Kyouichi IIGUSA
AU - Robert SCHLUB
AU - Takashi OHIRA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2002
AB - Reactive near field reflection characteristics of commercial RF absorbers are investigated to determine the minimum size of a reactive-field anechoic box necessary for measuring the reactive near field of an ESPAR antenna. The reflectivity of the absorber placed in close proximity to an antenna is inversely proportional to the distance between the antenna and the absorber. For carbon filled urethane foam tapered absorbers, we find that the backscattered reflection characteristics mainly depend on their tapered height rather than the thickness of absorber base. As a result, we show that carbon filled urethane foam pyramidal and wave surface shaped absorbers can be used to make reactive-field anechoic boxes. A prototype of a reactive-field anechoic box is presented and the distance from the absorber to the antenna is reduced to a wavelength. The prototype is verified by comparing its performance with that obtained from a large anechoic chamber.
ER -