講演抄録/キーワード |
講演名 |
2012-01-10 15:15
Radiation Efficiency Measurement Based on Wheeler Method Using 90-degree 3dB Hybrid Coupler and Sliding Short ○Nozomu Ishii・Yohei Kobayashi(Niigata Univ.) AP2011-139 |
抄録 |
(和) |
(まだ登録されていません) |
(英) |
A measurement technique of arbitrary reflection coefficient using 90-degree 3dB hybrid coupler and sliding short is proposed to reduce the uncertainty of the measurement. The measurement system is the same as that with 180-degree 3dB hybrid coupler and sliding short proposed by us. In principle, the reflection coefficients of reference standard and device under test (DUT) are summed up in the transmission coefficient of the measurement system, the reflection coefficient of DUT can be extracted by using the sliding short as the reference standard. This technique can be applicable the measurement of the radiation efficiency of the antenna based on the Wheeler method. To evaluate the uncertainty of efficiency measurement leads to the validity of proposed technique. |
キーワード |
(和) |
/ / / / / / / |
(英) |
90-degree 3dB hybrid coupler / Sliding short / Wheeler method / Radiation efficiency / Uncertainty / / / |
文献情報 |
信学技報, vol. 111, no. 372, AP2011-139, pp. 27-28, 2012年1月. |
資料番号 |
AP2011-139 |
発行日 |
2012-01-03 (AP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
AP2011-139 |