IEICE TRANSACTIONS on Electronics
Non-contact PIM Evaluation Method Using a Standing Wave Coaxial Tube
Summary :
In this paper, a contactless measurement technique of passive intermodulation (PIM) using a coaxial tube excited with standing waves is proposed. The principle of the proposed method is described using a two-port network model with the lumped resistances representing the losses of a specimen and test equipment. To show its validity, a test using nickel wires producing high PIM is carried out, and its PIM-dependency on DUT-position in the coaxial tube is simulated using the FDTD method. The simulated result shows a good agreement to the experiment. Through the examination, it is found that the power consumption by the PIM source in a specimen is essential in PIM production, and sensitive PIM detection does not require good matching condition. Finally, the relation between PIM-source size and generated PIM level is also examined. The result shows that at least 18 dB-PIM reduction is obtained by PIM source size in a half-wavelength conductive wire.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E95-C No.9 pp.1508-1514
- Publication Date
- 2012/09/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E95.C.1508
- Type of Manuscript
- Special Section PAPER (Special Section on Recent Development of Electro-Mechanical Devices - Papers selected from International Session on Electro-Mechanical Devices 2011 (IS-EMD2011) and other recent research results -)
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Daijiro ISHIBASHI, Nobuhiro KUGA, "Non-contact PIM Evaluation Method Using a Standing Wave Coaxial Tube" in IEICE TRANSACTIONS on Electronics,
vol. E95-C, no. 9, pp. 1508-1514, September 2012, doi: 10.1587/transele.E95.C.1508.
Abstract: In this paper, a contactless measurement technique of passive intermodulation (PIM) using a coaxial tube excited with standing waves is proposed. The principle of the proposed method is described using a two-port network model with the lumped resistances representing the losses of a specimen and test equipment. To show its validity, a test using nickel wires producing high PIM is carried out, and its PIM-dependency on DUT-position in the coaxial tube is simulated using the FDTD method. The simulated result shows a good agreement to the experiment. Through the examination, it is found that the power consumption by the PIM source in a specimen is essential in PIM production, and sensitive PIM detection does not require good matching condition. Finally, the relation between PIM-source size and generated PIM level is also examined. The result shows that at least 18 dB-PIM reduction is obtained by PIM source size in a half-wavelength conductive wire.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.1508/_p
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@ARTICLE{e95-c_9_1508,
author={Daijiro ISHIBASHI, Nobuhiro KUGA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Non-contact PIM Evaluation Method Using a Standing Wave Coaxial Tube},
year={2012},
volume={E95-C},
number={9},
pages={1508-1514},
abstract={In this paper, a contactless measurement technique of passive intermodulation (PIM) using a coaxial tube excited with standing waves is proposed. The principle of the proposed method is described using a two-port network model with the lumped resistances representing the losses of a specimen and test equipment. To show its validity, a test using nickel wires producing high PIM is carried out, and its PIM-dependency on DUT-position in the coaxial tube is simulated using the FDTD method. The simulated result shows a good agreement to the experiment. Through the examination, it is found that the power consumption by the PIM source in a specimen is essential in PIM production, and sensitive PIM detection does not require good matching condition. Finally, the relation between PIM-source size and generated PIM level is also examined. The result shows that at least 18 dB-PIM reduction is obtained by PIM source size in a half-wavelength conductive wire.},
keywords={},
doi={10.1587/transele.E95.C.1508},
ISSN={1745-1353},
month={September},}
Copy
TY - JOUR
TI - Non-contact PIM Evaluation Method Using a Standing Wave Coaxial Tube
T2 - IEICE TRANSACTIONS on Electronics
SP - 1508
EP - 1514
AU - Daijiro ISHIBASHI
AU - Nobuhiro KUGA
PY - 2012
DO - 10.1587/transele.E95.C.1508
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 9
JA - IEICE TRANSACTIONS on Electronics
Y1 - September 2012
AB - In this paper, a contactless measurement technique of passive intermodulation (PIM) using a coaxial tube excited with standing waves is proposed. The principle of the proposed method is described using a two-port network model with the lumped resistances representing the losses of a specimen and test equipment. To show its validity, a test using nickel wires producing high PIM is carried out, and its PIM-dependency on DUT-position in the coaxial tube is simulated using the FDTD method. The simulated result shows a good agreement to the experiment. Through the examination, it is found that the power consumption by the PIM source in a specimen is essential in PIM production, and sensitive PIM detection does not require good matching condition. Finally, the relation between PIM-source size and generated PIM level is also examined. The result shows that at least 18 dB-PIM reduction is obtained by PIM source size in a half-wavelength conductive wire.
ER -
English
