Presentation 2012-12-01
Evaluation of a Coaxial Tube Shape Suitable for PIM Measurement using Standing-Wave Coaxial Tube Method
Daijiro ISHIBASHI, Nobuhiro KUGA,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper evaluated the influence of characteristic impedance of the used coaxial tube on PIM measurement. First the PIM levels were observed using the coaxial tubes with 33Ω and 50Ω impedance. It showed effect of the different characteristic impedance influences only coupling strength. When the observed PIM level of 50Ω coaxial tube was calculated by coupling strength from one of 33Ω coaxial tube, the result of 50Ω coaxial tube was about 5dB higher than one of 33Ω coaxial tube. For investigation of the reason, coupling strength was evaluated when the coaxial tubes with different impedance were used. By the characteristic impedance both amplitude and frequency of maximum coupling strength changed. Here the change of the frequency could be calculated by the fringing capacitance and the electrical length expansion. It was denoted that the calculation might help a decision of a suitable length of the specimen and a suitable coaxial tube for PIM measurement.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Passive intermodulation / Nonlinearity / Coaxial tube / Noncontact / Coupling strength
Paper # EMD2012-79
Date of Issue

Conference Information
Committee EMD
Conference Date 2012/11/23(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair
Vice Chair
Secretary
Assistant

Paper Information
Registration To Electromechanical Devices (EMD)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of a Coaxial Tube Shape Suitable for PIM Measurement using Standing-Wave Coaxial Tube Method
Sub Title (in English)
Keyword(1) Passive intermodulation
Keyword(2) Nonlinearity
Keyword(3) Coaxial tube
Keyword(4) Noncontact
Keyword(5) Coupling strength
1st Author's Name Daijiro ISHIBASHI
1st Author's Affiliation Faculty of Engineering, Yokohama National University()
2nd Author's Name Nobuhiro KUGA
2nd Author's Affiliation Faculty of Engineering, Yokohama National University
Date 2012-12-01
Paper # EMD2012-79
Volume (vol) vol.112
Number (no) 332
Page pp.pp.-
#Pages 4
Date of Issue