학술논문

Transparent wave absorber using resistive thin film at V-band frequency
Document Type
Periodical
Source
IEEE Transactions on Microwave Theory and Techniques IEEE Trans. Microwave Theory Techn. Microwave Theory and Techniques, IEEE Transactions on. 47(7):1137-1141 Jul, 1999
Subject
Fields, Waves and Electromagnetics
Transistors
Reflection
Indium tin oxide
Positron emission tomography
Absorption
Optical films
Frequency measurement
Sheet materials
Protection
Plastic films
Language
ISSN
0018-9480
1557-9670
Abstract
We present a realization of a transparent wave absorber effective for use at V-band frequency. First, we propose a structure of the transparent wave absorber consisting of spacer (polycarbonate) and two transparent resistive sheets (polyethylene-terephthalate deposited with indium-tin-oxide) used as reflection and absorption films. Second, a design chart for this type of wave absorber is shown. Third, a design method and manufacturing process of the transparent wave absorber are described, particularly for V-band frequency. As a result, the measurement of reflection loss of the absorber indicates that a peak absorption of 32-38 dB is attained at a target frequency of 60 GHz.