Measurement of complex permittivity and permeability at millimeter wavelength using a free space method

2003 ◽  
Author(s):  
Y. Iijima ◽  
T. Tanaka ◽  
M. Kimura ◽  
R. Sato
Keyword(s):  
Complex Permittivity ◽  
Free Space ◽  
Millimeter Wavelength ◽  
Permittivity And Permeability ◽  
Free Space Method ◽  
Space Method

On the measurement of the complex permittivity of layers embedded in a multilayered dielectric material with the use of a free-space method

2002 ◽  
Vol 33 (6) ◽  
pp. 422-426 ◽  
Author(s):  
Israel Garcia-Ruiz ◽  
Carlos D. Aviles-Castro ◽  
Hildeberto Jardón-Aguilar ◽  
Juan Guerra-Vargas
Keyword(s):  
Complex Permittivity ◽  
Free Space ◽  
Dielectric Material ◽  
Free Space Method ◽  
Space Method

Fabrication of graphene-magnetite multi-granule nanocluster composites for microwave absorption application

2019 ◽  
Vol 53 (28-30) ◽  
pp. 4097-4103
Author(s):  
Boo H An ◽  
Bum C Park ◽  
Hamad A Yassi ◽  
Ji S Lee ◽  
Jung-Rae Park ◽  
...  
Keyword(s):  
Absorption Coefficient ◽  
Microwave Absorption ◽  
Free Space ◽  
Relative Permittivity ◽  
Horn Antennas ◽  
Microwave Absorbing Properties ◽  
X Band ◽  
Permittivity And Permeability ◽  
Free Space Method ◽  
Space Method

Ferrite multi-granule nanoclusters are fabricated for microwave absorption materials in different sized particles and granules by modified polyol process. Various sizes of ferrite nanoclusters are placed on graphene-based composites and the behavior of their microwave absorbing properties is studied. The absorbing properties are measured using the free-space method with two horn antennas for X-band range (8.2 GHz–12.4 GHz). Relative permittivity and permeability values are calculated in measured frequency domain. The absorption coefficient changes by forming ferrite-graphene composites are presented as well.

A simple free-space method for measuring the complex permittivity of single and compound dielectric materials

2000 ◽  
Vol 26 (2) ◽  
pp. 117-119 ◽  
Author(s):  
S. Biju Kumar ◽  
U. Raveendranath ◽  
P. Mohanan ◽  
K. T. Mathew ◽  
M. Hajian ◽  
...  
Keyword(s):  
Complex Permittivity ◽  
Free Space ◽  
Dielectric Materials ◽  
Free Space Method ◽  
Space Method
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