Comparison of scanning evanescent microwave microscopy with co-planar waveguide methods of characterization of Ba&lt;inf&gt;0.5&lt;/inf&gt;Sr&lt;inf&gt;0.5&lt;/inf&gt;TiO&lt;inf&gt;3&lt;/inf&gt; thin films

Barker, Duncan; Suherman, P. M.; Jackson, Tim; Lancaster, M.J.

doi:10.1109/isaf.2009.5307571

Cited by 3 publications

(6 citation statements)

References 15 publications

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“…Most of the papers published in the near-field microwave microscopy present qualitative characterizations [7][8][9][10], where no complex permittivity values are given. Some other publications on the near-field microscopy present the quantitative measurement of complex permittivity of dielectric samples [11][12][13]. The difference in the complex permittivity values presented in that paper and those referenced by other measurement techniques is quite high (15% in average).…”

Section: Introductionmentioning

confidence: 93%

“…This surface is determined by measuring the lateral electric field radiation from the tip used in the measurements. A second paper published by Barker et al [12] on the quantitative characterization of dielectric samples with the technique of near-field microscopy also had a measurement uncertainty of over 25% on the values of relative permittivity and loss tangent. Thus the shape of the sample outside the area 25 mm 2 does not change the response of our probe because it is not seen by the electric field of the tip.…”

Section: V C H a R A C T E R I Z A T I O N O F M A T E R I A L Smentioning

confidence: 99%

“…Six TM modes between 4 and 20 GHz were selected among the frequencies that are perturbed in the presence of the samples. Thus, the real advantages of this technique compared with other quantitative characterization techniques based on nearfield microscopy presented in the literature [10][11][12][13]16] are its ability of performing characterizations on multiple frequency points and the low measurement uncertainties. The standard material is also the Alumina and the sample to be characterized is the FERRO A6M (LTCC material).…”

Section: M U L T I -F R E Q U E N C Y C a R A C T E R I Z A T I O Nmentioning

confidence: 99%

“…However, the standard material used in our wideband characterization (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16) is Alumina and the complex permittivity of this type of materials does not change too much in our frequency band. However, the standard material used in our wideband characterization (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16) is Alumina and the complex permittivity of this type of materials does not change too much in our frequency band.…”

Section: M U L T I -F R E Q U E N C Y C a R A C T E R I Z A T I O Nmentioning

confidence: 99%

See 3 more Smart Citations

Near-field microwave microscopy for the characterization of dielectric materials

Rammal¹,

Tantot²,

Delhote³

et al. 2014

Int. J. Microw. Wireless Technol.

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Section: Introductionmentioning

confidence: 93%

Section: V C H a R A C T E R I Z A T I O N O F M A T E R I A L Smentioning

confidence: 99%

Section: M U L T I -F R E Q U E N C Y C a R A C T E R I Z A T I O Nmentioning

confidence: 99%

Section: M U L T I -F R E Q U E N C Y C a R A C T E R I Z A T I O Nmentioning

confidence: 99%

See 2 more Smart Citations

Near-field microwave microscopy for the characterization of dielectric materials

Rammal¹,

Tantot²,

Delhote³

et al. 2014

Int. J. Microw. Wireless Technol.

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show abstract

“…The structure of an open‐ended coaxial cavity resonator is frequently utilized in moisture sensors, permittivity sensors, and an electron microscope used for analyzing dielectric characteristics. However, the process of designing such a resonator has been complicated, and in most cases, no sufficient explanation on it has been provided.…”

Section: Introductionmentioning

confidence: 99%

Study on the empirical design of open‐ended coaxial cavity resonator

Lee

Kim

Hur

2014

Micro & Optical Tech Letters

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This article is a study of an empirical design of an open‐ended coaxial cavity resonator. The coaxial cavity resonator can be designed using the coaxial transmission‐line theory. It can be done by using the radius of the inner conductor, the inner radius, and the length of the resonator. However, the basic coaxial transmission‐line theory can be seen that the characteristics of the resonant frequency and the Q value are varied by the change of length, regardless of the value of radius of the inner conductor and inner radius of the resonator. We find out the impact of radius of the inner conductor, inner radius of the resonator, and the length of the resonator parameter and propose the optimized empirical resonator design method by reducing the error between the theoretical value and the design value. High frequency structure simulator was used for simulation and the material of the resonator was designed with a copper. Based on the simulation, several resonators are fabricated by the size of 14 mm for the radius of inner conductor, 2, 5, and 10 mm, respectively, for the inner radius of resonator, and 8.5 mm for the length of the resonator. The resonant frequencies of the produced resonators were measured at 6.1, 5.7, and 6.5 GHz, respectively. According to the result of simulation and measurement, we know that we can design the relatively exact open‐ended coaxial cavity resonator by applying the basic coaxial transmission‐line theory directly when the length of the resonator is less than 10 mm, and adding the correction factor of 0.5 GHz to the calculated resonant frequency in case of more than 10 mm of the length of the resonator. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:606–610, 2014

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Design of An Open-Ended Coaxial Cavity Resonator

Lee¹,

Kim²,

Hur³

2013

The Journal of the Institute of Webcasting, Internet and Teleco

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This paper is a study of an empirical design of an open-ended coaxial cavity resonator. It can be done by using the radius of the inner conductor, the inner radius and the length of the resonator. However, the basic coaxial transmission-line theory can be seen that the characteristics of the resonant frequency and the Q value are varied by the change of length, regardless of the value of radius of the inner conductor and inner radius of the resonator. We find out the impact of radius of the inner conductor, inner radius of the resonator and the length of the resonator parameter and propose the optimized empirical resonator design method by reducing the error between the theoretical value and the design value. Based on the simulation, several resonators are fabricated by the size of 14 mm for the radius of inner conductor, 2 mm, 5 mm, 10 mm respectively for the inner radius of resonator, and 8.5 mm for the length of the resonator. The resonant frequencies of the produced resonators were measured at 6.1, 5.7, 6.5 GHz respectively. According to the result of simulation and measurement, we know that we can design the relatively exact open-ended coaxial cavity resonator by applying the basic coaxial transmission-line theory directly when the length of the resonator is less than 10 mm, and adding the correction factor of 0.5 GHz to the calculated resonant frequency in case of more than 10 mm of the length of the resonator.

show abstract

Comparison of scanning evanescent microwave microscopy with co-planar waveguide methods of characterization of Ba<inf>0.5</inf>Sr<inf>0.5</inf>TiO<inf>3</inf> thin films

Cited by 3 publications

References 15 publications

Near-field microwave microscopy for the characterization of dielectric materials

Near-field microwave microscopy for the characterization of dielectric materials

Study on the empirical design of open‐ended coaxial cavity resonator

Design of An Open-Ended Coaxial Cavity Resonator

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