Microstrip Propagation on Magnetic Substrates - Part I: Design Theory

Pucel, R.A.; Masse, D.

doi:10.1109/tmtt.1972.1127749

Cited by 116 publications

(35 citation statements)

References 8 publications

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“…Solving Equations (9) ∼ (12), the effective permeability can be determined. Then, the permeability of thin film can be obtained by Equation (8). And the perturbation of the thin film (∆S 21 ) can be expressed as…”

Section: Microstrip Transmission Methodsmentioning

confidence: 99%

Measure the Complex Permeability of Ferromagnetic Thin Films: Comparison Shorted Microstrip Method With Microstrip Transmission Method

Wu¹,

Tang²,

Xu³

et al. 2009

PIER Letters

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Abstract-In this paper, two broadband measurement methods, shorted microstrip method and microstrip trnasmission method, are discussed, and the complex permeability of ferromagnetic thin films is measured from 100 MHz to 18 GHz. The S-parameters of the two measurement fixtures are measured by vector network analyzer (VNA). The perturbations of the thin film loaded in the measurement fixture are analyzed; the discontinuity between coaxial and microstrip is considered; the effective permeability is deduced from measured Sparameters; the permeability of ferromagnetic thin films is extracted from effective permeability by using conformal mapping. The results show that the experimental results agree with the theoretical ones closely, and higher measurement sensitivity and accuracy are achieved by using shorted microstrip method.

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Section: Microstrip Transmission Methodsmentioning

confidence: 99%

Measure the Complex Permeability of Ferromagnetic Thin Films: Comparison Shorted Microstrip Method With Microstrip Transmission Method

Wu¹,

Tang²,

Xu³

et al. 2009

PIER Letters

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show abstract

“…The design parameters for the microstrip line at 10 GHz, are determined from the design described in literature [12][13][14][15][16][17][18][19][20]. The dispersive effective permittivity, ε eff (f ), and permeability µ eff (f ), of the microstrip line geometry for demagnetized state, are computed from the following equations as [15,18] …”

Section: Microstrip Linementioning

confidence: 99%

“…The dispersive effective permittivity, ε eff (f ), and permeability µ eff (f ), of the microstrip line geometry for demagnetized state, are computed from the following equations as [15,18] …”

Section: Microstrip Linementioning

confidence: 99%

Em Transmission Response of Microstrip Notch Filter on Obliquely Magnetized Magneto-Dielectric Substrate in Xband Under Influence of Low Magnitude of External Dc Magnetic Field

Borah¹,

Bhattacharyya²

2011

PIER M

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Abstract-A tunable microwave notch filter is developed on magnetodielectric material having low saturation magnetization to attain low external dc magnetic field for biasing. A simple microstrip line at 10 GHz is developed on nickel ferrite/low density polyethylene nanocomposite system as substrates and its microwave transmission response is studied in X-band. Composite system is developed by dispersing nano sized nickel ferrite (∼6.63 nm) in low density polyethylene to obtain a homogeneous flexible substrate. Saturation magnetization of 4% volume fraction of the composite is found to be 1.8745 emu/g. Tunability of Q value and insertion loss is studied with magnitude of external dc magnetic field and at different angles of its orientation with the axial plane. A very low field up to 250 G is sufficient to tune the selectivity. An insertion loss of ∼ −30 dB and Q ∼ 375 at 10.2 GHz is observed. The interaction of magneto static modes with orientation of the applied dc magnetic bias with respect to rf magnetic field is discussed with couple mode theory. Good cutoff behaviour of more than 28 dB is observed at magnetic field angles from 23.52 • to 34.21 • . The experimental and theoretical couplings show close proximity.

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“…It was also possible to use asymmetrical lines (ASL) design programmes that had been prepared and which have been given in other papers. [2][3][4][5][6] The following minimum values of coupling gaps were used; in the strip resonator, 200 #m, and in the directional coupler 50/m. 6.…”

Section: Design Of Gunn Oscillators In Thick-film Technologymentioning

confidence: 99%

“…The remaining parameters of the circulators were determined using the formulae given by Pucel (6) and Matthaei (5). The wave impedance of the microstrips Zo, was assumed to be 50 Ohms.…”

Section: Introductionmentioning

confidence: 99%

Thick-film non-reciprocal ferrite elements and gunn hybrid oscillators in modified thick-film technology

1984

Microelectronics Reliability

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In this paper are presented design and performance data on microwave Y--circulators and Gunn oscillators produced in thick-film technology. Y-circulators have been designed for central frequencies of 3, 5, and 10 GHz with a satisfactory accuracy. New Polish made ferrite substrates, G-32, G-84 K, and G-175 have been used.The Gunn oscillator was designed and corrected to the resonant frequencies 3, 5 and 6 GHz based on the integrated package diodes CXYP -43 A and BXYP -45 C (made in Poland). The results of the investigations are presented in tabular and graphical form.

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Microstrip Propagation on Magnetic Substrates - Part I: Design Theory

Cited by 116 publications

References 8 publications

Measure the Complex Permeability of Ferromagnetic Thin Films: Comparison Shorted Microstrip Method With Microstrip Transmission Method

Measure the Complex Permeability of Ferromagnetic Thin Films: Comparison Shorted Microstrip Method With Microstrip Transmission Method

Em Transmission Response of Microstrip Notch Filter on Obliquely Magnetized Magneto-Dielectric Substrate in Xband Under Influence of Low Magnitude of External Dc Magnetic Field

Thick-film non-reciprocal ferrite elements and gunn hybrid oscillators in modified thick-film technology

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