Analysis of twin ferrite toroidal phase shifter in grooved waveguide

Wen, Jihong; Xiong, Yong Zhong; Shi, Minmin; Chen, Guo-Fong; Yu, Ming-De

doi:10.1109/22.285053

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…Despite the figure of merit of the present device, defined as the ratio between the differential phase shift and the average insertion losses, is still low because it is nearly the same as for the device of ref , the Δφ/ L and Δ S / L have been significantly improved. Finaly, the performances of our device are comparable to those of conventional devices based on ferrites, which exhibit Δφ/ L in the range 20–53 deg·cm –1 for frequencies as high as 10 GHz. − …”

supporting

confidence: 51%

Electrodeposition Growth of Nanowire Arrays with Height Gradient Profiles for Microwave Device Applications

Carreon-Gonzalez

Medina²,

Piraux³

et al. 2011

Nano Lett.

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A simple and nonexpensive adapted dip-coating technique is presented and used to fabricate arrays of magnetic nanowires with a linear varying height profile. This approach allows controlling the wire height from tenths of nanometers up to several micrometers. Furthermore, the main parameters of this height gradient can be controlled, such as the maximum wire height and the lateral span of the wire array, which can be predicted with excellent accuracy using a proposed analytical model. Moreover, we show that by sequential electrodeposition with dip-coating, arrays of these height varying wires can be grown. This technique represents a novel method to fill porous templates with controlled spatial growth, leading to the fabrication of novel structures and providing control over structural features on the nanoscale level. In particular, the use of these asymmetrically loaded magnetic nanowired substrates to obtain improved microwave nonreciprocal behavior is shown for a microwave phase shifter.

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supporting

confidence: 51%

Electrodeposition Growth of Nanowire Arrays with Height Gradient Profiles for Microwave Device Applications

Carreon-Gonzalez

Medina²,

Piraux³

et al. 2011

Nano Lett.

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“…2͑a͒ and 2͑b͒ and Fig. 5,11,19,20 In conclusion, we have fabricated a planar fully integrated NRML on a MNWS, which is based on a field displacement mechanism and is of potential use as planar microwave nonreciprocal phase shifter operating around 50 GHz. For instance, for H = 9 kOe ⌬ / L is negative for f Ͻ f r and positive for f Ͼ f r as E y is concentrated in zones 1 and 3 for f Ͻ f r and f Ͼ f r , respectively.…”

Section: ͑6͒mentioning

confidence: 91%

Differential phase shift in nonreciprocal microstrip lines on magnetic nanowired substrates

et al. 2010

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Impedance-matching technique for a latching ferrite variable polarizer in a circular waveguide

Che

Yung

Sha

2000

Microw. Opt. Technol. Lett.

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A study is conducted on an impedance‐matching technique for the latching ferrite variable polarizer in a circular cylindrical waveguide. Using the mode‐matching method, a formula is developed for the calculation of the design parameters of a λ/4 impedance‐matching transformer. Excellent agreement is observed between the analytical result and measurement. Furthermore, an improved impedance‐matching technique is introduced to increase the bandwidth from 4.06 to 14.5%. This provides qualitative guidance for the design of analogous devices. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 366–368, 2000.

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Analysis of twin ferrite toroidal phase shifter in grooved waveguide

Cited by 8 publications

References 4 publications

Electrodeposition Growth of Nanowire Arrays with Height Gradient Profiles for Microwave Device Applications

Electrodeposition Growth of Nanowire Arrays with Height Gradient Profiles for Microwave Device Applications

Differential phase shift in nonreciprocal microstrip lines on magnetic nanowired substrates

Impedance-matching technique for a latching ferrite variable polarizer in a circular waveguide

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