Investigations of the double isolator using three-strip ferrite coupled line

Marynowski, Wojciech; Mazur, J.

doi:10.1109/comite.2010.5480432

Cited by 5 publications

(6 citation statements)

References 10 publications

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“…2(b). However, due to the double signal passing through the ferrite section, the losses of the structure are two times ✹ ❆❞✈❛♥❝❡❞ ❊•❡❝tr♦♠❛❣♥❡t✐❝ ❲❛✈❡s In order to determine the scattering parameters of the FCL junction, two different hybrid techniques have been proposed and developed ( [12,[16][17][18]) (see Fig. 3).…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Nonreciprocal Devices Utilizing Longitudinally Magnetized Ferrite Coupled Lines

Kusiek¹,

Marynowski²,

Lech³

et al. 2015

Advanced Electromagnetic Waves

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This chapter presents authors' recent research on the nonreciprocal devices utilizing longitudinally magnetized ferrite coupled line (FCL) junction. The principle of operation of FCL junction is explained and the hybrid techniques of analysis are shown. Numerical and experimental results concerning the nonreciprocal devices utilizing the different configurations of FCL junctions are presented and discussed.

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Section: Formulation Of the Problemmentioning

confidence: 99%

Nonreciprocal Devices Utilizing Longitudinally Magnetized Ferrite Coupled Lines

Kusiek¹,

Marynowski²,

Lech³

et al. 2015

Advanced Electromagnetic Waves

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“…It should be noted that proposed model allows one for fast and accurate determination of an optimal length of CFCL section. Moreover, having calculated scattering matrix of such junction, it can be easily used to predict the behavior of nonreciprocal devices, e.g., isolators and circulators employing proposed ferrite coupled line junction [19,25]. …”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…In the analysis of the proposed structure the hybrid technique combining method-of-moment (MoM) with coupled-mode method (CMM) [24,25] is applied. The analysis using MoM/CMM involves introducing an isotropic basic guide.…”

Section: Introductionmentioning

confidence: 99%

Investigations of Cylindrical Ferrite Coupled Line Junction Using Hybrid Technique

Kusiek¹,

Marynowski²,

Mazur³

2011

PIER

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Abstract-In this paper, a novel longitudinally magnetized cylindrical ferrite coupled line (CFCL) junction is proposed. In comparison to planar ferrite coupled line (FCL) configurations, which are well known in literature, in such structure the higher gyromagnetic coupling occurs. This allows to obtain the required in FCL devices Faraday rotation angle π/4 for the ferrite with shorter length and lower value of magnetization. As a result the total insertion losses in the ferrite section can be reduced using the proposed topology. In the analysis of the proposed CFCL junction a hybrid technique combining method of moments and coupled mode method (MoM/CMM) is applied. The results are compared with the ones obtained from commercial software HFSS and a good agreement is obtained.

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“…In this paper we consider the previously proposed section of multilayer FCL [20,21] shown in Fig. 1(a).…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work [20,21] the considered junction was investigated with the use of coupled-mode method (CMM). In this paper the wave parameters and fields distributions of two fundamental modes propagated in the ferrite and dielectric sections are determined using spectral domain approach (SDA).…”

Section: Introductionmentioning

confidence: 99%

Study of Nonreciprocal Devices Using Three-Strip Ferrite Coupled Line

Marynowski¹,

Mazur²

2011

PIER

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Abstract-This paper presents the investigations of nonreciprocal devices employing a novel ferrite coupled line junction. The structure is designed using coplanar line technology with the ground half-planes reduced to the strips. The investigated junction is composed of one ferrite section placed in between of two dielectric sections. In the ferrite section the longitudinally magnetized ferrite slab is located at the top or the bottom of the strips and is covered with the dielectric layers. In the dielectric sections the ports of the junctions are located. The wave parameters and field distributions of the modes propagated in the dielectric and ferrite sections are obtained from spectral domain approach. In order to determine the scattering matrix of the junction the mode matching method is utilized. The investigation of the circulator and isolator designed based on the Smatrix of the junction are presented. The obtained results are verified by comparing them with HFSS simulations and own measurements of the fabricated devices. In both cases a very good agreement is observed.

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Investigations of the double isolator using three-strip ferrite coupled line

Cited by 5 publications

References 10 publications

Nonreciprocal Devices Utilizing Longitudinally Magnetized Ferrite Coupled Lines

Nonreciprocal Devices Utilizing Longitudinally Magnetized Ferrite Coupled Lines

Investigations of Cylindrical Ferrite Coupled Line Junction Using Hybrid Technique

Study of Nonreciprocal Devices Using Three-Strip Ferrite Coupled Line

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