Analysis and Measurements of Nonradiative Dielectric Waveguide Bends

Yoneyama, T.; Tamaki, Hiroyuki; Nishida, Shigeo

doi:10.1109/tmtt.1986.1133460

Cited by 43 publications

(11 citation statements)

References 5 publications

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“…Рябов. Для нашей задачи изгибы ПЭДВ, были рассмотрены в работе Т. Йонеямы в работе [2], при этом результаты ограничены узкой областью частот и размеров волновода. Приведем описание метода, который был предложен автором в работе [7] и в результате был получен патент на устройство поворота [8].…”

Section: 25 unclassified

“…Для таких систем полуэкранированный диэлектрический волновод (ПЭДВ) или NRD-waveguide, как его называют в зарубежной периодике, является хорошим решением, удовлетворяющим множеству показателей качества. Конструкции узлов на ПЭДВ были предложены в работах [1] и [2] еще в 1983 и 1986 году, а пути решения в работе [3] в 2012 г.…”

Section: Introductionunclassified

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Устройства Поворота На Полуэкранированных Диэлектрических Волноводах

Крутских¹,

Мирзоян²,

Ушков³

2021

Наука России: Цели И Задачи

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В статье приводятся результаты исследования конструкций устройств поворота на полуэкранирванном диэлектрическом волноводе для топологического (в плоскости пластин) и нормального (в плоскости перпендикулярной плоскости пластин) устройства. Эта задача сформирована потребостью создания различных устройств в том числе антенных с сложной формой поверхности. Для решения задачи применялись в основном методы физического и численного моделирования, проверялись физическим экспериментом. Было показано, что нормальный изгиб в отличии от топологического даже на малых радиусах имеет малые потери на излучение и отражение.

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Section: 25 unclassified

Section: Introductionunclassified

Устройства Поворота На Полуэкранированных Диэлектрических Волноводах

Крутских¹,

Мирзоян²,

Ушков³

2021

Наука России: Цели И Задачи

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“…Non-radiative dielectric waveguide (NRD guide) [1] is considered a promising platform because compact millimeterwave circuits can be found thanks to their non-radiative nature. The NRD guide has attracted much attention since Yoneyama et al proposed it, and various NRD guide devices in the millimeter-wave band have been proposed [2,3,4,5,6,7,8,9,10,11,12,13]. In general, NRD guide supports two orthogonal modes referred to LSM 01 and LSE 01 , as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of NRD guide devices using 2D full-vectorial finite element method

Bashir

Morimoto

Iguchi

et al. 2021

IEICE Electron. Express

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In this paper, we propose an optimal design approach based on a concept of mosaic-like structure for achieving high performance NRD devices. In order to improve design efficiency, we employ the recently proposed two-dimensional full vectorial finite element method (2D-FVFEM) which can accurately model 3D structure of NRD as a numerical simulation method. As an optimization method, we employ either direct binary search (DBS) algorithm or genetic algorithm (GA) depending on design problems. In order to show the usefulness of our approach, design examples of crossing and T-branch waveguides are considered and high transmission efficiency greater than 99.9% for crossing waveguide and 49.8%:49.8% for T-branch waveguide is achieved. The numerical results by 2D-FVFEM are verified by 3D-FVFEM.

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“…Attraction and repulsion of the interacting fields is experimentally demonstrated by a direct timeresolved observation of coupled mode propagation at optical frequencies. The complex amplitude of guided modes with different polarization states, coupled by waveguide bending in a ring resonator [2], is measured by a novel time domain technique based on polarization-sensitive Optical Low-Coherence Interferometry (OLCI). Experimental results are interpreted by means of the Coupled Mode Theory (CMT) [3], and conditions for propagation at velocity well above the vacuum speed of light c are discussed.…”

mentioning

confidence: 99%

“…2, consists of a ring resonator with radius coupled with a bus waveguide by a field coupling coefficient ÿjt. The elements of the matrix H, describing the relations between the polarization state of the input fields and the fields outgoing the resonator after n (n 1) roundtrips, can be expressed as h ee;n h mm;n ÿt 2 z ÿn cosn ÿ jR sinn; (2) h em;n h me;n ÿt 2 z ÿn ÿjS sinn;…”

mentioning

confidence: 99%

Direct Observation of Subluminal and Superluminal Velocity Swinging in Coupled Mode Optical Propagation

Melloni

Morichetti

2007

Phys. Rev. Lett.

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A direct measure of the periodical power exchange between optical coupled modes with different polarization states is presented. The effects of the coupling on the relative velocity of the two modes are experimentally observed and analytically explained. Coupled modes are discovered to periodically attract and repel under the effect of swinging subluminal and superluminal regimes. The measurement technique is based on a novel polarization-sensitive scheme for optical low-coherence interferometry, providing in time domain the complex amplitudes of the interacting fields.

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Analysis and Measurements of Nonradiative Dielectric Waveguide Bends

Cited by 43 publications

References 5 publications

Устройства Поворота На Полуэкранированных Диэлектрических Волноводах

Устройства Поворота На Полуэкранированных Диэлектрических Волноводах

Optimal design of NRD guide devices using 2D full-vectorial finite element method

Direct Observation of Subluminal and Superluminal Velocity Swinging in Coupled Mode Optical Propagation

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