FDTD solution of Maxwell's equations for an edge slot penetrating adjacent broadwalls of a finite wall thickness waveguide

Kraut, E. A.; Olivier, J.C.; West, J.B.

doi:10.1109/8.362808

Cited by 16 publications

(12 citation statements)

References 17 publications

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“…Расчет и анализ характеристик ВЩА весьма актуален и в наши дни. Это под-тверждается огромным количеством публикаций по этой тематике [например, [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Широкое ис-пользование ВЩА обусловлено их сравнительной простотой, конформностью конструкции и отно-сительно небольшой стоимостью.…”

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Untitled

2016

RADIOFIZ. ELEKTRON.

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Изучаются характеристики излучения электромагнитных волн из заполненного диэлектриком плоского металлического волновода с конечным числом неэквидистантно расположенных, различных по ширине параллельных щелей на одной стороне волновода, возбуждаемого основной волной. Такая структура допускает строгое электродинамическое решение при минимуме известных радиофизических допущений и, как модель, может хорошо соответствовать реальным антеннам, изготовленным из тон-кого фольгированного диэлектрика с длинными, по отношению к длине волны, щелями. Задача решается методом аналитического полуобращения оператора исходной краевой задачи в сочетании с методом моментов. Анализируются ближнее и дальнее поля излучения (Е-и Н-компоненты поля), а также энергетические характеристики отраженного и прошедшего в волновод полей. Ил. 5. Библиогр.: 35 назв.Ключевые слова: электромагнитные волны, волноводно-щелевые антенны, метод моментов, интеграл Фурье, полу-обращение, ближнее и дальнее поля излучения.

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2016

RADIOFIZ. ELEKTRON.

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“…Akibatnya pengaruh ketebalan dinding pemandu gelombang menjadi sangat mempengaruhi kinerja antena dan perlu disertakan dalam proses perancangan. Metode numerik domain waktu beda hingga (finite difference time domain/FDTD) digunakan untuk menyertakan pengaruh ketebalan dinding pemandu gelombang pada [5]. Catina dkk.…”

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“…Pada analisis ini proses komputasi dilakukan para ruang celah dengan memanfaatkan prinsip ekuivalen medan, sehingga proses perhitungan dapat dilakukan dengan lebih cepat daripada menganalisis pada seluruh bagian pemandu gelombang seperti pada [5].…”

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Metode Elemen Hingga dan Elemen Batas untuk Antena Celah pada Pemandu Gelombang

Iswandi¹

2015

Jurnal Nasional Teknik Elektro dan Teknologi Informasi (JNTETI)

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Abstract-In the higher frequency range, the wall-thickness causes more effects to the characteristic of slotted waveguide antenna. This paper presents numerical analysis of slotted waveguide antenna by incorporating the wall-thickness using finite element method for inner part of slot and boundary element method for outer or surface part. By using the field equivalent principle, the computation can be done only at the region of cut waveguide wall. The solution of those methods are employed to calculate the electric field along the slot surface and further use to calculate the equivalent network parameters of slot antenna. The results show the agreement to the published numerical and measurement results in the references.

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“…Full-wave numerical methods have been well developed to analyze the slotted-waveguide antenna [5][6][7][8][9]. However, due to large computation resources required, they usually are applied to analyze radiation by electrically small radome/antenna problems.…”

Section: Introductionmentioning

confidence: 99%

“…There are many methods for solving this kind of problems, such as the high frequency asymptotic methods, full-wave numerical methods and the hybrid full-wave and high frequency methods [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Full-wave numerical methods have been well developed to analyze the slotted-waveguide antenna [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Accurate and Efficient Analysis of Large Antenna Arrays With Radome on a Large Aircraft

Sun¹,

Yang²,

Sheng³

2015

PIER

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Abstract-An accurate and efficient computational approach is presented for analyzing radiation characteristics of large antenna arrays with radome. This approach is based on the hybrid finite elementboundary integral-multilevel fast multipole algorithm (FE-BI-MLFMA). Unlike the conventional singledomain FE-BI-MLFMA, the whole domain of the antenna array with radome is separated into many disconnected domains. A large free space area unavoidable in the single-domain FE-BI-MLFMA is eliminated in this multi-domain FE-BI-MLFMA formulation, thus the number of unknowns is greatly reduced in the presented multi-domain FE-BI-MLFMA approach. Different from the single-domain FE-BI-MLFMA, many integral equations are required in this multi-domain FE-BI-MLFMA. The numerical experiment shows that the presented multi-domain FE-BI-MLFMA is more efficient than the singledomain one while maintaining the same accuracy. A whole complicated system of a slotted-waveguide array with radome mounted on an aircraft is analyzed to further demonstrate the generality and capability of the presented multi-domain FE-BI-MLFMA.

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FDTD solution of Maxwell's equations for an edge slot penetrating adjacent broadwalls of a finite wall thickness waveguide

Cited by 16 publications

References 17 publications

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Metode Elemen Hingga dan Elemen Batas untuk Antena Celah pada Pemandu Gelombang

Accurate and Efficient Analysis of Large Antenna Arrays With Radome on a Large Aircraft

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