A waveguide transverse slot for array applications

Josefsson, L.

doi:10.1109/8.237613

Cited by 53 publications

(36 citation statements)

References 11 publications

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“…Compared with the electrically small antennas shown in [19]- [24], the proposed antennas are relatively simple and low-cost. They are operated on the negative order resonance, which distinguishes them from conventional waveguide transverse slot antennas [33], [34]. These proposed antennas can be classified into two categories: the open-ended type and the short-ended type.…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Substrate Integrated Waveguide Slot Antennas Based on Negative Order Resonance

Dong

Itoh

2010

IEEE Trans. Antennas Propagat.

153

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Miniaturized waveguide slot antennas using negative order resonance are proposed and developed in this paper. The design of these novel resonant-type antennas is based on the study of a composite right/left-handed (CRLH) substrate integrated waveguide (SIW) starting from the dispersion diagram and the equivalent circuit. These proposed CRLH resonators are realized by etching the interdigital slot on the surface of the SIW. The slot acts as a series capacitor as well as a radiator leading to a CRLH antenna application. Two types of slot antennas, which are openended and short-ended, respectively, are proposed and discussed. The short-ended antenna, which represents a quasi-quarter-wavelength resonator, is characterized by a cavity-backed slot antenna thus providing a high gain. On the other hand, the open-ended antenna exhibits a small size owing to a quasi-half-wavelength operation in the left-handed (LH) region. Four antennas with one or two unit cells are fabricated and measured. Compared with the existing CRLH patch antennas and waveguide slot antennas, our antennas show advantages in terms of simplicity, low-profile, high efficiency, easy fabrication and integration with other circuits.Index Terms-Antenna miniaturization, composite right/lefthanded (CRLH), negative order resonance, slot antennas, substrate integrated waveguide (SIW).

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Section: Introductionmentioning

confidence: 99%

Miniaturized Substrate Integrated Waveguide Slot Antennas Based on Negative Order Resonance

Dong

Itoh

2010

IEEE Trans. Antennas Propagat.

153

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“…In Figure 2(a), the orientation of the slot can be in arbitrary direction. Assuming that the width of the slot is much smaller than its length, the electric field over the aperture of the waveguide will be dominated by the component in the direction parallel to the shorter edges of the slot [20][21][22][23][24]. Three different slot orientations, including the transverse, longitudinal, and 45 • -directed (with respect to the longitudinal direction) slots, are illustrated in Figure 5.…”

Section: The Proposed Antenna Unit Cell Based On the Fsiwmentioning

confidence: 99%

Novel Composite Right/Left-Handed Leaky-Wave Antennas Based on the Folded Substrate-Integrated-Waveguide Structures

Yang¹,

Chi²,

Xu³

2012

PIER C

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Abstract-In this paper, novel composite right/left-handed (CRLH) leaky-wave antennas based on folded substrate-integrated-waveguide (FSIW) structures are proposed. The proposed leaky-wave antennas were realized by periodically loading the radiating slots on the top metallization of the FSIW-based CRLH transmission lines. The structural advantages of the FSIW combined with the unique dispersion characteristics of the CRLH transmission line enable the proposed leaky-wave antennas to present continuous beam-scanning capability from backfire to endfire directions, occupy smaller footprint size, and provide more design flexibility than the conventional CRLH leaky-wave antennas. Two of such CRLH leaky-wave antennas were developed. In addition to the continuous beam scanning, it is found that the radiation efficiency and polarization of the FSIW-based leakywave antennas can be easily tuned by means of the slot size and slot orientation, respectively, indicating their potential for versatile applications. Calculated and experimental results are presented and compared. A good agreement is obtained. To the best of our knowledge, it is the first time that the leaky-wave antenna exploits both of the dispersion behavior of the CRLH transmission lines and the structural benefits of the FSIW configuration.

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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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“…Среди них наиболее используемыми являются: MoM применительно к интегральному уравнению для магнитного поля (MFIE), включая асимптотическую часть полученного решения [11,22]; MoM для интегрального уравнения электрическо-го поля (EFIE) относительно металлической по-верхности волновода [12]; метод конечных эле-ментов и FDTD-метод [15]; гибридный метод, объединяющий метод граничных элементов структуры, функцию Грина и MoM [16,21]; метод эквивалентных схем в комбинации с вариацион-ным методом [13,14,[17][18][19][20]23]. Каждый из этих методов имеет свои преимущества и дает хоро-шие результаты для определенных типов ВЩА.…”

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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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A waveguide transverse slot for array applications

Cited by 53 publications

References 11 publications

Miniaturized Substrate Integrated Waveguide Slot Antennas Based on Negative Order Resonance

Miniaturized Substrate Integrated Waveguide Slot Antennas Based on Negative Order Resonance

Novel Composite Right/Left-Handed Leaky-Wave Antennas Based on the Folded Substrate-Integrated-Waveguide Structures

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