Novel Ultra-Wideband CB-CBW Butler matrix

Nedil, Mourad; Habib, A. M.; Denidni, Tayeb A.

doi:10.1109/aps.2008.4619181

Cited by 8 publications

(12 citation statements)

References 5 publications

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“…Los desarrollos tecnológicos recientes de este tipo de antenas están dirigidos hacia su aplicación en las bandas S, X, Ku y Ka, para la detección de señales de arribo interferentes y la capacidad de direccionamiento de haz (Ibrahim et al, 2007;Abdallah, 2009), y hacia la mejora de las características y medidas de desempeño de las antenas, como niveles de lóbulo lateral reducidos, anchos de banda más grandes, haces más directivos, reducción de tamaño, pesos y costos de fabricación para aplicaciones aeroespaciales (Hiranandani y Kishk, 2005;Nedil, Habib y Denidni, 2008). Estas antenas pueden tener su mayor aplicación en las comunicaciones móviles, debido a que sus características de selectividad espacial y angular mejoran la cobertura, la capacidad y la calidad de estos servicios (Kamarudin y Hall, 2009).…”

Section: Introductionunclassified

Antena de patrón conmutado para la banda ISM (2,45 GHz)

Botero¹,

Rueda²

2014

IyU

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Section: Introductionunclassified

Antena de patrón conmutado para la banda ISM (2,45 GHz)

Botero¹,

Rueda²

2014

IyU

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“…In literature, only a few articles treat about the transmission line crossovers for broadband and integrated microwave circuit applications [1][2][3][4][5][6][7][8]. In antenna applications [1,2], the crossovers are commonly realized as a tandem connection of 3 dB/90 couplers.…”

Section: Introductionmentioning

confidence: 99%

“…In antenna applications [1,2], the crossovers are commonly realized as a tandem connection of 3 dB/90 couplers. In this solution, the wide operation bandwidth can be obtained by the usage of multisection couplers.…”

Section: Introductionmentioning

confidence: 99%

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Design of a broadband microstrip crossover for ultra‐wideband applications

Kusiek

Marynowski

Mazur

2010

Micro & Optical Tech Letters

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resonant frequency and 0.4 dBi for the lower resonant frequency, respectively. Large cross-polarization is observed for both operating frequencies. It should be noted that this characteristic can be advantageous for the wireless communication application in rich multipath environment. CONCLUSIONA compact and wideband PIFA has been designed using folded patch and notched rectangle slot. In measurements, the antenna shows wideband characteristic covering DCS, UPCS, UMTS, and WLAN bands with return loss less than À10 dB. The proposed antenna can be one of the good candidates for hand-held device application.

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“…Many architectures of Butler matrix using wideband crossovers have been proposed [6][7][8]. Some other configurations have been investigated allowing to reduce dimensions without offering very wide bandwidth [9,10].…”

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confidence: 99%

Novel Wideband Multilayer Butler Matrix Using Cb-CPW Technology

Kilani¹,

Nedil²,

Kandil³

et al. 2012

PIER C

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Abstract-This paper presents a novel design of a 4 × 4 twolayer wideband Butler matrix using a CB-CPW wideband multilayer directional coupler as well as a novel CB-CPW wideband elliptic directional coupler. With this configuration, the proposed matrix was designed to avoid crossovers as in conventional Butler matrices, thus reducing its size, losses and the design complexity while leading to a broad bandwidth of 3 GHz. To evaluate the performance of the proposed matrix, experimental prototypes of the directional elliptic coupler, the CB-CPW multilayer directional coupler and Butler matrix were fabricated and measured. Furthermore, a 4-element antenna array was connected to the matrix to form a beamforming antenna system at 5.8 GHz. As a result, four orthogonal beams were realized in the band 4.5-7.5 GHz.

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Novel Ultra-Wideband CB-CBW Butler matrix

Cited by 8 publications

References 5 publications

Antena de patrón conmutado para la banda ISM (2,45 GHz)

Antena de patrón conmutado para la banda ISM (2,45 GHz)

Design of a broadband microstrip crossover for ultra‐wideband applications

Novel Wideband Multilayer Butler Matrix Using Cb-CPW Technology

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