Silicon-etched re-configurable self-similar antenna with RF-MEMS switches

Anagnostou, Dimitris E.; Zheng, Guoxing; Feldner, L.M.; Chryssomallis, M.T.; Lyke, James; Papapolymerou, John; Christodoulou, C.G.

doi:10.1109/aps.2004.1330549

Cited by 21 publications

(8 citation statements)

References 6 publications

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“…The use of reconfigurability in coordination with a self-similar antenna leads to a considerable improvement in antenna performance. This is because not only a wider selection of frequencies is achieved, but also similar radiation properties for all designed frequency bands are obtained [4,15].…”

Section: Reconfigurabilitymentioning

confidence: 85%

A Reconfigurable U-Koch Microstrip Antenna for Wireless Applications

Ramadan¹,

Kabalan²,

El‐Hajj³

et al. 2009

PIER

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Abstract-In this paper, a low-cost multiband printed-circuit-board (PCB) antenna that employs Koch fractal geometry and tunability is demonstrated. The antenna is fabricated on a 1.6 mm-thick FR4-epoxy substrate with dimensions 4 cm × 4.5 cm, is microstrip-line fed and has a partial ground plane flushed with the feed line. The proposed antenna is simulated using the Finite-Element Method for three different switching cases and the return loss is measured for each case. It is shown that the antenna can cover the bands of several applications including 3G, WiFi, WiMAX as well as a portion of the UWB range. The radiation patterns are satisfactorily omnidirectional across the antenna's operation bands.

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Section: Reconfigurabilitymentioning

confidence: 85%

A Reconfigurable U-Koch Microstrip Antenna for Wireless Applications

Ramadan¹,

Kabalan²,

El‐Hajj³

et al. 2009

PIER

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“…Reconfigurable antenna design with RF MEMS switches has gain tremendous research interest [3][4][5][6][7][8][9][10][11][12]. A dual-band tunable rectangular slot antenna was presented in [3].…”

Section: Frequency Tuning With Mems Switchesmentioning

confidence: 99%

Recent Developments in Reconfigurable and Multiband Antenna Technology

Haider

Caratelli

Yarovoy

2013

International Journal of Antennas and Propagation

138

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A comparative analysis of various reconfigurable and multiband antenna concepts is presented. In order to satisfy the requirements for the advanced systems used in modern wireless and radar applications, different multiband and reconfigurable antennas have been proposed and investigated in the past years. In this paper, these design concepts have been classified into three basic approaches: tunable/switchable antenna integration with radio-frequency switching devices, wideband or multiband antenna integration with tunable filters, and array architectures with the same aperture utilized for different operational modes. Examples of each design approach are discussed along with their inherent benefits and challenges.

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“…During the last decade, several fractal antennas have been proposed by the researchers [18][19][20][21]; however, the most widely explored fractal antenna is the Sierpinski gasket fractal geometry-based multi-band antenna that is originally proposed by [22]. The Sierpinski gasket is a fractal geometry based on the base triangular shape as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Performance comparison of bio-inspired optimization algorithms for Sierpinski gasket fractal antenna design

Dhaliwal

Pattnaik

2015

Neural Comput & Applic

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The Sierpinski gasket fractal antenna is most popular structure in the domain of fractal antennas. This fractal antenna has multi-band performance, and hence, the design of this antenna for the desired frequencies is a challenging problem. The artificial intelligence tools like artificial neural networks, fuzzy logic systems, bio-inspired optimization techniques are appropriate to provide accurate design solution in such cases. In this paper, three most popular bio-inspired optimization algorithms: genetic algorithms, particle swarm optimization (PSO), and bacterial foraging optimization, have been proposed to solve the design issues of Sierpinski gasket pre-fractal antenna. Their performances are analyzed and are compared with the experimental results. A simplified expression for calculation of resonant frequency of Sierpinski gasket pre-fractal antenna is proposed and is used as the objective function. Finally, the effectiveness is compared on the basis of three different measures: mean absolute percentage error, the average time taken by the models to evaluate the results, and the coefficient of correlation. The results indicate that the PSO algorithm is most suitable for this type of antenna.

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Silicon-etched re-configurable self-similar antenna with RF-MEMS switches

Cited by 21 publications

References 6 publications

A Reconfigurable U-Koch Microstrip Antenna for Wireless Applications

A Reconfigurable U-Koch Microstrip Antenna for Wireless Applications

Recent Developments in Reconfigurable and Multiband Antenna Technology

Performance comparison of bio-inspired optimization algorithms for Sierpinski gasket fractal antenna design

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