Impedance Matching of a Switched Parasitic Planar Array Using Additional Parasitic Elements and the Method of Genetic Algorithms

Varlamos, Pantelis K.; Karageorgou, E. D.; Capsalis, Christos N.

doi:10.1163/156939303322519711

Cited by 5 publications

(16 citation statements)

References 6 publications

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“…Simulations at different frequencies prove that the array described in Tables 1 and 2 is a narrowband one and its bandwidth is 2.5% of the carrier frequency [26]. Figure 1 [26].…”

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 79%

“…In this paper, a previously designed [26] seven-element switched parasitic planar array is proposed, in order to mitigate interference effects. In the first simulations set, the antenna has been considered only at the base stations of a cellular system equipped with nineteen base stations.…”

Section: Discussionmentioning

confidence: 99%

“…For the design of the antenna used in this paper, roulette wheel selection, simple crossover with p crossover = 0.8 and binary mutation with p mutation = 0.04 were employed. The objective was to cover the entire azimuth plane with main beams every 60 • , having relative side lobe levels lower than −3 dB [26]. The design was made feasible by selecting the appropriate digital code words, among the 2 N − 1 available, which maximize the objective function containing the pattern requirements.…”

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 99%

“…Each digital codeword implies which of the antenna elements are fed with voltage (active) and which are short-circuited (parasitic). Tables 1 and 2 provide the directional and geometrical characteristics of the designed 7-dipole array, respectively [26].…”

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 99%

See 3 more Smart Citations

Uplink Carrier-to-Interference Improvement in a Cellular Telecommunication System When a Six-Beam Switched Parasitic Array Is Implemented

Sotiriou¹,

Trakadas²,

Capsalis³

2008

PIER B

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Abstract-Mobile broadband communication is experiencing rapid growth in the following sections: technology, range of services and marketing target groups. This growth has driven research and development activities towards advanced high-data-rate wireless systems, with improved network performance. A typical example of technology thrust in wireless communications is the use of adaptive antennas at the transceivers, in association with advanced array signal processing. Although the mass deployment of adaptive array systems has not achieved the desired levels yet, there are many examples of improved cell coverage, link quality and system capacity at several networks. The performance of a six-beam switched parasitic array, in terms of carrier-to-interference ratio (CIR) measurement at the uplink direction, is presented in this paper. The switched parasitic array is designed with the aid of the method of genetic algorithms and the simulation results are compared with respect to those obtained when an omni directional antenna is used instead. The calculated CIR improvement reveals the superiority of the adaptive system compared to the conventional one.

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“…Simulations at different frequencies prove that the array described in Tables 1 and 2 is a narrowband one and its bandwidth is 2.5% of the carrier frequency [26]. Figure 1 [26].…”

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 99%

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 99%

See 2 more Smart Citations

Uplink Carrier-to-Interference Improvement in a Cellular Telecommunication System When a Six-Beam Switched Parasitic Array Is Implemented

Sotiriou¹,

Trakadas²,

Capsalis³

2008

PIER B

View full text Add to dashboard Cite

show abstract

“…Digital beam forming may be also achieved with switched parasitic arrays where additionally to elements positions and voltage characteristics, active and parasitic Table 1. Directions of maximum gains, 3 dB beam widths, and relative side lobe levels for the 7-element array [7]. Table 2.…”

Section: Antenna Design With Genetic Algorithmmentioning

confidence: 99%

Performance of a Six-Beam Switched Parasitic Planar Array Under One Path Rayleigh Fading Environment

Sotiriou¹,

Varlamos²,

Trakadas³

et al. 2006

PIER

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Abstract-The technology of adaptive antennas is rapidly growing during the last years. It is true that switched beam antennas, the simplest type of smart antennas, may provide substantial benefits when implemented in a cellular mobile telephony system. The performance of a six-beam switched parasitic planar array, in terms of bit error rate (BER) measurement, is presented in this paper. The switched parasitic planar array is designed with the aid of genetic algorithms method. The antenna system is evaluated in a radio environment where interfering signals are present. The results obtained from the simulation are compared with respect to the ones when an omni directional antenna is used instead of the switched beam array, revealing that the performance of such a telecommunication system can be improved.

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Broadband Wireless Access Base Station Performance using Smart Antenna Cell

Sotiriou

Varlamos

Trakadas

et al. 2007

2007 International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications

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Benefits achieved by the deployment of a switched parasitic array (SPA) at a broadband wireless access (BWA) base station (BS) cell are presented. The antenna design methodology based on genetic algorithms and array designing rules are briefly analyzed. Antenna characteristics and geometry are also presented. Coverage simulation results, considering the proposed antenna system at a typical metropolitan environment, are reported INTRODUCTION

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Impedance Matching of a Switched Parasitic Planar Array Using Additional Parasitic Elements and the Method of Genetic Algorithms

Cited by 5 publications

References 6 publications

Uplink Carrier-to-Interference Improvement in a Cellular Telecommunication System When a Six-Beam Switched Parasitic Array Is Implemented

Uplink Carrier-to-Interference Improvement in a Cellular Telecommunication System When a Six-Beam Switched Parasitic Array Is Implemented

Performance of a Six-Beam Switched Parasitic Planar Array Under One Path Rayleigh Fading Environment

Broadband Wireless Access Base Station Performance using Smart Antenna Cell

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