Analysis of mutual coupling effect in adaptive array antennas

Ali, M.A.; Wahid, Parveen

doi:10.1109/aps.2002.1016260

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Penurunan kualitas parameter dikarenakan adanya interferensi elektromagnetik dari dua antena atau lebih yang jaraknya berdekatan. Efek mutual coupling dapat menyebabkan perubahan parameter antena baik gain, return loss, dan pola radiasi yang diinginkan [3].…”

Section: Pendahuluanunclassified

Pengaruh Mutual Coupling Pada Beamforming Antena Array

2020

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In the antenna array there is a mutual coupling effect. Mutual coupling causes a decrease in the characteristics of the antenna parameters. In this study, an analysis of the effect of mutual coupling on beamforming results was carried out. In this study, it was concluded that the effect of mutual coupling depends on the distance between the antenna elements. In the simulation for the beam pointing to 60 degrees, at a distance of lambda the resulting beam is shifted by 70%. Distance of 12 lambda, beam shifted 25% to 45 degrees. At 3 4 lambda distance, the beam is close to the desired result direction, 64 degrees to be precise, at the lambda distance there is a grating lobe effect. In the end, it was found that mutual coupling affects the beam direction which causes the antenna radiation pattern to change.

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Section: Pendahuluanunclassified

Pengaruh Mutual Coupling Pada Beamforming Antena Array

2020

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“…It consists of a driven element and a number of parasitic radiators, in which currents are induced by mutual coupling. Some applications consider the mutual coupling effect undesirable because it degrades the performance [5][6][7]. However, in the parasitic array it is central to the operation.…”

Section: Introductionmentioning

confidence: 99%

Switched Beam Antenna Array With Parasitic Elements

Kamarudin¹,

Hall²

2009

PIER B

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Abstract-This paper describes the design of the disk-loaded monopole with a parasitic array for beam switching. Usually the radiation pattern of a single element such as a λ/4 monopole and the disk-loaded monopole provide low values of gain. The beamwidth is normally large and the coverage is wide. This may be appropriate in an on-body channel where the antenna orientation may not be easily controlled, such as when the users put the terminal in their pocket. In some non-body applications such as WLAN, it is necessary to design antennas with high gain to meet other demands such as high capacity or long range. Also, in the on-body environment it is essential to have such gain in order to minimize the path loss between the antennas, and hence increase the battery life. The antenna was excited using coaxial cable produced more gain and pattern compared to the single element top disk-loaded antenna. The reduced-size antenna namely a sector antenna array also has been discussed in detail in this paper. Such design has allowed at least 50% of the size reduction. The simulation results have shown very good agreement with the measurement for both antennas.Corresponding author: M. R. Kamarudin (ramlee@fke.utm.my). 188Kamarudin and Hall

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