Mutual coupling reduction between microstrip patch antennas

Hajilou, Y.; Hassani, Hamid Reza; Rahmati, B.

doi:10.1109/eucap.2012.6205886

Cited by 27 publications

(21 citation statements)

References 14 publications

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“…FR-4 is the dielectric substrate, used in manufacturing of proposed microstrip patch design structure. The negative value of return loss shows clearly that this antenna does not have great losses, during transmission of signals through antenna array system [2,4,5,12].…”

Section: Gupta L; Dwivedi a D D Suppression Of Mutual Coupling mentioning

confidence: 99%

“…The DGS & normal patch antenna array design is simulated using CST (Computer Simulation Technology) antenna simulator software & tested in the lab using Vectornetwork-analyzer. Once an antenna design is finalized, the operational characteristics of the antenna design system remains unchanged, during its use [5].…”

Section: Introductionmentioning

confidence: 99%

“…In prior works, the H-shaped, Ushaped and other cross-sectional structures were used for mutual coupling reduction [2,9]. At microwave frequency, microstrip is often used as transmission line because of its great performance in transfer of microwave signals [1,2,5].…”

Section: Introductionmentioning

confidence: 99%

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Suppression of Mutual Coupling Between Two Microstrip Patch Antennas using a Sophisticated Non-Linear DGS Structure for High Frequency Wave Applications

Gupta

Dwivedi

2018

Rev. Dir. Est. e Telecomunicacoes

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Purpose – If the two or more than two antennas are present in the antenna array, the mutual coupling between them becomes a critical issue to deal with. At microwave frequency, microstrip design is often used as a transmission line because of its good performance in transferring the energy and microwave signals. Most commonly used microstrip antenna has similar structure as that of the microstrip line. On one side of dielectric substrate layer, is an extremely thin layer of conductor that forms the radiating elements and on bottom side is the ground plane made up of metallic material. Our main motive is to maintain mutual coupling suppressing structure to its simplest form. Methodology/approach/design – We therefore use a Defected Ground Structure (DGS), which greatly decreases the mutual coupling between the two antennas, thus enhancing the performance of the antenna array. Findings – The introduction of the DGS does not affect the characteristics of antenna array system. The Simulation is done using CST (Computer Simulation Technology) software and the results are tested using Vector Network Analyzer. Both the simulated and measured results are in good agreement. The coupling has been reduced from -22 to -37 dB. The recent boom in wireless industry has led to the demand for the multiband antennas.

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Section: Gupta L; Dwivedi a D D Suppression Of Mutual Coupling mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Suppression of Mutual Coupling Between Two Microstrip Patch Antennas using a Sophisticated Non-Linear DGS Structure for High Frequency Wave Applications

Gupta

Dwivedi

2018

Rev. Dir. Est. e Telecomunicacoes

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“…To increase the capacitance effect of the equivalent LC circuit and to improve the compactness in EBG structures, different shapes with significant gaps are investigated [6]. The practical applications of EBG structures have difficulties in accommodating their physical sizes [7,8]. Another major drawback of patch antennas array is narrow bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Novel Wearable Eagle Shape Microstrip Antenna Array With Mutual Coupling Reduction

Ahmed¹,

Abdallah²,

El‐Hennawy³

2015

PIER B

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Novel eagle shape microstrip wearable antennas (element and array) are presented. The single-and two-element antenna arrays are designed and fabricated on a Roger RT/Duroid 5880 substrate with dielectric constant of 2.2, thickness of 1.5748 mm, and tan δ = 0.001. The measured results show that a reduction in mutual coupling of 36 dB is achieved at the first band (1.68-2.65) GHz and 22.1 dB over the second band (6.5-8.86) GHz due to introducing electromagnetic bandgap (EBG) structures. EBG structure has an eagle-like shape with more gaps. By increasing the number of EBG cells and varying the gap distance between cells to certain limit, the mutual coupling reduction is improved. Also, a size reduction of 80% is achieved. The microstrip array was simulated by CST simulator version 2014 and fabricated by proto laser machine with precision 25 µm. The specific absorption rate (SAR) investigation is carried out on CST2014 Simulator. Maximum SAR value is 1.953 W/kg which indicates that the eagle-shaped microstrip wearable antennas are safe for human. The antennas can be used in the official or RFID applications.

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“…In the case where the antennas operate simultaneously and have the same resonant frequency, it is of utmost importance to investigate the coupling between them and to ensure that it is as low as possible in order to prevent degradation of the emitted radiation. Many studies have been published regarding methods for coupling reduction [7]. Defected Ground Structures (DGS) have been reported in literature and widely used for suppressing surface waves and cross polarization levels, reducing the interaction between radiation elements [8].…”

Section: Introductionmentioning

confidence: 99%

Coupling Measurements of an Antenna System Suitable for Relay-Aided Wimax Network

Petropoulos¹,

Voudouris²,

Abd‐Alhameed³

et al. 2014

PIER C

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Abstract-In this paper two novel antennas, suitable for access and backhaul links, are designed, fabricated and tested for a Relay Station in a WiMAX wireless network. A single modified E-shaped patch antenna is described, presenting 10 dB gain over 12.4% bandwidth. This antenna element is used for the design of a 4 × 4 planar array which provides experimental gain of 21.2 dB. The antenna system on the Relay Station operates at 3.4 GHz and includes one single antenna element for access link realization and an antenna array for the backhaul link realization. These antennas are installed in two configuration arrangements and tested in terms of their radiation performances and coupling effects. The simulated and measured results are quite satisfactory and in good agreement at which the maximum coupling between the access and backhaul antennas is found below −25 dB for all tested cases.

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Mutual coupling reduction between microstrip patch antennas

Cited by 27 publications

References 14 publications

Suppression of Mutual Coupling Between Two Microstrip Patch Antennas using a Sophisticated Non-Linear DGS Structure for High Frequency Wave Applications

Suppression of Mutual Coupling Between Two Microstrip Patch Antennas using a Sophisticated Non-Linear DGS Structure for High Frequency Wave Applications

Novel Wearable Eagle Shape Microstrip Antenna Array With Mutual Coupling Reduction

Coupling Measurements of an Antenna System Suitable for Relay-Aided Wimax Network

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