Printed Yagi-Uda array for MIMO systems

Khaleel, Haider R.; Al‐Rizzo, Hussain M.; Abbosh, Ayman; Abushamleh, Said

doi:10.1109/aps.2013.6711560

Cited by 18 publications

(11 citation statements)

References 4 publications

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“…Geometry and dimensions of the proposed Yagi‐Uda printed antenna array: A, the front array layout (left), Back layout (right); B, geometry and dimensions of the single array element, front view (left), Back view (right) . Note that the gray colored area represents the metallization of ground planes, feeding structures, and the radiating elements [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Antenna Design and Configurationmentioning

confidence: 99%

“…Polyimide Kapton was selected as the substrate for the proposed antenna array due to its mechanical robustness and balanced electrical properties. 13 It should be noted that the structures shown on the front side of the array are printed on a single Kapton layer with a thickness of 50.8 μm, a dielectric constant of 3.4, and 12 Note that the gray colored area represents the metallization of ground planes, feeding structures, and the radiating elements [Colour figure can be viewed at wileyonlinelibrary.com] a loss tangent of 0.002 (Figure 1). A piece of clear flexible vinyl with a dielectric constant of 4 and a thickness of 0.45 mm is firmly adhered underneath the L-shaped driven element of the front side to provide capacitance between the front half of the driven element and the back half and partial ground plane structures shown in the left of Figure 2A.…”

Section: Antenna Design and Configurationmentioning

confidence: 99%

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A Yagi‐Uda antenna array for conformal IoT and wireless charging applications

Raad

2018

Micro & Optical Tech Letters

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In this article, a flexible Yagi‐Uda antenna array is presented. The array comprises 4 radiating elements and operates at 5 GHz. The design is aimed at integration within Multiple Input Multiple Output (MIMO)‐based Internet of Things (IoT) and wireless charging platforms that require mechanical flexibility. The array elements are positioned back to back in a cross fashion to achieve a pattern diversity utilizing the end‐fire radiation characteristics of such high gain antennas. This technique in turn reduces the mutual coupling between the array elements which is crucial to the performance of MIMO systems. Each single element is printed on a 50.8 μm Kapton Polyimide substrate and consists of a driven (fed) element and three parasitic directors. The simulated and measured scattering parameters show that the proposed array achieves a reasonable impedance bandwidth and isolation performance (S12 < −31 dB) at resonance.

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Section: Antenna Design and Configurationmentioning

confidence: 99%

Section: Antenna Design and Configurationmentioning

confidence: 99%

A Yagi‐Uda antenna array for conformal IoT and wireless charging applications

Raad

2018

Micro & Optical Tech Letters

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“…Few MIMO works based on Yagi configuration are reported so far in literature. Among them, the designs presented in used dipole excitation and targeted the 5.2 GHz, while the designs used loop excitation and targeted the 2, 3.6, and 5.8 GHz bands, respectively. The MIMO antenna system in had a size of 55× 48 mm 2 , gain of 6 dBi, FBR of 12 dB, and bandwidth of 200 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…The MIMO antenna system in had a size of 55× 48 mm 2 , gain of 6 dBi, FBR of 12 dB, and bandwidth of 200 MHz. The design of had a size of 154 × 154 mm 2 , FBR of 13.5 dB, gain of 5 dBi, and bandwidth of 320 MHz. The first loop based MIMO antenna system had a size of 263 × 263 mm 2 with a single element size of 78 × 117.8 mm 2 .…”

Section: Introductionmentioning

confidence: 99%

A miniaturized multi-wideband Quasi-Yagi MIMO antenna system

Jehangir

Sharawi

2018

Int J RF Microw Comput Aided Eng

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A multi‐band directional multiple‐input–multiple‐output (MIMO) antenna system is presented based on a rectangular loop excited Quasi‐Yagi configuration. A 64% reduction in size is obtained using a rectangular meandered element as well as a small ground plane. The proposed two‐element MIMO antenna system covers the Telemetry L‐band and several LTE/WLAN bands. It has a wide measured bandwidth of 689 MHz (1.897–2.586 GHz) in the desired band centered at 2 GHz, and a measured bandwidth of more than 168 MHz across rest of the bands. The MIMO antenna system has a total size of 45 × 120 × 0.76 mm3, with a single element size of 55 × 60 × 0.76 mm3. The non‐desired back‐lobe radiation which is obtained using a small ground plane, is significantly reduced by using a novel defected ground structure (DGS) as compared with the complex techniques present in literature. The proposed DGS provides a high measured front‐to‐back ratio of 14 dB at 2 GHz and 11 dB in other bands. A maximum measured realized gain of 5.8 dBi is obtained in the desired band using a single parasitic director element. The proposed MIMO antenna system has a minimum measured radiation efficiency of 70%, isolation of 12 dB, and envelope correlation coefficient of 0.098 within all bands which ensures very good MIMO performance.

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“…The other design presented in Ref. consisted of 4‐elements with an overall size of 154 × 154 mm 2 and gain of 9.5 dBi using three director elements.…”

Section: Introductionmentioning

confidence: 99%

A novel dual wideband circular quasi‐yagi MIMO antenna system with loop excitation

Jehangir

Sharawi

2016

Micro & Optical Tech Letters

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A 4‐element circular quasi‐Yagi based multiple‐input‐multiple‐output (MIMO) antenna system with loop excitation is presented. This wide dual‐band antenna system covers 1.45–2.55 GHz and 3.707− 4.71 GHz bands covering GPS, GSM/EDGE, UMTS/HSDPA, Bluetooth, Wi‐Fi and WiMAX bands. This antenna has an end‐fire directional radiation pattern with front‐to‐back ratio (FBR) of 13.8 dB, minimum measured gain of 5.8 dBi and directivity of 7 dB at 2 GHz using one director element. The minimum measured efficiency across the two bands was 65%. The proposed antenna ensured good MIMO performance in terms of isolation and correlation. It has a minimum measured isolation of 18 dB across both bands. Due to its geometry configuration, pattern orthogonality is obtained which gives very low envelope correlation coefficient values not exceeding 0.1589 in both bands. The size of the MIMO antenna system is 263 × 263 mm2 thus making it suitable for wireless access points and on vehicle applications.© 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2769–2774, 2016

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Printed Yagi-Uda array for MIMO systems

Cited by 18 publications

References 4 publications

A Yagi‐Uda antenna array for conformal IoT and wireless charging applications

A Yagi‐Uda antenna array for conformal IoT and wireless charging applications

A miniaturized multi-wideband Quasi-Yagi MIMO antenna system

A novel dual wideband circular quasi‐yagi MIMO antenna system with loop excitation

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