Vertically Multilayer-Stacked Yagi Antenna With Single and Dual Polarizations

Kramer, O.; Djerafi, Tarek; Wu, Ke

doi:10.1109/tap.2010.2041155

Cited by 104 publications

(75 citation statements)

References 24 publications

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“…4, which is higher than the one reported in [7]. Furthermore, using a stack of five parasitic elements with overall dimensions of 33×36 mm 2 makes the proposed antenna significantly smaller than the structure described in [7][8][9].The periodicity of the unit-cell is essentially along the y-direction. Other examples where a single metamaterial unit-cell has been employed to modify the characteristics of the antenna are reported in [12][13].…”

Section: Prof Virdeementioning

confidence: 82%

“…11, shows the antenna provides a gain better than 10 dBi over 3.15-3.9 GHz, but the gain is significantly enhanced in the range of 3.6 to 3.9 GHz with a maximum gain of 12.65 dBi at 3.73 GHz. Table I shows the advantage of the proposed gain-enhancement technique compared to other conventional methods [5][6][7][8]. The Eand H-plane radiation pattern of the antenna for the 4×5 array of EECSR at 3.8 GHz is plotted in Fig.…”

Section: Antenna Gain Bandwidthmentioning

confidence: 99%

“…Conventional quasi-Yagi Bow-tie antennas using 5 director elements, which are spaced by 0.3 to 0.4 and arranged in the E-plane, provide gain improvement of 6 dBi; however, they are substantially larger 1.53λ o ×1.19λ o ×0.70λ o [7]. In this paper, we propose a Bow-tie antenna using artificial dielectric layers loaded with 4×5 array of EECSRs that provide a peak gain enhancement of 7.45 dBi and smaller dimensions (1.27λ o ×0.53λ o ×0.42λ o ) compared to the quasi-Yagi and patch antenna reported in [7][8][9].…”

mentioning

confidence: 99%

See 2 more Smart Citations

High‐gain end‐fire bow‐tie antenna using artificial dielectric layers

Dadgarpour

Zarghooni

Virdee

et al. 2015

IET Microwaves, Antennas & Propagation

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This paper presents a high-gain Bow-tie antenna for applications in next generation base-stations operating from (2.5-3.9 GHz). The proposed structure consists of three circular sector patches that are attached laterally to the microstrip feed-line, which is etched on both sides of the common dielectric substrate to create symmetrical Bow-tie antenna. By loading the antenna with a 2×5 array of enhanced end-coupled split-ring (EECSR) unit-cells results in significant enhancement in the antenna gain performance. This is because the EECSR unit-cells behave as parasitic radiators, which is analogous to Yagi-Uda antennas. The EECSR unit-cells provide a medium of high effective permittivity that effectively reduces the spacing between parasitic directors. As a consequence, a compact and miniature structure is achieved compared to conventional quasi Yagi-Uda planar designs. The dimension of EECSR unit-cell is 33 × 36 mm 2 with inter-element spacing of 0.075 at 3.5 GHz. A prototype of the antenna was fabricated and its performance measured to validate the simulation results. The measured peak gain of the antenna with 4×5 array of EECSR is 12.65 dBi at 3.73 GHz, constituting a peak gain enhancement of 7.45 dBi in the WiMAX band compared to an equivalent conventional Bow-tie antenna.

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Section: Prof Virdeementioning

confidence: 82%

Section: Antenna Gain Bandwidthmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

High‐gain end‐fire bow‐tie antenna using artificial dielectric layers

Dadgarpour

Zarghooni

Virdee

et al. 2015

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

show abstract

“…Many techniques have been developed to achieve compactness in the antenna design such as integrating shorting walls on the radiating element, using stacked structures and fractal geometries [1][2][3][4]. Recently, Composite Right/Left Handed (CRLH) Transmission Lines (TLs), composed of shunt inductors and series capacitors periodically loaded along the host TLs, have drawn increasing attention because of its many unusual properties [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Modified Bowtie Antenna for Zeroth Order Resonance

Roshna¹,

Deepak²,

Sajitha³

et al. 2014

PIER C

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Abstract-A novel extremely compact Zeroth Order Resonator (ZOR) antenna with a chip inductor, for Digital Video Broadcasting-Handheld (DVB-H) application, is presented. The proposed antenna has a bowtie structure with an overall dimension of 0.0186λ 0 × 0.020λ 0 × 0.003λ 0 mm 3 at 503 MHz. The zeroth resonance property makes the resonant frequency to be independent of the antenna dimension. The 3 : 1 VSWR bandwidth of the antenna is 39 MHz and offers an omnidirectional radiation pattern. A 99.1% reduction in the overall area of the structure is achieved compared to a conventional circular patch antenna operating at the same frequency.

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“…In [5], the effect of platform materials for high gain quasi-yagi planar antennas designed for mobile platform integration at 60 GHz is presented. High-gain compact stacked multilayered yagi antennas are proposed and demonstrated at 5.8 GHz for local positioning systems (LPS) applications [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of Wideband Planar Yagi- And Bi-Yagi Arrays With Photonic Band Gap

Abd-Elrazzak¹

2011

PIER C

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Abstract-In this work, the analysis and design of wideband microstrip yagi and bi-yagi antenna arrays with photonic band gap (PBG) is presented. By using the bi-yagi planar array, a high directive gain and a high front-to-back ratio are achieved in comparison with that of the single microstrip yagi structure. The current distribution, return loss, radiation pattern, and input impedance are calculated. For a single yagi, wide bandwidth up to 12.81% at 10.15 GHz is obtained. However, a high directive gain is achieved with the bi-yagi. The PBG structures force the antennas to have stop band at the higher end of the operating band. In addition, it increases the front-to back (F/B) ratio. The finite difference time domain (FDTD) with the perfect matched (PML) and a numerical package based on the method of moment (MOM) are used in the present analysis and design. A closed form based on an approximate equivalent circuit is used to get approximate dimensions of the PBG structures.

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Vertically Multilayer-Stacked Yagi Antenna With Single and Dual Polarizations

Cited by 104 publications

References 24 publications

High‐gain end‐fire bow‐tie antenna using artificial dielectric layers

High‐gain end‐fire bow‐tie antenna using artificial dielectric layers

Modified Bowtie Antenna for Zeroth Order Resonance

Analysis and Design of Wideband Planar Yagi- And Bi-Yagi Arrays With Photonic Band Gap

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