Modified Two-Element Yagi-Uda Antenna With Tunable Beams

Sun, Baohua; Zhou, Song; Wei, Yunfei; Qi-zhong, Liu

doi:10.2528/pier09111501

Cited by 31 publications

(25 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the use of Genetic Algorithms for the optimization of arrays of Yagi-Uda antennas is presented in [13,14]. Modified Yagi-Uda antennas have been proposed in [15][16][17]. In [18], the design of a source that uses a Fabry-Perot resonance with a cavity made of a ground plane is presented.…”

Section: Introductionmentioning

confidence: 99%

Pencil Beam Patterns Obtained by Planar Arrays of Parasitic Dipoles Fed by Only One Active Element

Folgueiras

González

Ares‐Pena

2010

PIER

View full text Add to dashboard Cite

Abstract-In this paper, an innovative method for obtaining a pencil beam pattern is presented. Planar arrays of parasitic dipoles are used to modify the pattern of an active dipole above a ground plane, in order to obtain a pencil beam of moderate gain and bandwidth. Only one feed point and one active element provide a very simple feeding network that reduces the complexity of the antenna. The correct configuration of the elements of the parasitic arrays allows to obtain the desired pencil beam pattern. Three designs that use parasitic arrays fed by a λ/2-dipole and synthesize pencil beam patterns are shown: 1) an antenna designed at 1.645 GHz and composed by one layer of 49 parasitic elements; 2) an antenna designed at the same frequency but composed by two layers of 49 parasitic elements; 3) an antenna designed at 5 GHz, composed by one layer of 49 parasitic elements, and taking into account the dielectric substrate and teflon screws.

show abstract

Section: Introductionmentioning

confidence: 99%

Pencil Beam Patterns Obtained by Planar Arrays of Parasitic Dipoles Fed by Only One Active Element

Folgueiras

González

Ares‐Pena

2010

PIER

View full text Add to dashboard Cite

show abstract

“…It is precisely an original idea for the antenna operating in multi-beams or beam-scanning, although many investigators [14][15][16][17][18][19][20][21][22][23][24][25] have been working on the techniques for several years. The plasma antenna of beam-forming examined in this paper is composed of plasma elements as reflector (or scatterer to be more accurate) and additional omnidirectional radiation source.…”

Section: Introductionmentioning

confidence: 99%

A New Plasma Antenna of Beam-Forming

Wu¹,

Shi²,

Chen³

et al. 2012

PIER

View full text Add to dashboard Cite

Abstract-In this paper, a new plasma antenna of beam-forming is investigated based upon the interaction of plasma elements due to the incident electromagnetic wave. It presents a study of the multiple scattering from argon plasma cylinders rigorously applying boundary value method, grounded on the properties of electromagnetic wave transmitted in the argon plasma. Approximate expressions for the total radiation of plasma antenna in the far field are derived briefly. Such a novel plasma antenna of beam-forming, according to the research, exhibits interesting performance in terms of radiation efficiency, beam-forming and beam-scanning. Valid results are brought forth to demonstrate the capabilities of such antenna of two scales. Comparisons are given in detail as well.

show abstract

“…A genetic algorithm is used in [2] for an optimum design of an asymmetric V-dipole antenna, and it is a three-element Yagi-Uda array. In addition, in [3] a modified two-element Yagi-Uda antenna with tunable beams in the H-plane (including four significant beams: forward backward, omni-directional, and bi-directional beams) is presented.…”

Section: Introductionmentioning

confidence: 99%

“…During the last two decades, many literatures have been published for the design and optimization of planar microstrip antenna arrays [1][2][3]. In [1], multi-objective evolutionary algorithms (MOEAs) are used to optimize the yagi-antenna parameters to get specific antenna characteristics.…”

Section: Introductionmentioning

confidence: 99%

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

Abd-Elrazzak¹

2011

PIER C

View full text Add to dashboard Cite

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.

show abstract

Modified Two-Element Yagi-Uda Antenna With Tunable Beams

Cited by 31 publications

References 17 publications

Pencil Beam Patterns Obtained by Planar Arrays of Parasitic Dipoles Fed by Only One Active Element

Pencil Beam Patterns Obtained by Planar Arrays of Parasitic Dipoles Fed by Only One Active Element

A New Plasma Antenna of Beam-Forming

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

Contact Info

Product

Resources

About