A Simple Design of Multi Band Microstrip Patch Antennas Robust to Fabrication Tolerances for Gsm, Umts, Lte, and Bluetooth Applications by Using Genetic Algorithm Optimization

Jayasinghe, Jeevani; Anguera, Jaume; Uduwawala, Disala

doi:10.2528/pierm12102705

Cited by 56 publications

(28 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After that, topology optimization was implemented for antenna design problems [9]; it especially has gained much attention in the design of patch antennas [10][11][12][13][14][15][16][17][18][19][20][21][22] and monopole antennas [22][23][24][25][26][27][28]. However, only few studies have been done on other types of antennas such as chip antennas [29], planar-inverted-F antennas [30], handset antennas [31], and mobile antennas [32] using topology optimization. Furthermore, there has been far less research on the characterization of problem difficulty for topology optimization.…”

Section: Introductionmentioning

confidence: 99%

A Building-Block Favoring Method for the Topology Optimization of Internal Antenna Design

Chen

2015

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

This paper proposes a new design technique for internal antenna development. The proposed method is based on the framework of topology optimization incorporated with three effective mechanisms favoring the building blocks of associated optimization problems. Conventionally, the topology optimization of antenna structures discretizes a design space into uniform and rectangular pixels. However, the defining length of the resultant building blocks is so large that the problem difficulty arises; furthermore, the order of the building blocks becomes extremely high, so genetic algorithms (GAs) and binary particle swarm optimization (BPSO) are not more efficient than the random search algorithm. In order to form tight linkage groups of building blocks, this paper proposes a novel approach to handle the design details. In particular, a nonuniform discretization is adopted to discretize the design space, and the initialization of GAs is assigned as orthogonal arrays (OAs) instead of a randomized population; moreover, the control map of GAs is constructed by ensuring the schema growth based on the generalized schema theorem. By using the proposed method, two internal antennas are thus successfully developed. The simulated and measured results show that the proposed technique significantly outperforms the conventional topology optimization.

show abstract

Section: Introductionmentioning

confidence: 99%

A Building-Block Favoring Method for the Topology Optimization of Internal Antenna Design

Chen

2015

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…Shape synthesis of patch antennas based on GA was presented few years later in [16]. In particular, GA has been applied to design broadband patch antennas [17][18][19][20][21][22][23], multiband patch antennas [22][23][24][25][26][27][28][29], and miniature patch antennas [30,31]. However, no references have been found to optimize the shape of a single element to obtain a high-directivity broadside pattern.…”

Section: Introductionmentioning

confidence: 99%

A High-Directivity Microstrip Patch Antenna Design by Using Genetic Algorithm Optimization

Jayasinghe¹,

Anguera²,

Uduwawala³

2013

PIER C

Self Cite

View full text Add to dashboard Cite

Abstract-A high-directivity patch antenna with broadside directivity is attractive, since a narrow beam can be obtained without the need of using an array of antennas. Therefore, the solution becomes simpler as there is no need for a complicated feeding network. In this sense, this paper presents a novel patch antenna design with high directivity in the broadside direction by using genetic algorithms (GA). The proposed GA method divides the overall patch area into different cells taking into account that cells have a small overlap area between them. This avoids optimized geometries where cells have only an infinitesimal connection. Therefore, the proposed method is robust for manufacturing. The antenna operates in a higher-order mode at 4.12 GHz and the geometry fits inside a patch of 40 mm × 40 mm on a substrate with a relative permittivity of 3.38 and a thickness of 1.52 mm resulting in a directivity of 10.5 dBi. The specialty of this design is the use of GA to select the optimized shape and the feeding position instead of a known shape and a fixed feeding position. The antenna has been fabricated and the simulation results are in good agreement with the measurements. This results in a simpler design of a single high-directivity patch, which can substitute an array of two elements operating in the fundamental mode.

show abstract

“…Recently several techniques have been introduced for the design of multiband antennas. These include the use of multi-resonators [5], co-planar waveguides [6], defected microstrip structure [7], defected ground structure [8], coupling mechanism [9], reactive loads [10], fractalization [11], genetic optimization [12] and creation of slots [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Volkswagen Logo Uwb Antenna With Slotted Ground Structure and Metamaterial for Gps, Wimax and Wlan Applications

Ali¹,

Biradar²

2017

PIER C

View full text Add to dashboard Cite

Abstract-A novel concept of using slotted ground structure and a single circular split ring resonator (SRR) to achieve multiband operation from a miniaturized UWB antenna is presented in this paper. Initially, a miniaturized Volkswagen logo ultrawideband (UWB) antenna having −10 dB impedance bandwidth of about 124% (2.9-12.4 GHz) in simulation and 116.7% (3.1-11.8 GHz) under measurement is designed. This miniaturization leads to about 10% increment in −10 dB reflection coefficient bandwidth and about 66.71% reduction in the volume of the proposed UWB antenna as compared to the conventional circular antenna. In order to reconfigure the proposed UWB antenna to operate it at 1.5 (GPS), 3.5 (WiMAX), 5.2 and 5.8 GHz (WLAN) frequency bands, slotted ground structure with metamaterial is used. The proposed metamaterial is a circular SRR consisting of a single circular ring and is placed on the slotted ground structure of the proposed antenna to achieve 1.5 GHz band. The proposed configuration has a volume of 0.290λ 0 × 0.290λ 0 × 0.015λ 0 (30 × 30 × 1.6 mm 3 ) at a lower resonating band of 2.9 GHz and is fabricated on a widely available FR4 substrate with a loss tangent of 0.02 and dielectric constant of 4.4. Simulated and experimental results show that the proposed design yields S 11 < −10 dB at the targeted frequencies. Good impedance matching, stable radiation characteristics with cross-polarization level less than −15 dB (both in E and H planes), VSWR < 2, average gain of 3.09 dBi and radiation efficiency of more than 85% are observed at the designed band when the antenna is fabricated and tested.

show abstract

A Simple Design of Multi Band Microstrip Patch Antennas Robust to Fabrication Tolerances for Gsm, Umts, Lte, and Bluetooth Applications by Using Genetic Algorithm Optimization

Cited by 56 publications

References 28 publications

A Building-Block Favoring Method for the Topology Optimization of Internal Antenna Design

A Building-Block Favoring Method for the Topology Optimization of Internal Antenna Design

A High-Directivity Microstrip Patch Antenna Design by Using Genetic Algorithm Optimization

A Miniaturized Volkswagen Logo Uwb Antenna With Slotted Ground Structure and Metamaterial for Gps, Wimax and Wlan Applications

Contact Info

Product

Resources

About