Control Radiation Pattern for Half Width Microstrip Leaky Wave Antenna by Using PIN Diodes

Mohsen, Mowafak K.; Isa, Mohd Sa'ari Mohamad; Zakaria, Zahriladha; Isa, Azmi Awang Md; Abdulhameed, M. K.; Attiah, Mothana L.

doi:10.11591/ijece.v8i5.pp2959-2966

Cited by 13 publications

(13 citation statements)

References 23 publications

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“…Due to the DGS the performance parameters of the antennas like return loss, gain VSWR, and bandwidth is improved [15]. With the advent of technological encroachments, a variety of design techniques for controlling electronically radiation pattern and enhancement of radiation in boresight for different frequency bands were developed in antennas [16][17][18][19]. FR4 based polygonal patch antenna and a CPW feed antenna are desined to resonate at UWB [20,21].…”

Section: Introductionmentioning

confidence: 99%

Design of wide band slotted microstrip patch antenna with defective ground structure for ku band

Davuluri

Siddaiah

2021

IJECE

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This paper proposes a microstrip patch antenna (MSPA) in the Ku band for satellite applications. The antenna is small in size with dimensions of about 40 mm×48 mm×1.59 mm and is fed with a coaxial cable of 50 Ω impedance. The proposed antenna has a wide bandwidth of 3.03 GHz ranging from 12.8 GHz to 15.8 GHz. To realize the characteristics of wideband the techniques of defective ground structure (DGS) and etching slots on the radiating element are adopted. The antenna is modeled on the FR4 substrate. A basic circular patch is selected for the design of a dual-frequency operation and in the next step DGS is introduced into the basic antenna and enhanced bandwidth is achieved at both the frequencies. To attain wider bandwidth two slots are etched on the radiating element of which one is a square ring slot and the second one is a circular ring slot. The novelty of the proposed antenna is a miniaturized design and unique response within the Ku band region which is applicable for wireless UWB applications with VSWR <2 and an average gain of 3.6 dB.

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Section: Introductionmentioning

confidence: 99%

Design of wide band slotted microstrip patch antenna with defective ground structure for ku band

Davuluri

Siddaiah

2021

IJECE

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“…Leaky wave antenna (LWA) is a promising candidate for these developing applications because of its advantages, such as wide bandwidth, low profile, easy fabrication, capability of beam scanning, and narrow beamwidth. LWAs are preferable for use in satellite communication, multipoint communication, and automotive radars [3][4][5][6][7]. In a radar system, most of the applications require a wide bandwidth to reach a continuous wide beam scanning.…”

Section: Introductionmentioning

confidence: 99%

Enhancement Bandwidth of Half Width-Microstrip Leaky Wave Antenna Using Circular Slots

Mohsen¹,

Isa²,

Isa³

et al. 2019

PIER C

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This paper presents a new technique to enhance impedance bandwidth of single layer half width microstrip leaky wave antenna (HW-MLWA) with continuous main beam scanning. The enhancement is realized by etching four circular slots on the radiation element. Two of the circular slots are placed close to the feed port, and the others are close to the matching load. The wide main beam scanning is between +12 • and +70 • when operation frequency sweeps between 4.3 GHz and 6.5 GHz. A comparison between the Uniform HW-MLWA (reference) and the proposed HW-MLWA with circular slots is provided to study the effectiveness of the added circular slots. The proposed HW-MLWA is fabricated and tested. The measured impedance bandwidth is 49.9% (4.28 GHz to 7.13 GHz) with peak gain 10.31 dBi at 5 GHz, hence the proposed antenna can be considered as a suitable candidate for C-band applications.

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“…Therefore, the not-deformed state can be calculated not only for the image of the fingerprint, but also for the fingerprint template. Thus, the synthesis of the "not-deformed" state can be introduced into functioning automatic dactyloscopic verification and identification systems [30,31].…”

Section: Resultsmentioning

confidence: 99%

Development modeling methods of analysis and synthesis of fingerprint deformations images

AlKaraawi

Dhahir

Alameri³

et al. 2020

IJECE

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The current study is to develop modeling methods, Analysis and synthesis of fingerprints deformations images and their application in problems of automatic fingerprint identification. In the introduction justified urgency of the problem, is given a brief description of thematic publications. In this study will review of modern technologies of biometric technologies and methods of biometric identification, the review of fingerprint identification systems, investigate for distorting factors. The influence of deformations is singled out, the causes of deformation of fingerprints are analyzed. The review of modern ways of the account and modeling of deformations in problems of automatic fingerprint identification is given. The scientific novelty of the work is the development of information technologies for the analysis and synthesis of deformations of fingerprint images. The practical value of the work in the application of the developed methods, algorithms and information technologies in fingerprints identification systems. In addition, it has been found that our paper "devoted to research methods and synthesis of the fingerprint deformations" is a more appropriate choice than other papers.

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Control Radiation Pattern for Half Width Microstrip Leaky Wave Antenna by Using PIN Diodes

Cited by 13 publications

References 23 publications

Design of wide band slotted microstrip patch antenna with defective ground structure for ku band

Design of wide band slotted microstrip patch antenna with defective ground structure for ku band

Enhancement Bandwidth of Half Width-Microstrip Leaky Wave Antenna Using Circular Slots

Development modeling methods of analysis and synthesis of fingerprint deformations images

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