Miniaturized broadband printed unidirectional antenna with parasitic slots for indoor wireless applications

Harmouch, Ali; Mourad, Rayane

doi:10.1109/icatt.2017.7972636

Cited by 1 publication

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another advantage is a potential for miniaturisation, typically achieved by suitable topological modifications. The most popular topologies include Yagi [5] and quasi-Yagi [6][7][8][9] structures, loop-dipoles [10], or loop antennas with metamaterial cells [1,3].…”

Section: Introductionmentioning

confidence: 99%

“…Improving performance of basic unidirectional antenna structures is realised by means of various topological modifications applied to the radiator, the feed, or the ground plane [1][2][3][4][5][6][7][8][9][10]. The goals of such changes include enhancing the impedance bandwidth, improving directivity, or reducing antenna footprint.…”

Section: Introductionmentioning

confidence: 99%

“…Yet, the tuning process is necessary and must be applied to all parameters simultaneously in order to obtain the best possible antenna performance. A quick look into recently proposed designs indicates that a typical number of adjustable parameters ranges from over a dozen to well over 20 [1][2][3][4][5][6][7][8][9][10]. Again, a supervised parameter sweeping is still the most commonly used approach to electromagnetic (EM)-simulation-driven design closure.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Constrained optimisation for generating gain‐bandwidth design trade‐offs of wideband unidirectional antennas

Kozieł

Bekasiewicz

2019

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

Broadband unidirectional antennas realised in microstrip technology find applications in many wireless communication systems. One of their design challenges is the necessity of handling multiple performance figures which is difficult when using traditional design methods, largely based on parameter sweeping. This work presents a simple optimisation‐based framework that permits generation of gain‐bandwidth trade‐off designs for this class of antenna structures. The proposed methodology exploits sequentially executed constrained optimisation runs which produce maximum‐gain designs across the range of prescribed target impedance bandwidths. To control the latter, design constraints are imposed on the reflection response but also on gain variability to ensure flat in‐band characteristics. For the sake of demonstration, an example compact wideband quasi‐Yagi antenna is considered for which a set of trade‐off designs is obtained with the impedance bandwidth varied from 9 to over 54%, and corresponding gain levels from 7.4 dB to around 5.5 dB, which determines the antenna capabilities in terms of these performance figures. The approach proposed in this work can be utilised as a design aid as well as a tool for quantitative performance comparison of different (alternative) antenna topologies.

show abstract