Composite right/left-handed transmission-line based wideband antenna for WLAN, WiMAX and WiFi applications

Alibakhshikenari, Mohammad; Naser‐Moghadasi, Mohammad; Sadeghzadeh, R. A.; Virdee, Bal S.; Limiti, Ernesto

doi:10.1109/istel.2016.7881853

Cited by 1 publication

(1 citation statement)

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“…The specifications of the proposed antennas make them potential candidates for integration into wireless communication systems and portable microwave devices such as transceivers. In [43], MTM CRLH-TLs are adopted for the implementation of a new miniaturized broadband antenna. The antenna is tuned for improved frequency bandwidth, efficiency and radiation pattern and it offers an enhanced gain performance.…”

Section: Slotted Antennamentioning

confidence: 99%

A Comprehensive Survey of “Metamaterial Transmission-Line Based Antennas: Design, Challenges, and Applications”

et al. 2020

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In this review paper, a comprehensive study on the concept, theory, and applications of composite right/left-handed transmission lines (CRLH-TLs) by considering their use in antenna system designs have been provided. It is shown that CRLH-TLs with negative permittivity and negative permeability have unique properties that do not occur naturally. Therefore, they are referred to as artificial structures called "metamaterials". These artificial structures include series left-handed (LH) capacitances , shunt LH inductances , series right-handed (RH) inductances , and shunt RH capacitances that are realized by slots or interdigital capacitors, stubs or via-holes, unwanted current flowing on the surface, and gap distance between the surface and ground-plane, respectively. In the most cases, it is also shown that structures based on CRLH metamaterial-TLs are superior than their conventional alternatives, since they have smaller dimensions, lower-profile, wider bandwidth, better radiation patterns, higher gain and efficiency, which make them easier and more cost-effective to manufacture and mass produce. Hence, a broad range of metamaterial-based design possibilities are introduced to highlight the improvement of the performance parameters that are rare and not often discussed in available literature. Therefore, this survey provides a wide overview of key early-stage concepts of metematerial-based designs as a thorough reference for specialist antennas and microwave circuits designers. To analyze the critical features of metamaterial theory and concept, several examples are used. Comparisons on the basis of physical size, bandwidth, materials, gain, efficiency, and radiation patterns are made for all the examples that are based on CRLH metamaterial-TLs. As revealed in all the metematerial design examples, footprint area decrement is an important issue of study that have a strong impact for the enlargement of the next generation wireless communication systems.

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Section: Slotted Antennamentioning

confidence: 99%