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- W4309777704 abstract "<h2>Abstract</h2> A pattern-reconfigurable circularly polarized antenna for 2.45 GHz industrial, scientific, and medical (ISM) band applications is designed in this work. The proposed antenna consists of a slotted-stepped monopole connected to a rectangular ground plane via a shorting side-stub. This converts the omnidirectional radiation pattern of the antenna into stable unidirectional radiation. To dynamically steer the realized pattern, two switchable RF PIN diodes are jointly incorporated into the side-stubs to achieve symmetrical radiations in specific operating modes. In this way, the radiation patterns can be simultaneously tuned in the <mml:math><mml:mrow><mml:mo>±</mml:mo><mml:mi>y</mml:mi></mml:mrow></mml:math> directions by the simple switching of the PIN diodes ON and OFF. The fabricated prototype achieves an <mml:math><mml:mrow><mml:mi>S</mml:mi><mml:mn>11</mml:mn></mml:mrow></mml:math> smaller than -10dB within the 3dB axial ratio (AR) bandwidth with stable far-field patterns. The antenna maintains a low-profile and compact size of <mml:math><mml:mrow><mml:mrow><mml:mn>0.055</mml:mn><mml:mi>λ</mml:mi></mml:mrow><mml:mn>0</mml:mn><mml:mn>2</mml:mn></mml:mrow></mml:math> which makes it suitable for body-centric wireless communication (BWC) and personal wireless area networks." @default.
- W4309777704 created "2022-11-29" @default.
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- W4309777704 date "2022-11-01" @default.
- W4309777704 modified "2023-10-18" @default.
- W4309777704 title "Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications" @default.
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- W4309777704 doi "https://doi.org/10.1016/j.heliyon.2022.e11721" @default.
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