Extremely Low-Profile Dual-Band Antenna Based on Single-Layer Square Microstrip Patch for 5G Mobile Application

This letter presents an extremely low-profile dual-band antenna based on a single-layer square microstrip patch for 5G mobile application. The antenna has a height of only 0.8 mm (about 0.009λ L at 3.45 GHz) and a footprint of 30×30 mm 2 (0.345×0.345λ L 2 ). The TM 10 mode at around 3.56 GHz and the...

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Veröffentlicht in:	IEEE antennas and wireless propagation letters 2023-07, Vol.22 (7), p.1-5
Hauptverfasser:	Gao, Yuehui, Wang, Junlin, Wang, Xin, Sun, Zhanshuo
Format:	Artikel
Sprache:	eng
Schlagworte:	0 and TM<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">1/2 1 modes 2-order matrix-style shorting pin 5G mobile communication Antennas Applications programs Bandwidth dual-band antennas Electric fields low profile magnetic coupling effect Microstrip patch antennas Mobile computing Notches Pins Reflection coefficient Resonant frequency TM<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">1/2 TM<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">10 and TM<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">11 modes
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Zusammenfassung:	This letter presents an extremely low-profile dual-band antenna based on a single-layer square microstrip patch for 5G mobile application. The antenna has a height of only 0.8 mm (about 0.009λ L at 3.45 GHz) and a footprint of 30×30 mm 2 (0.345×0.345λ L 2 ). The TM 10 mode at around 3.56 GHz and the TM 11 mode at around 4.91 GHz for the antenna are obtained by etching a pair of symmetrical circular notches and a narrow rectangular slot on the square patch. The TM 1/2,0 mode at around 3.45 GHz and the TM 1/2,1 mode at around 4.83 GHz of the antenna are generated by further placing two 2-order matrix-style shorting pins. The combination of the four modes can overcome the effect of insufficient bandwidth due to the very low profile, resulting in 3.4-3.6 GHz (partial 5G N78 band) and 4.79-4.94 GHz (partial 5G N79 band) dual-band operation. The measured results are also presented.
ISSN:	1536-1225 1548-5757
DOI:	10.1109/LAWP.2023.3262927