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Low‐profile open‐slot antenna with three branch slots for triple‐wideband LTE operation in the metal‐framed smartphone
Author(s) -
Wong KinLu,
Li YaJyun
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29320
Subject(s) - wideband , antenna (radio) , slot antenna , electrical engineering , reconfigurable antenna , microstrip antenna , engineering , acoustics , electronic engineering , coaxial antenna , physics
A low‐profile open‐slot antenna capable of providing a triple‐wideband LTE operation for the metal‐framed smartphone is presented. The antenna has a low profile of 7 mm and can fit in a narrow region between the metal frame and the display panel of the metal‐framed smartphone. The antenna comprises three branch slots sharing a same opening disposed at the top or bottom edge of the casing of the smartphone. Two branch slots are excited using a U‐shape microstrip feedline with wideband matching circuits embedded therein while the third‐branch slot is excited parasitically. With the proposed feeding arrangement, the antenna provides the triple‐wideband LTE operation to cover the low band of 698–960 MHz, middle band of 1710–2690 MHz, and high band of 3400–3800 MHz. Details of the proposed open‐slot antenna are presented and discussed. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2231–2238, 2015
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