SMALL-SIZE FOLDED MONOPOLE ANTENNA WITH SWITCHABLE MATCHING CIRCUIT FOR ULTRA-THIN MOBILE APPLICATIONS | Zendy

Hao Wang | Zendy; Zheqiang Wu | Zendy; Yibo Wang | Zendy; ChowYenDesmond Sim | Zendy; Guangli Yang | Zendy

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SMALL-SIZE FOLDED MONOPOLE ANTENNA WITH SWITCHABLE MATCHING CIRCUIT FOR ULTRA-THIN MOBILE APPLICATIONS

Author(s) -

Hao Wang,

Zheqiang Wu,

Yibo Wang,

ChowYenDesmond Sim,

Guangli Yang

Publication year - 2016

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc16040802

Subject(s) - monopole antenna , antenna (radio) , materials science , matching (statistics) , magnetic monopole , optoelectronics , electronic engineering , electrical engineering , physics , engineering , mathematics , statistics , quantum mechanics

A small-size ultra-thin and narrow frame antenna with a switchable matching network to achieve LTE dual-wide band operation in the 700–980 and 1710–2500 MHz bands is presented for mobile phone applications. The highlight of the antenna is that it has a low profile of only 2 mm and occupies a small ground clearance of 45 × 4.5 mm2, which are very attractive for ultra-thin mobile antenna applications. A folded monopole is used as a radiator fed via a switchable two-state matching circuit controlled by a PIN diode. The PIN type switchable matching network is mainly designed to tune the low band (700–980 MHz). By combining the two working states of the PIN diode, the proposed antenna can cover GSM850/GSM900/DCS1800/PCS1900/UMTS2100 and two LTE bands, LTE700/LTE2300. Details of the antenna are described in this study.

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