Compact dual‐band antenna using inverted‐L loop and inner rectangular loop for WLAN applications | Zendy

Qu L. | Zendy; Zhang R. | Zendy; Kim H.H. | Zendy; Kim H. | Zendy

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Compact dual‐band antenna using inverted‐L loop and inner rectangular loop for WLAN applications

Author(s) -

Qu L.,

Zhang R.,

Kim H.H.,

Kim H.

Publication year - 2015

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2015.2075

Subject(s) - loop antenna , loop (graph theory) , multi band device , impedance matching , bandwidth (computing) , electrical impedance , dual loop , capacitor , physics , materials science , antenna (radio) , optics , optoelectronics , radiation pattern , electrical engineering , telecommunications , antenna factor , engineering , voltage , mathematics , combinatorics

A small loop antenna for WLAN applications is proposed, which is comprised of an inverted‐L loop and an inner rectangular loop achieving dual‐band resonances within a compact size of 4.5 mm × 6.5 mm. A series capacitor in the feeding loop is employed for impedance matching of both bands and a shunt capacitor for high band, respectively. The proposed compact antenna is able to achieve −10 dB impedance bandwidth of 120 and 1260 MHz and average radiation efficiency of 69 and 61% in the 2.4 GHz band and the 5 GHz band, respectively.

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