KMS Chongqing Institute of Green and Intelligent Technology, CAS
| A compact coupled-fed loop antenna for mobile LTE smartphones | |
| Wang, Ping1; Shao, Yu1; Huang, Dong2; Basit, Muhammad Abdul3 | |
| 2018 | |
| 摘要 | A coupled-fed loop antenna with Octa-bands operation for long-term evolution (LTE) smartphones is proposed in this paper. The antenna occupies a nonground space of only 6.5 mm × 72 mm, and two wide-band operations can be achieved by exploiting the multimode characteristics of loop antenna and using high-pass matching circuits. In low band, the LTE700/GSM850/900 operation is achieved by the loop mode of 0.5 λ and matching chip capacitor which generates a dual-resonance mode at 0.74 GHz and 0.9 GHz. In high band, the 1 λ mode, the 1.5 λ mode, and the 2 λ mode of the entire loop are combined with the 0.5 λ mode of the left-side coupling loop to cover the DCS1800/PCS1900/UMTS 2100/LTE 2300/2500 operation bands. The measured average realized gains and efficiencies are approximately 1.56 dBi/2.38 dBi and 55.3%/63.6% in the two bands, and a good radiation pattern is achieved as well. Copyright © 2018 Ping Wang et al. |
| DOI | 10.1155/2018/8426574 |
| 发表期刊 | International Journal of Antennas and Propagation
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| ISSN | 16875869 |
| 卷号 | 2018 |
| 收录类别 | EI |
| 语种 | 英语 |
| EISSN | 16875877 |
