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
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| 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 6.5mm x 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 lambda and matching chip capacitor which generates a dual-resonance mode at 0.74 GHz and 0.9 GHz. In high band, the 1 lambda mode, the 1.5 lambda mode, and the 2 lambda mode of the entire loop are combined with the 0.5. 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. |
| DOI | 10.1155/2018/8426574 |
| 发表期刊 | INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION
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| ISSN | 1687-5869 |
| 页码 | 8 |
| WOS记录号 | WOS:000428415500001 |
| 语种 | 英语 |
