Planar triple-band antenna for LTE/GSM/UMTS and WLAN/WiMAX mobile device applications

ABSTRACT A planar triple‐band antenna with size 40 × 18 × 0.8 mm3 for LTE/GSM/UMTS and WLAN/WiMAX is developed in this article. The antenna is constructed in four steps. The first step is named Ant1. In one side of the substrate, a nonfolded strip is connected with a ground plane and a rectangle pat...

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Bibliographic Details
Published in:Microwave and optical technology letters 2015-10, Vol.57 (10), p.2277-2281
Main Authors: Huang, Hui-Fen, Zhao, Wei
Format: Article
Language:English
Subjects:
Antennas
Ground plane
Interoperability
LTE/GSM/UMTS
Mobile communication systems
mobile device application
Patch antennas
small-size
Strip
triple-band antenna
Universal Mobile Telecommunications System
Wireless communication
WLAN/WiMAX
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Summary:ABSTRACT A planar triple‐band antenna with size 40 × 18 × 0.8 mm3 for LTE/GSM/UMTS and WLAN/WiMAX is developed in this article. The antenna is constructed in four steps. The first step is named Ant1. In one side of the substrate, a nonfolded strip is connected with a ground plane and a rectangle patch at both end of the nonfolded strip, respectively. Ant1 is fed by a T‐strip, which is in the other side of the substrate. Ant1 generates two modes at 2.8 and 1.97 GHz and is responsible for the operation band 1.25–3.65 GHz. The second step is named Ant2. On the basis of Ant1, the nonfolded strip is changed into folded strip. Two new resonant modes at 680 MHz and 5.8 GHz are introduced. Ant2 is responsible for the operation band (660–1120 MH) and (1.71–3.85 GHz). The third step is named Ant3. On the basis of Ant2, two branches (Br‐1, Br‐2) are introduced. Br‐1 and Br‐2 are in the same side of Ant1 and connected with the ground plane. Then the operation band (5.15–6.17 GHz) is added on the basis of Ant3. The fourth step is named Ant4. A slot is etched from the rectangular patch, and the impedance is greatly improved in the three operation bands. As a result, a triple‐band antenna covering the LTE 700/2300/2500 (1710 −2690 MHz)/GSM 850/900/(690–960 MHz)/GSM 1800/1900/UMTS (1710–2170 MHz)/WiMAX 3.5 GHz (3400–3650 MHz)/5.4 GHz (5250–5850 MHz) is formed. The gain for the proposed antenna is 1.2–4.2 dBi, and the radiation efficiency is about 67–95%. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2277–2281, 2015
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.29315