Printed multiband antenna for mobile and wireless communications
Printed multiband antenna for mobile and wireless communications
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DOI：
10.1109/tssa.2011.6095442
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发表时间：
2011-12
期刊：
影响因子：
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通讯作者：
C. Permana;A. Munir
中科院分区：
文献类型：
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作者：
C. Permana;A. Munir
本文对一种低剖面印刷多频带天线进行了数值研究和实验测量。该天线被提议用于GSM-850、GSM-900、UMTS-2100、WiMAX-2.3和WiMAX-3.3。它是在现有的工作频率为2GHz、3.5GHz和5.5GHz的三频微带天线的基础上发展起来的。为了提高频带覆盖率，使用介电常数为4.3，厚度为0.8mm的FR-4环氧树脂基板对现有天线结构进行了完全重新设计，以产生工作在所需频带的新天线配置。为了使所提出的天线尽可能紧凑，应用曲折条技术来最小化天线尺寸。因此，为了能够在平面中馈电，微带线技术被用于馈电天线。在此之前的制造，建议的天线的数值设计，其中一些参数的天线，包括回波损耗，驻波比，带宽，增益，和辐射方向图作为设计指标。根据设计结果，实现了总尺寸为32 mm × 32 mm的天线，并对其进行了实验表征。测试结果表明，该天线在800- 920 MHz、1900- 2400 MHz和3300- 3420 MHz的频段内工作带宽（VSWR<2），分别对应GSM-850、GSM-900、UMTS-2100、WiMAX-2.3和WiMAX-3.3频段。此外，天线参数的测量结果与数值计算结果吻合较好。
In this paper, a low profile printed multiband antenna is numerically investigated and experimentally measured. The antenna is proposed to be used for GSM-850, GSM-900, UMTS-2100, WiMAX-2.3 and WiMAX-3.3. It is developed from the existing tripleband microstrip antenna that works on frequency of 2GHz, 3.5GHz and 5.5GHz. To improve the coverage of frequency bands, the existing antenna structure is totally redesigned using FR-4 Epoxy substrate with permittivity of 4.3 and thickness of 0.8mm to produce a new antenna configuration that works at desired frequency bands. To have the proposed antenna to be as compact as possible, the meandering strip technique is applied to minimize the antenna dimension. Hence, to be possible being fed in planar, the microstrip line technique is used to feed the antenna. Prior to the fabrication, the proposed antenna is numerically designed in which some parameters of antenna including return loss, VSWR, bandwidth, gain, and radiation pattern are used as design indicators. Based on the design result, the antenna with total dimension of 32mm × 32mm is then realized to be experimentally characterized. From the measured result, it is shown that the proposed antenna has working bandwidths (VSWR<2) for frequency ranges of 800–920MHz, 1900–2400MHz and 3300–3420MHz that corresponds to frequency ranges of GSM-850, GSM-900, UMTS-2100, WiMAX-2.3 and WiMAX-3.3, respectively. In addition, the measurement results of antenna parameters show good agreements with the numerical results.