Bandwidth and gain enhancement of rectangular MSA by using parasitic patch and capacitive feeding technique for wideband application
Bandwidth and gain enhancement of rectangular MSA by using parasitic patch and capacitive feeding technique for wideband application
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DOI：
10.1109/icmoce.2015.7489775
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
Rupesh Raut;Kavita Talandage
中科院分区：
文献类型：
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作者：
Rupesh Raut;Kavita Talandage
提出了一种基于寄生贴片的新型宽带电容馈电微带天线。本工作的目标是设计一种覆盖无线移动应用的宽带矩形微带天线。为了提高阻抗带宽，提出了电容间隙耦合机制。提出的天线结构描述了一种共面电容馈电微带天线，该天线印刷在厚度为1.6 mm、气隙为9.0 mm、介电常数r=4.4的FR4衬底上。这里使用的电容馈电带基本上是由一条微带传输线组成的。该天线在1.49-2.45 GHz范围内具有较高的阻抗带宽，在回波损耗小于10dB时，阻抗带宽为60.75%。该天线的带宽为960 MHz，在GPS(1575 MHz)、PCS(1900 MHz)、移动(1800/1900 MHz)、UTMS(2100 MHz)和蓝牙(2400 MHz)工作时，总增益为5.3dB.利用HFSS高频仿真软件对该天线进行了仿真分析，给出了该天线在不同寄生结构下的回波损耗、驻波比、带宽和增益的仿真结果。
A new wideband capacitive fed microstrip antenna using parasitic patch for wideband applications is proposed. The objective of the work is to design a wideband rectangular microstrip antenna for covering wireless Mobile Applications. To enhance the impedance bandwidth, capacitive gap-coupled mechanism has been proposed. The proposed antenna geometry describes a coplanar capacitive fed microstrip antenna printed over a FR4 substrate of thickness 1.6mm, air gap 9.0mm and permittivity r = 4.4. The capacitive feed strip used here is basically formed from a microstrip transmission line. The proposed antenna exhibits a much higher impedance bandwidth in the range of 1.49-2.45GHz an impedance bandwidth of 60.75% for return loss of less than 10dB. The proposed antenna possesses the bandwidth 960MHz with a good gain of 5.3dB overall the GPS (1575MHz) PCS (1900MHz), mobile (1800/1900MHz), UTMS (2100MHz) and Bluetooth (2400MHz) operation. HFSS high frequency simulator is employed to analyze the proposed antenna and simulated results on the return loss, VSWR, bandwidth and Gain of the proposed antenna are presented at various parasitic structure.