An Independently Tunable Tri-Band Antenna Design for Concurrent Multiband Single Chain Radio Receivers
An Independently Tunable Tri-Band Antenna Design for Concurrent Multiband Single Chain Radio Receivers
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DOI：
10.1109/tap.2017.2748185
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发表时间：
2017-09
影响因子：
5.7
通讯作者：
Q. Bai;Ravinder Singh;K. L. Ford;Timothy O’Farrell;R. Langley
中科院分区：
文献类型：
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作者：
Q. Bai;Ravinder Singh;K. L. Ford;Timothy O’Farrell;R. Langley
在本文中，提出了一种用于并发、多频带和单链无线电接收器的新型可调谐三频天线。该天线采用 ${50}\times {100}$ mm FR4 印刷电路板制造，能够提供三个并发、独立可调的工作频段，频率范围为 600 MHz 至 2.7 GHz。首先使用变容二极管和第二个数字可调电容器 (DTC) 来调谐频率时，通过数值和实验方法研究了天线性能，结果表明使用 DTC 可以将天线增益提高高达 2.6 dBi。硬件在环测试台可对直接射频数字化、并发和三频无线电接收器中的拟议天线进行系统级评估。通过测量接收器的误差矢量幅度，我们展示了并发频段之间的充分隔离，实现了 30 MHz 的聚合带宽，以及对每个频段旁边的相邻阻塞的强大弹性。本文报告的数据可从 ORDA 数字存储库 (https://doi.org/10.15131/shef.data.5346295) 获取。
In this paper, a novel tunable tri-band antenna is presented for concurrent, multiband, and single chain radio receivers. The antenna is manufactured on a ${50}\times {100}$ mm FR4 printed circuit board, and is able to provide three concurrent, independently tunable operating bands covering a frequency range from 600 MHz to 2.7 GHz. The antenna performance is investigated for both numerical and experimental methods when using, first, varactor diodes and, second, digitally tunable capacitors (DTCs) to tune frequencies, which shows that the antenna gain can be improved by up to 2.6 dBi using DTCs. A hardware-in-the-loop test-bed provides a system level evaluation of the proposed antenna in a direct RF digitized, concurrent, and tri-band radio receiver. By measuring the receiver’s error vector magnitude, we demonstrate sufficient isolation between concurrent bands achieving 30 MHz of aggregated bandwidth as well as strong resilience to adjacent blockers next to each band. The data reported in this paper are available from the ORDA digital repository (https://doi.org/10.15131/shef.data.5346295).