一种液态金属锥形螺旋天线的仿真研究

系统仿真学报 ›› 2016, Vol. 28 ›› Issue (2): 343-347.

一种液态金属锥形螺旋天线的仿真研究

周芸^1,2, 房少军¹, 傅世强¹, 王钟葆¹

1.大连海事大学信息科学技术学院,大连 116026;
2.辽宁师范大学物理与电子技术学院,大连 116021

收稿日期:2014-09-02 修回日期:2015-01-05 出版日期:2016-02-08 发布日期:2020-08-17
作者简介:周芸(1981-), 女, 辽宁海城, 博士, 讲师,研究方向为卫星通信移动终端天线; 房少军(1957-), 男, 山东, 博士, 教授, 研究方向为微波天线理论与技术。
基金资助:
国家自然科学基金(61401056); 辽宁省教育厅一般项目(L2012171)

Simulation & Analysis of Liquid Metal Conical Helical Antenna

Zhou Yun^1,2, Fang Shaojun¹, Fu Shiqiang¹, Wang Zhongbao¹

1. School of Information Science and Technology, Dalian Maritime University, Dalian 116026, China;
2. School of Physics and Electronic Technology, Liaoning Normal University, Dalian 116021, China

Received:2014-09-02 Revised:2015-01-05 Online:2016-02-08 Published:2020-08-17

摘要/Abstract

摘要： 为设计可替代固体金属天线且具有小体积、高增益、宽带宽、易重构等特点的圆极化天线,提出一种易于调节形状的液态金属锥形螺旋天线。以应用于海事卫星通信为例,采用HFSS软件对天线进行设计与仿真,利用仿真软件的优化功能对天线进行了阻抗匹配,得到良好的圆极化辐射和阻抗特性。仿真结果表明：天线在整个海事卫星通信工作频带(1 525~1 660.5 MHz)范围内,增益达到8.5 dB;轴比<3 dB带宽达到了520 MHz。对比同尺寸同结构的固体金属(铜)天线,轴比带宽超出约30 MHz。因此所提出的液态金属锥形螺旋天线在易于可重构前提下,达到了固体金属天线技术要求。

关键词: 液态金属, 螺旋天线, 带宽, 截断结构

Abstract: In order to replace the solid metal antenna, a novel liquid metal conical helical antenna was presented. The antenna is easy to adjust its shape. The circularly polarized antenna has the characteristics of small size, high gain, wide bandwidth, and it is easy to reconstruct. Taking maritime satellite communications as an example, the proposed antenna was designed, simulated and optimized for antenna impedance matching with HFSS software, and a good circularly polarized radiation and impedance characteristics for the antenna were obtained. The simulated results show that: in the entire maritime satellite communication work band (1 525-1 660.5 MHz), the gain of the antenna achieves 8.5 dB; the 3 dB axial ratio (AR) bandwidth is 520 MHz. Comparing with the same size solid metal structure (copper), the novel antenna exceeds approximately 30 MHz. Therefore, under the premise of easy reconfiguration, the proposed liquid metal conical helical antenna achieves the performance of the solid metal antennas.

Key words: liquid metal, helical antenna, bandwidth, truncated structure

中图分类号:

TN82

周芸, 房少军, 傅世强, 王钟葆. 一种液态金属锥形螺旋天线的仿真研究[J]. 系统仿真学报, 2016, 28(2): 343-347.

Zhou Yun, Fang Shaojun, Fu Shiqiang, Wang Zhongbao. Simulation & Analysis of Liquid Metal Conical Helical Antenna[J]. Journal of System Simulation, 2016, 28(2): 343-347.

参考文献 17

[1]	魏文博. 可重构天线研究 [D]. 西安: 西安电子科技大学, 2008.
[2]	DH Schaubert,FG Farrar,ST Hayes, et al.Frequency-agile, Polarization Diverse Microstrip Antennas and Frequency Scanned Arrays [P]. US: US Patent 4367474, Jan. 4, 1983.
[3]	Kelley M, Koo C, Mcquilken H, et al.Frequency Reconfigurable Patch Antenna Using Liquid Metal as Switching Mechanism[J]. Electronics Letters (S0013-5194), 2013, 49(22): 1370-1371.
[4]	H Liu, S Gao T Loh. Compact MIMO Antenna with Frequency Reconfigurability and Adaptive Radiation Patterns[J]. IEEE Antennas and Wireless Propagation Letters (S1536-1225), 2013, 12(3): 269-272.
[5]	Michael D D, SO J H.Reversibly Deformable and Mechanically Tunable Fluidic Antennas[J]. Advanced Function Materials (S1616-301X), 2009, 19(22): 3632-3637.
[6]	T Liu, P Sen, C J Kim.Characterization of Liquid-Metal Galinstan for Droplet Applications[C]// Hong Kong, China. USA: IEEE, 2010: 560-563.
[7]	S Cheng, A Rydberg, K Hjort, et al. Liquid Metal Stretchable Unbalanced Loop Antenna [J]. Applied Physics Letters (S0003-6951), 2009, 94(14): 144103-144103-3.
[8]	Jalali Mazlouman S, Xing Jie Jiang, Mahanfar A, et al.A Reconfigurable Patch Antenna Using Liquid Metal Embedded in a Silicone Substrate[J]. IEEE Transactions on Antenna and Propagation (S0018-926X), 2011, 59(12): 4406-4412.
[9]	Rashed Khan Mohammad, Hayes G J, Ju-Hee So, et al. A Frequency Shifting Liquid Metal Antenna with Pressure Responsiveness [J]. Applied Physics Letters (S0003-6951), 2011, 99(1): 013501 - 013501-3.
[10]	Gerard J Hayes, Ju-Hee So, Amit Qusba, et al.Flexible Liquid Metal Alloy (EGaIn) Microstrip Patch Antenna[J]. IEEE Transactions on Antenna and Propagation (S0018-926X), 2012, 60(5): 2151-2156.
[11]	Abhishek Dey, R Guldiken, G Mumcu. Wideband Frequency Tunable Liquid Metal Monopole Antenna [Z]. Orlando, Florida, USA: IEEE, 2013: 392-393.
[12]	A M Morishita, C K Y Kitamura, A T Ohta, et al. Two-Octave Tunable Liquid-Metal Monopole Antenna[J]. Electronics Letters (S0013-5194), 2014, 50(1): 19-20.
[13]	Andy M Morishita, Carolynn K Y Kitamura, Aaron T Ohta, et al. A Liquid-metal Monopole Array with Tunable Frequency, Gain, and Beam Steering[J]. IEEE Antennas and Wireless Propagation Letters (S1536-1225), 2013, 12(3): 1388-1391.
[14]	Daniel Rodrigo, Lluís Jofre, Bedri A Cetiner.Circular Beam-Steering Reconfigurable Antenna with Liquid Metal Parasitics[J]. IEEE Transactions on Antenna and Propagation (S0018-926X), 2012, 60(4): 1796-1802.
[15]	夏林艳, 李校林, 田海燕. 基于液态金属的频率可重构天线新设计[J]. 电子元件与材料, 2013, 32(4): 36-39.
[16]	傅世强, 周月, 房少军, 等. 应用于海事卫星通信的低剖面变升角螺旋天线设计[J]. 电波科学学报, 2013, 28(1): 63-67.
[17]	Nakano H, Takeda H, Honma T, et al.Extremely Low-Profile Helix Radiating a Circularly Polarized Wave[J]. IEEE Transactions on Antennas and Propagation (S0018-926X), 1991, 39(6): 754-757.