Bandwidth-Enhanced Circularly Polarized Spiral Antenna With Compact Size

被引：13
作者：
Chen, Ling-Lu [1 ]
Chang, Lei [1 ]
Chen, Zhuang-Zhi [1 ]
Qiu, Qiao-Na [1 ]
机构：
[1] CETC, Res Inst 36, Jiaxing 314033, Peoples R China
来源：
IEEE ACCESS | 2020年 / 8卷
关键词：
Spirals; Bandwidth; Helical antennas; Impedance; Impedance matching; Gain; Spiral antenna; absorbing material; ultrawideband; miniaturization; LOW-PROFILE; ARM;
D O I：
10.1109/ACCESS.2020.2976705
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A compact circularly polarized (CP) spiral antenna with enhanced impedance and 3-dB axial ratio (AR) bandwidths that is fed by a tapered coax balun is presented. The antenna is composed of a two-arm nonself-complementarity planar equiangular spiral, a z-directional helix, absorbing material with a stepped cylindrical honeycomb structure, and a ground plane. The z-directional helix is used to extend the current path and to improve the impedance matching and AR in the low-frequency band. The coupling between the nonself-complementarity planar spiral arms is increased, which improves the impedance matching in the low-frequency band and the AR at approximately 5.55 GHz. The stepped cylindrical absorbing material can reduce the reverse current and improve the AR in the high-frequency band. The measured results show that the impedance bandwidth and 3-dB AR bandwidths range from 0.5 to 6 GHz and from 0.5 to 5.8 GHz, respectively. The overall size of the proposed antenna is Sheight, where is the free-space wavelength at the starting frequency).
引用
收藏
页码：41246 / 41253
页数：8
相关论文
共 19 条
[1]   Stripline-Fed Archimedean Spiral Antenna [J].
Chen, Teng-Kai ;
Huff, Gregory H. .
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2011, 10 :346-349
[2]   A Planar Dual-Arm Equiangular Spiral Antenna [J].
Fu, W. ;
Lopez, E. R. ;
Rowe, W. S. T. ;
Ghorbani, K. .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2010, 58 (05) :1775-1779
[3]   Compact Coplanar Waveguide Spiral Antenna With Circular Polarization for Wideband Applications [J].
Ghassemi, Nasser ;
Wu, Ke ;
Claude, Stephane ;
Zhang, Xiupu ;
Bornemann, Jens .
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2011, 10 :666-669
[4]   Ultrawideband Circularly Polarized Spiral Antenna Using Integrated Balun With Application to Time-Domain Target Detection [J].
Mao, Shau-Gang ;
Yeh, Jen-Chun ;
Chen, Shiou-Li .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2009, 57 (07) :1914-1920
[5]   Performance of Archimedean spiral antenna backed by FSS reflector [J].
Mohamad, S. ;
Cahill, R. ;
Fusco, V. .
ELECTRONICS LETTERS, 2015, 51 (01) :14-U45
[6]   Selective High Impedance Surface Active Region Loading of Archimedean Spiral Antenna [J].
Mohamad, Sarah ;
Cahill, Robert ;
Fusco, Vincent .
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2014, 13 :810-813
[7]   Directly fed millimetre-wave two-arm spiral antenna [J].
Mruk, J. R. ;
Saito, Y. ;
Kim, K. ;
Radway, M. ;
Filipovic, D. S. .
ELECTRONICS LETTERS, 2010, 46 (24) :1585-1586
[8]   Equiangular spiral antenna backed by a shallow cavity with absorbing strips [J].
College of Engineering, Hosei University, Koganei, Tokyo 184-8584, Japan .
IEEE Trans Antennas Propag, 2008, 8 II (2742-2747) :2742-2747
[9]   Extremely Low-Profile, Single-Arm, Wideband Spiral Antenna Radiating a Circularly Polarized Wave [J].
Nakano, Hisamatsu ;
Satake, Ryohei ;
Yamauchi, Junji .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2010, 58 (05) :1511-1520
[10]   Low-Profile Equiangular Spiral Antenna Backed by an EBG Reflector [J].
Nakano, Hisamatsu ;
Kikkawa, Katsuki ;
Kondo, Norihiro ;
Iitsuka, Yasushi ;
Yamauchi, Junji .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2009, 57 (05) :1309-1318
12