Broadband microstrip-CPW fed circularly polarised slot antenna with inverted configuration for L-band applications

被引：8
作者：
Liu, Hu [1 ]
Liu, Ying [1 ]
Gong, Shuxi [1 ]
机构：
[1] Xidian Univ, Natl Lab Sci & Technol Antennas & Microwaves, Xian 710071, Shaanxi, Peoples R China
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2017年 / 11卷 / 06期
基金：
中国国家自然科学基金;
关键词：
broadband antennas; microstrip antennas; coplanar waveguides; slot antennas; antenna feeds; impedance matching; reflector antennas; electromagnetic wave polarisation; impedance bandwidth; antenna gains; antenna structure; phase quadrature; CPW feed lines; phase difference comparator; Wilkinson PD; wideband feeding network power divider; rectangular slot antenna; microstrip-coplanar waveguide; L-band application; inverted configuration; broadband microstrip-CPW fed circularly polarised slot antenna; WIDE-BAND; STRIPS; DIPOLE;
D O I：
10.1049/iet-map.2016.0880
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A broadband circularly polarised antenna with a compact structure is proposed based on a microstrip-coplanar waveguide (CPW) fed rectangular slot antenna. The wideband feeding network power divider (PD) consists of a Wilkinson PD and a 90 degrees phase difference comparator. The even modes of four CPW feed lines are generated to provide equal amplitudes but in phase quadrature. Circular polarisations can be excited over a very broad frequency band. A reflector is added to the antenna structure to improve the antenna gains. The inverted configuration, which places the reflector in the slot side, is ultilised to enhance the impedance matching. The measured impedance bandwidth for |S-11|<-10dB is 74.4%. A broad 3-dB axial ratio bandwidth of 70.8% is also obtained. The measured 3-dB gain bandwidth is 53.65% with the peak gain of 7.4dBic.
引用
收藏
页码：880 / 885
页数：6
相关论文
共 23 条
  • [1] Broadband Circularly Polarized Crossed Dipole With Parasitic Loop Resonators and Its Arrays
    Baik, Jung-Woo
    Lee, Tae-Hak
    Pyo, Seongmin
    Han, Sang-Min
    Jeong, Jichai
    Kim, Young-Sik
    [J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2011, 59 (01) : 80 - 88
  • [2] Circularly Polarized Antenna Having Two Linked Slot-Rings
    Chang, The-Nan
    Lin, Jyun-Ming
    [J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2011, 59 (08) : 3057 - 3060
  • [3] Wideband Circularly Polarized Slotted-Patch Antenna With a Reflector
    Chen, Jhih-Ming
    Row, Jeen-Sheen
    [J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2015, 14 : 575 - 578
  • [4] Dual-Band Dual-Sense Circularly Polarized Slot Antenna With a C-Shaped Grounded Strip
    Chen, Yue-Ying
    Jiao, Yong-Chang
    Zhao, Gang
    Zhang, Fan
    Liao, Zhen-Lin
    Tian, Yu
    [J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2011, 10 : 915 - 918
  • [5] Multipath-rejecting GPS antennas
    Counselman, CC
    [J]. PROCEEDINGS OF THE IEEE, 1999, 87 (01) : 86 - 91
  • [6] Broadband CPW-Fed Circularly Polarized Square Slot Antenna With Three Inverted-L-Shape Grounded Strips
    Felegari, Nader
    Nourinia, J.
    Ghobadi, C.
    Pourahmadazar, Javad
    [J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2011, 10 : 274 - 277
  • [7] Dual-band circularly polarized microstrip antenna for satellite applications
    Ferrero, F
    Luxey, C
    Jacquemod, G
    Staraj, R
    [J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2005, 4 : 13 - 15
  • [8] Broadband Circularly Polarized Slot Antenna Array Fed by Asymmetric CPW for L-Band Applications
    Fu, Shiqiang
    Fang, Shaojun
    Wang, Zhongbao
    Li, Xiaoming
    [J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2009, 8 : 1014 - 1016
  • [9] A Wideband Circularly Polarized Cross-Dipole Antenna
    He, Yejun
    He, Wei
    Wong, Hang
    [J]. IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2014, 13 : 67 - 70
  • [10] Joseph R., 2011, PROG ELECTROMAGN R B, V59, P233
123