Two-arm Archimedean spiral antenna fed by broadband double sided parallel strip line

2016 ◽  
Vol 58 (8) ◽  
pp. 1879-1883 ◽  
Author(s):  
Seongwon Oh ◽  
Chihyung Ahn
Keyword(s):  
Strip Line ◽  
Spiral Antenna ◽  
Archimedean Spiral ◽  
Parallel Strip

scholarly journals Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Qingyuan Fang ◽  
Mengzhe Jin ◽  
Weidong Liu
Keyword(s):  
Circular Polarization ◽  
Surface Current ◽  
Axial Ratio ◽  
Impedance Bandwidth ◽  
Strip Line ◽  
Spiral Antenna ◽  
Archimedean Spiral ◽  
Low Frequencies ◽  
Current Path ◽  
Measurement Results

In this paper, a single-arm Archimedean spiral (SAAS) antenna with broadband circular polarization is investigated. Unlike traditional single-arm Archimedean spiral antenna, the antenna arm consists of a hybrid meandered strip line and a smooth arc strip line. Especially at low frequencies, the meandered strip line significantly improves the circular polarization performance by extending the antenna surface current path. The effects of the meandered strip line on the radiation pattern and axial ratio (AR) are studied in detail. To obtain unidirectional radiation, a metallic cavity is added below the SAAS antenna. The measurement results show that the voltage standing wave ratio (VSWR) is less than 2 from 0.88 GHz to 8.82 GHz, which indicates a wide impedance bandwidth of 1 : 10 is realized. A wide AR bandwidth of 1 : 5 is available, that the measured AR is less than 3 dB from 1.6 GHz to 8 GHz.

Spiral antenna with coplanar strip line feed

1992 ◽  
Vol 28 (23) ◽  
pp. 2130 ◽  
Author(s):  
H. Nakano ◽  
G. Hirokawa ◽  
J. Yamauchi ◽  
K. Hirose
Keyword(s):  
Strip Line ◽  
Spiral Antenna

Cavity-backed Archimedean spiral antenna with strip absorber

2008 ◽  
Vol 2 (7) ◽  
pp. 725-730 ◽  
Author(s):  
H. Nakano ◽  
H. Oyanagi ◽  
J. Yamauchi ◽  
S. Sasaki
Keyword(s):  
Spiral Antenna ◽  
Archimedean Spiral

Compact dual-mode dual-band balun filter using double-sided parallel-strip line

2012 ◽  
Vol 48 (21) ◽  
pp. 1351 ◽  
Author(s):  
W. Jiang ◽  
L. Zhou ◽  
A.M. Gao ◽  
W. Shen ◽  
W.Y. Yin ◽  
...  
Keyword(s):  
Dual Band ◽  
Strip Line ◽  
Dual Mode ◽  
Parallel Strip

scholarly journals A NOVEL COMPACT ARCHIMEDEAN SPIRAL ANTENNA WITH GAP-LOADING

2008 ◽  
Vol 3 ◽  
pp. 169-177 ◽  
Author(s):  
Qing Liu ◽  
Cheng-Li Ruan ◽  
Lin Peng ◽  
Wei-Xia Wu
Keyword(s):  
Spiral Antenna ◽  
Archimedean Spiral
Sign in / Sign up

Export Citation Format

Share Document