Wideband Circularly Polarized SIW Antenna Array That Uses Sequential Rotation Feeding
- Resource Type
- article
- Authors
- Fang-Fang Fan; Ze-Hong Yan; Wei Wang
- Source
- International Journal of Antennas and Propagation, Vol 2014 (2014)
- Subject
- Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Cellular telephone services industry. Wireless telephone industry
HE9713-9715
- Language
- English
- ISSN
- 1687-5869
1687-5877
A wideband right-handed circularly polarized (CP) substrate integrated waveguide- (SIW-) based diamond ring-slot antenna array at the X-band is presented in this study. The array consists of four elements that exhibit wideband impedance matching characteristics and good radiation performance. The array also employs a sequential rotation feeding method to achieve the wideband axial ratio (AR) bandwidth. The feeding network is based on the SIW power divider with a delay line related to sequential rotation feeding. To validate our design, an antenna array is fabricated and measured. The measured impedance and AR bandwidths are 19.2% (VSWR