Dual-band Circularly Polarized Shared-aperture Antenna
- Resource Type
- Conference
- Authors
- Sun, Guilin; Zhang, Hongtao; Rao, Yuru; Meng, Ru
- Source
- 2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall) Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall), 2019. :1280-1282 Dec, 2019
- Subject
- Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Microstrip antenna arrays
Dipole antennas
Microstrip
Microstrip antennas
Magnetoelectric effects
Dual band
- Language
A novel dualband circularly polarized shared-aperture antenna is proposed in the paper. The antenna is designed to operate at two distinct frequency bands of P band and L/S band. The antenna is composed of a circularly polarized magneto-electric dipole antenna and 16 microstrip antenna arrays. The magneto-electric dipole imposes four same metallic radiators and two feeding probes. A microstrip antenna array consists of four square probe-fed microstrip antennas and ten parasitic square patches. The antenna operates over a frequency range of 223 MHz to 445 MHz and 1.97 GHz to 2.27 GHz for VSWR < 2, meanwhile, the axial ratio is less than 1.7 dB and 0.3 dB in Z direction covering the lower band and higher band, respectively.