L/S Multiband Frequency-Reconfigurable Antenna for Satellite Applications
| Autor: | Aixin Chen, Zhe Zhang, Mingyu Sun, Zhang Fan |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Reconfigurable antenna business.industry Antenna aperture Impedance matching 020206 networking & telecommunications 02 engineering and technology Sawtooth wave law.invention Optics law 0202 electrical engineering electronic engineering information engineering Standing wave ratio Electrical and Electronic Engineering Antenna (radio) business Circular polarization Ground plane |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 18:2617-2621 |
| ISSN: | 1548-5757 1536-1225 |
| Popis: | A novel multiband frequency-reconfigurable antenna is presented. The designed antenna can realize L-band single-frequency operation and S-band dual-frequency operation through electronic tuning. Annular ring and sawtooth patches are used as radiators for L/S-band operation and are excited by a broadband reconfigurable orthogonal network through the coupling of a T-shaped slot and a ring slot in the ground plane, respectively. By changing the bias of the p-i-n diodes loaded on the feed network, the operating frequency can be switched between the navigation state and the satellite link receiving state. A high tuning frequency ratio (1.64:1) is obtained. The simulated and measured results show good agreement. Good impedance matching (VSWR $ 1.3) and circular polarization characteristics (AR $ 3) are obtained in all three operating bands. Achievement of a highly reconfigurable frequency ratio of a circularly polarized antenna provides solutions for multifunction CP antenna aperture sharing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|