Abstract
A circular polarization array antenna at W band is designed by analyzing and comparing different feeding forms, using constant amplitude and in-phase feeding and waveguide-microstrip transition. According to the theoretical analysis and simulation results, the loss of W band antenna can be reduced, good axial ratio and suitable arrangement of feeding network can be realized by choosing proper dielectric, using waveguide-microstrip transition and constant amplitude and in-phase feeding of each unit radiation patch, which is ideal for the realization of circular polarization array antenna at W band. The bandwidth of the 8×8 array antenna are 4.3% when S(1, 1)<-15 dB. The beamwidth of the antenna is 11° when axial ratio is below 3 dB. And the maximum achievable gain of this antenna is 20.6 dB. Test and simulation results are in good agreement.
| Original language | English |
|---|---|
| Pages (from-to) | 479-484 |
| Number of pages | 6 |
| Journal | Dianbo Kexue Xuebao/Chinese Journal of Radio Science |
| Volume | 28 |
| Issue number | 3 |
| Publication status | Published - Jun 2013 |
Keywords
- Circular polarization
- Microstrip antenna
- W band