2020-05-04
1. Planar antenna loaded ceramic
The dielectric coefficient of ceramic is high and the loss is small, which can bring gain compared with air medium
Therefore, microwave ceramics with high dielectric and low loss are used to make antennas.
2. The gain keeping of four arm helical configuration when space position changes
No matter how it is placed, the gain drop is small. Its development also evolved from air medium to ceramic medium
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