宽带天线在阻抗带宽内具有稳定的全向辐射方向图,用于各种现代通信系统,例如无线电广播、无线局域网 (WLAN) 和车对车 (V2V) 通信。近年来广泛采用模式压缩方法,即通过负载结构将偶极子天线不同谐振模式的谐振频率调整为彼此接近,以扩大偶极子天线的阻抗带宽。
As shown below👇
宽带偶极子--模式压缩方法
偶极子Q的分析
其中R是结构的电阻,X是电抗。两式相比较,有
[1] Y. Wang et al., "Design of a Mode-Compressed Wideband Asymmetrical Dipole Antenna With Stable Omnidirectional Radiation Pattern," in IEEE Transactions on Antennas and Propagation, vol. 73, no. 3, pp. 1882-1887, March 2025, doi: 10.1109/TAP.2024.3524412.
[2] G. A. E. Vandenbosch, "Reactive Energies, Impedance, and Q Factor of Radiating Structures," in IEEE Transactions on Antennas and Propagation, vol. 58, no. 4, pp. 1112-1127, April 2010, doi: 10.1109/TAP.2010.2041166.