X波段高功率高效率延时组件设计

Design of an X-band High Power and High Efficiency Time Delay Module

为了实现相控阵雷达的宽带宽角扫描,用延时器处理取代常规相控阵雷达中的移相器是一种有效的技术措施。文中研制了一种X波段高功率高效率延时组件,利用幅度/相位自补偿电路改善寄生调幅和寄生调相,通过增益链路分配和C类线性功放模式,实现了组件高效率和高增益,同时利用电磁仿真与热传输路径分析验证了可靠性,对相控阵雷达收发组件的设计和制造具有参考价值。根据实测结果,所有组件发射输出功率高于5 W,效率高于46.3%,延时相位精度优于±10°,延时寄生调幅低于±1.3 dB,组件接收增益为23.3±0.6 dB。

Owing to the increased demand of wideband wide scan capabilities and beamforming for phased array antenna,time delay has become a suitable candidate versus conventional phase shifter in phased antenna radar.In this paper,an X-band high power and high efficiency time delay module is designed.Utilizing adaptable amplitude/phase compensation circuits,the improvement of amplitude modulation and phase error is achieved.On a basis of amplifying allocation and class C linear power amplifier pattern,higher efficiency and gain are guaranteed.In addition,electromagnetic coupling simulation and optimization of the hot transmission verify the stability.This research has reference value for the design and manufacture of the phased antenna radar transmitter or receiver module.Measured results show that transmitting output power is more than 5 W,module efficiency is higher than 46.3%,and delay phase/amplitude accuracy is within±10°and±1.3 dB,with 23.3±0.6 dB receiving gain.