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采用公共支路、发射支路、接收支路和电源调制及控制电路,设计制作了一种X波段大功率T/R组件。在组件中,利用低温共烧陶瓷(LTCC)基板实现了多层互连,采用Wilkinson功率合成器实现了大功率输出。在组件布局上,充分考虑腔体效应,合理安排各电路单元。在制作工艺方面,采用单元装配的方式,合理设置温度梯度。该组件在X波段9～10 GHz带宽范围内,接收支路噪声系数小于3.1 dB,接收增益为(25.7±0.2)dB,发射支路的功率增益大于30 dB,输出脉冲功率大于15W,移相均方根误差小于2°,衰减幅度均方根误差小于0.25 dB。
The X-band high-power T / R module is designed and manufactured by using public branch, transmitting branch, receiving branch and power modulation and control circuit. In the assembly, multilevel interconnects are implemented with low temperature co-fired ceramic (LTCC) substrates and high power output is achieved using the Wilkinson power combiner. In the component layout, give full consideration to the cavity effect, and arrange each circuit unit reasonably. In the production process, the use of unit assembly, a reasonable set temperature gradient. The module has a receiver noise figure of less than 3.1 dB, a receive gain of (25.7 ± 0.2) dB, a power gain of more than 30 dB for the transmit branch and an output pulse power of more than 15 W in the X-band 9 to 10 GHz bandwidth. The root mean square error is less than 2 ° and the root mean square error of attenuation is less than 0.25 dB.