关键词: L波段, 功率合成, 同轴－波导

Abstract: In order to meet the technical requirements of power synthesis in the field of microwave and RF,a new type of L-band 6-channel coaxial-waveguide power synthesizer is designed and developed. The structure of the synthesizer is modeled and optimizedby using electromagnetic simulation software, and the synthesizer ismanufactured and tested.The test results show that the insertion loss of the synthesizer is less than 0.3dB, the return loss is better than－20dB, the isolation is better than－22dB, and the power capacity is up to 5200W in the L-band 1300MHz± 10 MHz operating frequency band. This synthesizer has many advantages such as high frequency, high power, low loss, high isolation, easy operation and low cost.

Key words: L-band, power synthesis, coaxial-waveguide