A Design of CBand Improved Radial Power Combiner.pdfVIP

A Design of C-Band Improved Radial Power Combiner CHENG Haifeng, ZHANG bin National Key Laboratory of Monolithic Integrated circuits modules, Nanjing Electronic Devices Institute, P. R. China Abstract MMIC amplifiers’ VSWRs usually 2 and have poor This paper shows a design of improved radial power uniformity, so when MMIC are used for combining, the combiner used for combining a large number of MMIC incident signals sometimes are distinctness. In actual power amplifiers. We analyzed the characteristics of the engineering applications, one way of the inputs maybe MMIC power amplifiers, and developed a 16 way abnormal even broken. In this case, if the combiner has bad improved radial power combiner worked at 5-6GHz which input VSWRs or poor isolation, the efficiency will fall has the VSWRs of both input and output 1.7, the ports down quickly. In this paper the primary job is to improve imbalance of the amplitude ±0.4, as well as the phase VSWR and isolations. To achieve the goals, we improved the structure of the former radial combiner. ±2 degrees, a high isolations, and also has a small size of 56mm diameter. The combiner is expected to reach an efficiency of near 90%. 1. Instuction In recent years the technology of high-power microwave combining has become the focus of people. High-power microwave devices,