A low loss branch line coupler based on substrate integrated suspended line (SISL) technology and double-sided interconnected strip line (DSISL)

Yongqiang Wang, Kaixue Ma, Shouxian Mou, Ningning Yan, Lianyue Li

2015 Asia-Pacific Microwave Conference (APMC) · 2015 · 26 citations · 5 references

Concepts

Abstract

This paper proposes a low loss branch line coupler based on substrate integrated suspended line (SISL) technology and double-sided interconnected strip line (DSISL). Compared with conventional suspended line structure, the proposed SISL coupler has the advantages of self-packaging, compact size and low loss. DSISL is introduced in the design to further reduce the losses. A branch line SISL coupler has been designed and fabricated by printed circuit board technology. Simulation results and measurement results show great agreement.

References

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