Microwave Applications of Photonic Band-Gap (PBG) Structures

摘要

Photonic band-gap (PBG) structures are essentially periodic lattices which can provide effective and flexible control of the propagation of electromagnetic waves along specific or all directions. This paper gives an overview of a novel planar-oriented PBG structure developed recently at the authors group. This uniplanar compact PBG (UC-PBG) lattice is very simple to implement, and its usefulness has been demonstrated successfully by several application examples such as low and band pass filters, leakage suppression in CB-CPWs and striplines, as well as harmonic tuning for high efficiency microwave power amplifiers.