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Planar PBG Structures: Basic Properties and Applications
Fei-Ran YANG Roberto COCCIOLI Yongxi QIAN Tatsuo ITOH
IEICE TRANSACTIONS on Electronics
Publication Date: 2000/05/25
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Recent Developments in Guided-Wave Problems)
photonic band-gap (PBG), electromagnetic crystal, conductor-backed coplanar waveguide (CBCPW), microstrip filter, patch antenna,
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This paper reviews recent progresses in the research and development of planar photonic band-gap (PBG) structures, also called electromagnetic crystals, for microwave and millimeter-wave applications. Planar electromagnetic crystals are particularly attractive and intensively investigated because of their easy fabrication, low cost, and compatibility with standard planar circuit technology. Two configurations and their applications are described in this paper: a square lattice of holes etched in a ground plane and the recently developed Uniplanar Compact PBG (UC-PBG) structure. Basic properties as well as applications to microwave circuits are reported. These include harmonic tuning in power amplifier, leakage suppression in conductor-backed coplanar waveguide (CB-CPW), realization of planar slow-wave structure, and performance improvement in microstrip filters and patch antennas.