Miniature dual mode planar filters
作者： John A. Curtis , Slawomir J. Fiedziuszko
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摘要: A dual mode microstrip resonator (1) usable in the design of microwave communication filters. The substantially square provides paths for a pair orthogonal signals which are coupled together using perturbation located at least one corner (1). can be introduced by notching (3) or adding metallic dielectric stub (83) to
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