Filter, branching filter, communication module, an

专利名称：Filter, branching filter, communication

module, and communication equipment

发明人：Jun Tsutsumi,Kazuhiro Matsumoto申请号：US12918781申请日：20080220公开号：US08367941B2公开日：20130205

专利附图：

摘要：A filter of the present invention is a filter including a substrate and a filterelement mounted on the substrate, wherein the substrate is provided with a plurality ofwiring layers including a filter element wiring layer which is formed with wirings and

connected with the filter element, an insulating layer interposed between the pluralwiring layers and a ground pattern formed in at least a part of a wiring layer under thefilter element wiring layer; and the thickness of the insulating layer interposed betweenthe filter element wiring layer and the other wiring layer is smaller than the width of thewiring formed in the filter element wiring layer, and is larger than the thickness of theother wiring layer. By such a configuration, a thin, high-suppression and high-isolationfilter can be realized.

申请人：Jun Tsutsumi,Kazuhiro Matsumoto

地址：Tokyo JP,Tokyo JP

国籍：JP,JP

代理机构：Chen Yoshimura LLP

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