公开(公告)号：WO2004019445A2

公开(公告)日：2004-03-04

申请号：PCT/US2003/021960

申请日：2003-07-16

Applicant: BERMAI, INC.

Inventor： SIEGLER II, Michael, J. ,  SAINATI, Robert

IPC: H01Q

CPC classification number: H01Q9/285 ,  H01Q1/243

Abstract: The invention provides a multi-layer antenna structure for use in a wireless communication system. The antenna may be integrated within a multi-layer circuit structure such as a multi-layer printed circuit board. The multi-layer antenna structure may include, for example, a radiating component and a conductive strip feed-line that electromagnetically couples to the radiating component to directly feed the radiating component. The conductive strip feed-line may be fabricated to form a balun. The conductive strip feed-line may, for example, form a quarter-wavelength open circuit in order to realize the balun. The balun may perform signal transformations, e.g., unbalanced to balanced, as well as impedance transformations. The radiating component and the conductive strip feed-line forming the balun may be formed on different layers of a multi-layer circuit structure.

Abstract translation: 本发明提供一种用于无线通信系统的多层天线结构。 天线可以集成在诸如多层印刷电路板的多层电路结构中。 多层天线结构可以包括例如电磁耦合到辐射部件以直接馈送辐射部件的辐射部件和导电条馈送线。 可以制造导电条馈送线以形成平衡 - 不平衡变换器。 导电条馈电线可以例如形成四分之一波长的开路以实现平衡 - 不平衡转换。 平衡 - 不平衡变换器可以执行信号变换，例如不平衡到平衡以及阻抗变换。 形成平衡 - 不平衡转换器的辐射元件和导电条馈送线可以形成在多层电路结构的不同层上。