公开(公告)号：US06650295B2

公开(公告)日：2003-11-18

申请号：US10058823

申请日：2002-01-28

Applicant: Jani Ollikainen ,  Outi Kivekäs ,  Pertti Vainikainen

Inventor： Jani Ollikainen ,  Outi Kivekäs ,  Pertti Vainikainen

IPC: H01Q138

CPC classification number: H01Q9/0421 ,  H01Q1/243 ,  H01Q9/0442

Abstract: A radio antenna comprising a tuning component, such as a transmission line, coupled to the radiating element for providing a frequency shift from the resonant frequency, and an adjustment mechanism for adjusting the frequency shift by effectively changing the length of the transmission line. The adjustment mechanism comprises one or more extension lines, and a switching mechanism, which can be closed to couple one or more of the extension lines to the transmission line. The tuning component can also be one or more lumped reactive elements.

Abstract translation: 一种无线电天线，包括耦合到辐射元件的诸如传输线的调谐组件，用于提供来自谐振频率的频移;以及调节机构，用于通过有效地改变传输线的长度来调整频移。 调节机构包括一条或多条延长线，以及切换机构，其可以被关闭以将一条或多条延长线连接到传输线。 调谐组件也可以是一个或多个集总反应元件。

公开(公告)号：US6008764A

公开(公告)日：1999-12-28

申请号：US47149

申请日：1998-03-24

Applicant: Jani Ollikainen ,  Pertti Vainikainen

Inventor： Jani Ollikainen ,  Pertti Vainikainen

IPC: H01Q5/00 ,  H01Q5/371 ,  H01Q5/378 ,  H01Q9/04 ,  H01Q19/00 ,  H01Q1/38

CPC classification number: H01Q19/005 ,  H01Q5/371 ,  H01Q5/378 ,  H01Q9/0414

Abstract: The invention relates to antenna structures, particularly to substantially planar broadband antennas realized by microstrips. The antenna structure according to the invention has at least two superimposed strips (10, 20), which have a length of about a quarter-wave and which at one end are short circuited to the ground plane (30). The strips (10, 20) have certain resonance frequencies, which are tuned close to each other so that the operating band of the antenna structure is substantially continuous.

Abstract translation: 本发明涉及天线结构，特别涉及通过微带实现的基本上平面的宽带天线。 根据本发明的天线结构具有至少两个重叠的条带（10,20），其具有约四分之一波的长度，并且其一端与接地平面（30）短路。 条带（10,20）具有某些共振频率，它们被彼此接近调谐，使得天线结构的工作频带基本连续。