Title:
小型マルチバンドアンテナ
Document Type and Number:
Japanese Patent JP2004527173
Kind Code:
A
Abstract:
The invention is a multi-band antenna in which two, three or more antennas are contained within a single housing/radome. Two top-loaded monopole antennas are nested together with one of the antennas being positioned between the ground plate and top plate of the other antenna. Inductive shunts for counteracting the capacitance in the two top-loaded monopole antennas can be provided by hollow conductive tubes in order to help the antenna more closely emulate a purely resistive 50 ohm impedance. A third, microstrip antenna may be positioned on top of the top conductive plate of the outer top-loaded monopole antenna. The cable for the microstrip antenna is routed through the ground plate and top plate of at least one of the top-loaded antennas and through the inside of one of the hollow inductive shunts.
Inventors:
Scrandany, James Matthew
Rover, Thomas S
Rover, Thomas S
Application Number:
JP2002578603A
Publication Date:
September 02, 2004
Filing Date:
March 27, 2002
Export Citation:
Assignee:
Tyco Electronics Corporation
International Classes:
H01Q1/42; H01Q1/32; H01Q5/00; H01Q5/10; H01Q5/40; H01Q9/04; H01Q9/36; H01Q9/38; H01Q21/28; H01Q21/30; (IPC1-7): H01Q5/01; H01Q1/42; H01Q9/36; H01Q9/38
Attorney, Agent or Firm:
Tyco Electronics Amplifier Co., Ltd.