公开(公告)号：WO2003001627A2

公开(公告)日：2003-01-03

申请号：PCT/US2002/019430

申请日：2002-06-16

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  LEE, Joseph, C.

Inventor： LEE, Joseph, C.

IPC: H01Q

CPC classification number: H01Q13/10 ,  H01Q9/28 ,  H01Q21/24 ,  H01Q21/29

Abstract: The present invention is directed toward a dual linear or circular polarized antenna comprised of two orthogonally linearly polarized radiative elements. More specifically, the present invention is for a slender slot-dipole antenna, where the slot and the dipole are located in the same physical structure. Feed line interference to the antenna can be eliminated by including a centrally located shaft. The antenna of the present invention can be used as either a receive antenna or a transmitting antenna and could be used to form an array. In one embodiment, the antenna is comprised of two substantially cylindrical members, wherein the slot is located on the outer surface of the antenna and the cylindrical members function as dipoles. Other embodiments are directed toward multiple slots and polygonal-shaped antennas.

Abstract translation: 本发明针对由两个正交线性极化辐射元件组成的双线性或圆极化天线。 更具体地说，本发明是用于细长的槽 - 偶极子天线，其中槽和偶极子位于相同的物理结构中。 通过包含位于中心的轴可以消除对天线的馈线干扰。 本发明的天线可以用作接收天线或发射天线，并且可以用来形成阵列。 在一个实施例中，天线由两个基本上圆柱形的部件组成，其中槽位于天线的外表面上并且圆柱形部件用作偶极子。 其他实施例涉及多个槽和多边形天线。

公开(公告)号：WO1993013570A1

公开(公告)日：1993-07-08

申请号：PCT/US1992011176

申请日：1992-12-23

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  LEE, Joseph, C.

IPC: H01Q13/06

CPC classification number: H01Q13/065 ,  H01Q19/08

Abstract: The widebeam antenna includes a tapered dielectric waveguide (18, 20) having a radiating end (14) and an end for coupling electromagnetic energy into and out of the dielectric waveguide. A conducting sleeve (16) surrounds the dielectric waveguide. A corrugated flange (26) surrounds the sleeve (16) near the radiating end (14) of the waveguide and a dielectric ring (32) also surrounds the radiating end (14) of the waveguide. It is preferred that the dielectric ring (32) has a dielectric constant in the range of 2.0 to 4.0. The structure of the invention provides substantially uniform hemispherical coverage for the transmission and reception of electromagnetic energy.