SHEET ARRAY ANTENNA STRUCTURE

• US 3,757,342 A
• Filed: 06/28/1972
• Issued: 09/04/1973
• Est. Priority Date: 06/28/1972
• Status: Expired due to Term

• Current Assignee: Henry Jasik, Robert Leonard Myslicki, Ronald Myron Rudish
• Original Assignee: Henry Jasik, Robert Leonard Myslicki, Ronald Myron Rudish
• Inventors: Jasik, Henry, Myslicki, Robert Leonard, Rudish, Ronald Myron
• Primary Examiner(s): Lieberman, Eli
• Application Number:
  US05/267,161
• Time in Patent Office: 433 Days
• Field of Search: 343/700,846,895,738,853 333/84M
• US Class Current: 343/738
• CPC Class Codes: H01Q 21/12 Parallel arrangements of substantially straight elongated conductive units travelling-wave antennas comprising transmission line loaded with transverse elements H01Q11/02; Yagi antennas H01Q19/30
• CPC Class Codes: H01Q 9/065 Microstrip dipole antennas patch antenna H01Q9/0407

Abstract

Arrays wherein the radiator elements act also as shield conductors of feed lines arranged to provide cophasal interconnection of the radiators without physical transpositions, particularly adaptable to fabrication by etched circuit techniques, as microstrip on the surfaces of a single dielectric substrate.

Claims

1. An array antenna comprising:

a. an untransposed open transmission line having two generally parallel elongated conductors, b. each of said conductors having a transverse dimension that alternates between a maximum value and a minimum value over successive half wavelength intervals along the length of said line, c. the regions of maximum transverse dimension of each of said conductors being adjacent the regions of minimum transverse dimension of the other.

2. The invention set forth in claim 1, wherein said conductors are flat strips disposed on an insulating plate, and said alternating transverse dimension is width.

3. The invention set forth in claim 2, wherein said conductors are on opposite surfaces of said plate.

4. The invention set forth in claim 1, further including means for reflectively terminating one end of said line.

5. The invention set forth in claim 2, further including a plurality of similar longitudinally coextensive structures disposed at laterally spaced locations on said insulating plate to provide a sheet array of respectively collinear arrays.