CORPORATE-NETWORK PRINTED ANTENNA SYSTEM

• US 3,587,110 A
• Filed: 07/01/1969
• Issued: 06/22/1971
• Est. Priority Date: 07/01/1969
• Status: Expired due to Term

• Current Assignee: Woodward Oakley Mcdonald
• Original Assignee: Woodward Oakley Mcdonald
• Inventors: WOODWARD OAKLEY MCDONALD
• Application Number:
  US04/838,226
• Time in Patent Office: 721 Days
• US Class Current: 343/813
• CPC Class Codes: H01Q 21/062 using dipole aerials; H01Q21/067, H01Q21/068 take precedence
• CPC Class Codes: H01Q 9/065 Microstrip dipole antennas patch antenna H01Q9/0407

Abstract

A corporate-network printed antenna system is described wherein the feed lines are located in coplanar relationship with and in the field of the antenna.

Claims

1. An antenna system comprising:

a broad sheet of dielectric material, a plurality of planar dipole elements with a first half portion of each dipole element fixed to one of the broad surfaces of said sheet and with the second half portion of each dipole element fixed to the opposite broad surface of said sheet, feed means including two narrow conductive strips fixed in opposed relation on said broad surfaces of said dielectric sheet and extending from a common feed point to said plurality of dipole elements with a length between the common feed point and one of said dipole elements being the same as that from the common feed point to any of the other dipole elements, said dipole elements being arranged on said sheet so that said feed means extends horizontally and vertically from said common feed point to said elements, said horizontally extending feed means at the junction with said vertically extending feed means having a notch located thereat in a manner so that currents will not be introduced into the feed means which are equal in magnitude and flow in the same direction.

2. An antenna system comprising:

a broad sheet of dielectric material, a plurality of planar dipole elements with a first half portion of each dipole element fixed to one of the broad surfaces of said sheet and with the second half portion of each dipole element fixed to the opposite broad surface of said sheet, feed means including two narrow conductive strips fixed in opposed relation on said broad surfaces of said dielectric sheet and extending from a common feed point to said plurality of dipole elements with the length between the common feed point and one of said dipole elements being the same as that from the common feed point to any of the other dipole elements, said feed means being unbalanced for a given length from said common feed point and balanced from the end of said given length remote from said common feed point to said dipole elements.

3. The combination as claimed in claim 2, wherein one of said conductive strips forming said given length of said feed means is of constant width and the second conductive strip forming said given length of said feed means is tapered in width to provide said unbalance, the common feed point being located at the narrowest end of said given length.