EP0631343A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Microstrip patch antenna array
Assignee: Allen Telecom LLC
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Filing: 1994-06-24
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Granted: —
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Expires: 2014-06-24
Abstract
Abstract A microstrip patch antenna array (10) incorporating a plurality of spaced-apart patch radiating elements (32) is electromagnetically coupled to a microstrip line (20) conductively coupled to a source of signals. Both the spaced-apart patch radiating elements (32) and the microstrip line (20) are located on the same side of an adjacent conductive substrate (12). The microstrip patch radiating elements (32) are arranged in a linear co-planar array electromagnetically excited by the field created by the air substrated microstrip line (20) passing adjacent thereto.
Inventors
- 👤 Peter Mailandt
- 👤 Tan D. Huynh
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 23:44
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/0006; H01Q21/0075; H01Q21/06; H01Q21/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
A microstrip patch antenna array (10) comprising: - a conductive substrate (12); - a conductive elongated microstrip line (20) extending along and spaced from said conductive substrate; - a connector (25) having a conductor (28) connected to said elongated microstrip line from at a feed point (30) located intermediate the ends thereof; - a plurality of generally rectangular patch radiating elements (32) disposed at selected positions along the length of said microstrip line (20), each of said patch radiating elements (32) being spaced one from the other and insulated from said conductive substrate (12) and from said microstrip line (20) and positioned adjacent to said microstrip line for electromagnetic excitation therefrom in response to a signal applied to said microstrip line at said feed point (30).
Claim 2
Dependent Claim
36 words
A microstrip patch antenna array as claimed in Claim 1 wherein said plurality of generally rectangular patch radiating elements (32) is disposed on the side of said microstrip line (20) opposite from said conductive substrate (12).
Claim 3
Dependent Claim
20 words
A microstrip patch antenna array as claimed in Claim 1 wherein said conductive substrate (12) acts as a ground plane.
Claim 4
Dependent Claim
28 words
A microstrip patch antenna array as claimed in Claim 1 wherein the ends of said elongated microstrip conductive line (20) are conductively connected to said conductive substrate (12).
Claim 5
Dependent Claim
67 words
A microstrip patch antenna array as claimed in Claim 1 where each of said patch radiating elements (32) includes a coupling portion (34) disposed generally centrally thereof and an outer radiating portion (38) surrounding said coupling portion, said coupling portion (34) being physically separated from said radiating portion (38) about a substantial portion of the peripheral edge thereof and being connected thereto at a boundary (40) therebetween.
Claim 6
Dependent Claim
37 words
A microstrip patch antenna array as claimed in Claim 5 wherein said coupling portion (34) of each of said patch radiating elements (32) is disposed over and positioned to be bisected by said elongated microstrip line (20).
Claim 7
Dependent Claim
55 words
A microstrip patch antenna array as claimed in Claim 5 wherein the distance from the center (32a) of each of said patch radiating elements (32) to the center of an adjacent one of said patch radiating elements is approximately equal to one wavelength for the operating frequency range of said microstrip patch antenna array (10).
Claim 8
Dependent Claim
50 words
A microstrip patch antenna array as claimed in Claim 1 including an even number of said patch radiating elements (32) wherein half of said radiating elements are disposed on one side of said feed point (30) and the remaining elements are disposed on the other side of said feed point.
Claim 9
Dependent Claim
45 words
A microstrip patch antenna array as claimed in Claim 8 wherein the orientation of said patch radiating elements (32) on one side of said feed point (30) is reversed from the orientation of said patch radiating elements on the other side of said feed point.
Claim 10
Dependent Claim
46 words
A microstrip patch antenna array as claimed in Claim 9 wherein the distance from the feed point (30) to the boundary (40) between the coupling and radiating portions (34, 38) of the patch radiating elements (32) is about equal to an odd number of one-quarter wavelengths.
Claim 11
Dependent Claim
50 words
A microstrip patch antenna array as claimed in Claim 1 including a tuning member (44) disposed along and connected to said elongated microstrip line (20) and disposed between said feed point (30) and one of the two closest ones of said radiating elements (32) and immediately adjacent the edge thereof.
References Cited (Backward Citations)
US4766440A
Cited
US4893129A
Cited
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