Broadband microstrip antenna having a microstrip feedline trough formed in a radiating element
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 6, 2001
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Jan 21, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A microstrip antenna includes a ground plane element and a radiating element. An elongated trough is formed generally in the middle of the radiating element so as to divide the radiating element into two generally equally-sized portions, and in a manner to extend outward from a bottom surface of the radiating element. The trough includes a first side edge, a second side edge, and a bottom surface. A first radiating portion extends from the first side edge, and a second radiating portion extends from the second side edge. The trough provides an elongated microstrip-size element at the bottom surface of the trough. A relatively thin dielectric layer is provided between the bottom surface of the trough and a corresponding portion of the ground plane element, thereby providing that a microstrip transmission line is formed by the bottom surface of the trough, the thin dielectric layer, and the corresponding portion of the ground plane element. A first feed conductor is connected to the ground plane element, and a second feed conductor is connected to the bottom of the trough.
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