Single-point feedback microstrip patch antenna and be used for this radiator

摘要

The present invention relates to microstrip antennas, the radiator motif (2) of the earth's surface (1) and conduction that are formed by conductive material, wherein ground (1) size is greater than a radiator motif (2) and radiator motif (2) apart from earth's surface (1) lies usually about 0.01 to 0.In 1 range { lambda }. G, wherein { lambda }. G indicates wavelength on given substrate. Space extending is filled air in earth's surface (1) and radiator motif (2), optionally with medium substrate. In radiator motif (2), executes at least one slot and be symmetrical with center (3) and be located at the radiator motif (2) and there is length 0.4 to 0.In the range of 5 { lambda }. Its width g be located at about 0.005 to about 0.In 1 range { lambda }. g. Distance (3) trunnion axis is located at the top of slot or the motif (2) at bottom margin, depends on the circumstances, y-axis direction scope is 0.4 to 0.6 {lambda}. G depends on the circumstances lies { lambda } distance 0. along the x-axis direction from the motif (2) that pattern (2) distance on given side and slot (3) horizontal axis (3) carry out left or right hand35 to 0.45. G is from given edge. The microstrip patch antennas of the single feeding of the present invention, it is also a part of the invention to be formed, it executes, it is executed on a time slot (3) so that there are the side motif (2) of bottom heat spreader dielectric substrate (6) and microstrip line (7) to overlap, the wherein microstrip line (7) overlapping { lambda }. G is at most 0.5. The ground (1) of original conduction is as the microstrip line (7) of sieve plate while the motif (2) of radiator is used as reflecting plate. Radiator motif (2) forms ground plane microstrip line (7), for connecting the outer conductor of feed connector, wherein the feed connector central conductor and microstrip line (7).