- A wideband patch antenna with co-planar waveguide feeding structure

摘要

PURPOSE: A broadband flat antenna having a co-planar waveguide feeding structure is provided to reduce inductive reactance according to a probe feeding method by using a co-planar waveguide feeding method. CONSTITUTION: A feeding cable(15) is electrically connected to a feeding strip line(13) through the first and the second printed circuit boards(14,16). An input signal is transmitted to the feeding strip line(13) through the feeding cable(15). The transmitted signal is electromagnetically coupled with a radiative patch(11). A ground plate(17) is formed by a rectangular conductive material. A size of the ground plate(17) is larger than the size of the radiative patch(11). The ground plate(17) is formed by printing the conductive material on an upper portion of the first printed circuit board(14). A ground hole is formed in a predetermined position of the first printed circuit board(14). The radiative patch(11) is printed on an upper portion of the second printed circuit board(16). The feeding strip line(13) is formed at one side of the radiative patch(11) of the second printed circuit board(16).