Patent ID: 9203161
Filing Date: 2015-12-01
Classification: H01Q

Abstract:
1. An antenna apparatus comprising: high-frequency output means for outputting a high-frequency signal; antenna means comprising a first excitation unit and a second excitation unit, the first excitation unit emitting a first linearly polarized wave according to the high-frequency signal output from the high-frequency output means, the second excitation unit emitting a second linearly polarized wave that is orthogonal to the first linearly polarized wave at the same time with the first linearly polarized wave according to the high-frequency signal output from the high-frequency output means; and phase adjustment means for adjusting a phase of at least one of the high-frequency signal to be input to the first excitation unit and the high-frequency signal to be input to the second excitation unit in a range of change from 0 to 270 or more degrees, wherein the high-frequency output means and the first excitation unit and the second excitation unit of the antenna means are connected via a pair of power supply lines, and wherein the phase adjustment means is provided in at least one of the pair of power supply lines, and wherein the range of change from 0 to 270 or more degrees is a range obtained by adding a phase error amount generated by a manufacturing error of the power supply lines to the range from 0 to 270 degrees.