| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of processes and to facilitate adjustment by providing a port for power supply connected to a power feeding line and connecting the distance from the port among power feeding lines to any specified part adjusted for optimum matching. SOLUTION: As a radiating element composed of metal body structure having a predetermined dimension, the lower part of the antenna element 1 is connected to a power feeding line 2 composed of a microstrip line. This power feeding line 2 is printed on a horizontal background substrate 3, and power is supplied by a port 4 for power supply. A distance S from a connecting part between the antenna element 1 and the power feeding line 2 to the port 4 is adjusted to any specified value for optimum matching by sliding and moving the antenna element 1 along with the power feeding line 2. Namely, since the adjustment to the specified value for getting optimum matching can be easily achieved by moving the antenna element 1 along with the power feeding line 2 for supplying power to this element, time required for adjustment is shortened. |
