| 摘要 |
PROBLEM TO BE SOLVED: To relieve an effect of a feeding pattern onto a transmission reception characteristic. SOLUTION: Relating to the microstrip antenna where one side of a dielectric base 1 has plural antenna elements 2 and nearly the entire face of the other side has a ground pattern 3, a feeding pattern 4 connecting the antenna elements 2 and a feeder 5 is placed on the side opposite to the side on which the antenna elements 2 are placed. Since the feeding pattern 4 does not act like a component of the microstrip line acting like the microstrip antenna, the effect of the feeding pattern 4 on the transmission reception characteristic of the entire antenna can be prevented. Furthermore, power is transmitted through a coplanar line consisting of the feeding pattern 4 and the ground pattern 3 on the same plane as the feeding pattern 4 between the antenna elements 2 and the feeder 5. |
