| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microstrip antenna of a stack structure, which can eliminate the need for using troublesome assembling and extra members and can fixedly support the upper- and lower-side microstrip antennas, while keeping an interval therebetween. <P>SOLUTION: In the microstrip antenna for 2 frequencies, in a structure wherein upper and slower microstrip antennas to be operated with two different frequencies are stacked, the upper microstrip antenna is supplied with power from the upper-side coaxial line passing through the center of the lower microstrip antenna, and the lower microstrip antenna and an installation conductor are connected by an external conductor of the upper coaxial line. <P>COPYRIGHT: (C)2003,JPO |
