| 摘要 |
PROBLEM TO BE SOLVED: To attain excellent satellite communication and to improve the productivity by providing a connecting section for signal transmission between an upper circularly polarized wave antenna and the portable radio equipment. SOLUTION: A connecting sections 5 is made of a coaxial line 9 or a microstrip line and acting as parting a circularly polarized wave antenna 14 made of the coaxial line 9 or the like and the potable telephone set 92. A slide connector 13 is provided to an upper/right face of the portable telephone set 92. A slide connector 12 is provided to a side face of the connecting section 5 so as to load/unload an antenna support 10 freely. The length of the connecting section 5 is selected to be 20-100% at a physical length of the circularly polarized wave antenna or 0.1-0.5 wavelength of the circularly polarized wave antenna element, Since the connecting section 5 is provided to the antenna support 10 in this way, a distance between a telephone set case and the helical antenna 14 and a distance between a head of a human body and the helical antenna 14 are selected large and the antenna characteristic is maintained. |
