PROBLEM TO BE SOLVED: To provide a multi-band corresponding microstrip antenna technique, capable of coping with multiple frequencies with one feeding point, capable of easy connection with an RF circuit, and capable of realizing proper transmission/reception efficiency.;SOLUTION: A rectangular feed element 12 and a rectangular passive element 14 surrounding the feed element are arranged on the upper face of a dielectric 10 into a matrix shape. A rectangular radiating element 16 is formed by connecting between the feed element 12 and the passive element 14, and between the adjacent passive elements 14 with switches 15. The length in the excitation direction among the sides of the feed element 12 is set as L, the length of the side orthogonal to the excitation direction as W, the distance between the side orthogonal to the excitation direction and a feeding point 13 as Li, the distance between the side in the excitation direction and the feeding point 13 as Wi, and the length in the excitation direction among the sides of the rectangular radiating element 16 is set as L', the length of the side orthogonal to the excitation direction as W', the distance between the side orthogonal to the excitation direction and the feeding point 13 as Li', and the distance between the side in the excitation direction and the feeding point 13 as Wi'. In this case, it is set so that L/W=L'/W', Li/L=Li'/L', and Wi/W=Wi'/W'.;COPYRIGHT: (C)2006,JPO&NCIPI
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机译：要解决的问题：提供一种多频段对应的微带天线技术，能够以一个馈电点应对多个频率，能够轻松连接射频电路，并能够实现适当的发射/接收效率。矩形馈电元件12和围绕馈电元件的矩形无源元件14在电介质10的上表面上布置成矩阵形状。通过在馈电元件12和无源元件14之间以及在相邻的无源元件14之间通过开关15连接而形成矩形的辐射元件16。馈电元件12的侧面之间在激励方向上的长度设为L，与激励方向正交的边的长度为W，与激励方向正交的边与馈电点13之间的距离为Li，在激励方向上的侧面与馈电点13之间的距离为Wi，以及将矩形散热元件16的侧面中的沿激励方向的长度设为L'，将与激励方向正交的侧面的长度设为W'，将与激励方向正交的侧面与馈电点13之间的距离设为Li′，激励方向侧与馈电点13之间的距离为Wi′。在这种情况下，将其设置为L / W = L'/ W'，Li / L = Li'/ L'和Wi / W = Wi'/ W'。;版权所有：（C）2006，JPO＆NCIPI
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