| 摘要 |
<p>PURPOSE:To provide a radio repeater which unnecessitates the supply of power supply and is capable of performing the control of beam directions from a base station. CONSTITUTION:This device is provided with first antenna groups 6 and 7 composed of antennae 9 and 10 operating in a first frequency band and receiving each one of polarized waves which are orthogonally crossed with each other and antennae 11 and 12 operating in a second frequency band which is different from this and receiving each one of polarized waves which are orthogonally crossed with each other and a second antenna group 8 composed of non-linear elements 2a to 2d having three input/output elements and antennae 13 to 16 which are directed to each different direction and connected with each output terminal 4a to 4d of the non-linear elements 2a to 2d. The antenna 9, the antenna 10, the antenna 11 and the antenna 12 are connected with the input terminals 3a and 3b of the non-linear elements 2a and 2b, the input terminals 3c and 3d of the non-linear elements 2c and 2d, the input terminals 5a and 5c of the non-linear elements 2a and 2c, and the input terminals 5b and 5d of the non-linear elements 2b and 2d, respectively.</p> |
