| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately determine the performance of a radio terminal which handles a broadband signal while also including mismatching of an antenna. <P>SOLUTION: A radio terminal transmission/reception performance measuring apparatus includes a coupler 20 and a spectrum analyzer (measuring unit) 50. The coupler 20 has a space in an elliptic sphere shape surrounded with a metal wall reflecting radio waves, holds a sampler 10 of a radio terminal at one focal point F1 on an elliptical long axis within the space or at a nearby position and holds a test antenna 11 at another focal point F2 or at a nearby position. The spectrum analyzer (measuring unit) 50 is connected to the test antenna 11 held inside the coupler 20, transmits/receives radio waves to/from the sampler 10 via the test antenna 11 and acquires information required for evaluating a performance of the sampler 10. The test antenna 11 is covered with a radio wave absorber block 30 for attenuating radio waves centralized into a region where the test antenna 11 is disposed, and radiated to the metal wall. <P>COPYRIGHT: (C)2012,JPO&INPIT |
