| 摘要 |
Provided are a fiber optic rotary joint, an antenna having the same, an antenna measurement system, and a wireless communication system. An antenna measurement system includes an electro-optic converting unit for converting an electric signal to an optical signal, a first optical fiber for transferring the converted optical signal from the electro-optic converting unit, a second optical fiber having a diameter larger than the first optical fiber and transferring the optical signal outputted from the first optical fiber, an align unit for aligning the first optical fiber with the second optical fiber, and an opto-electric converting unit for converting the optical signal outputted from the second optical fiber to the electric signal.
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