| 摘要 |
<p>A radio relay system using radio frequency, the radio relay system comprising: first receiving anntena part and second receiving anntena part, performs a composition after substract two signals detected by two receiving anntena parts, and after composing three signals having delayed signal of a degree a forth of wavelength from formally composed of two signals and two receiving signals detected by two receiving anntena parts as a rate, and eliminate interference signal of a shot distance of phase and compose secondarily reflection interference signal of delayed, not eliminating by phase method, and transmission signal of inverse phase.</p> |
