首页> 外文期刊>Proceedings of the IEE - Part B: Electronic and Communication Engineering >The performance of directive aerials in complex u.h.f. fields
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The performance of directive aerials in complex u.h.f. fields

机译:定向天线在复杂地面上的性能领域

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The paper describes an investigation, at frequencies of 580 and 904 Mc/s, of the apparent gains relative to a half-wavelength dipole of a number of directive aerials at a typical selection of receiving sites in urban and rural areas. It is shown that variations of the apparent gains occur, as a result of the complexity of the radio field patterns generally found at such sites, to an extent which may be significant in the estimation of the coverage of transmitters operating in the broadcasting bands IV and V.
机译:该论文描述了在580和904 Mc / s的频率下,对典型的城市和农村地区接收地点相对于许多定向天线的半波长偶极子的表观增益进行的调查。结果表明,视在增益的变化是由于通常在此类站点发现的无线电场模式的复杂性而导致的,这种变化的程度可能对估计在IV和广播频段工作的发射机的覆盖范围产生重要影响。 V.

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