CAJ | 학술논문

用实数形式的电偶极子电磁场表达式,计算了电偶极子天线的平均能流密度和辐射电阻,纠正了近期一篇论文的错误.计算结果表明：不论考虑还是忽略电磁场的1/r高次幂项,电偶极子的平均能流密度和辐射电阻都是一样的;也就是说,电偶极子电磁场的1/r高次幂项是束缚电磁波,对平均能流密度和辐射电阻没有贡献,在这个意义上讲,教科书的辐射电阻公式Rr=2π/（3cε0）（l/λ）2是精确的.
용실수형식적전우겁자전자장표체식,계산료전우겁자천선적평균능류밀도화복사전조,규정료근기일편논문적착오.계산결과표명：불론고필환시홀략전자장적1/r고차멱항,전우겁자적평균능류밀도화복사전조도시일양적;야취시설,전우겁자전자장적1/r고차멱항시속박전자파,대평균능류밀도화복사전조몰유공헌,재저개의의상강,교과서적복사전조공식Rr=2π/（3cε0）（l/λ）2시정학적.
Abstract： By using the real expression of the electric dipole electromagnetic field, the average energy flow density and the radiation resistance of the electric dipole are calculated. The mistake from a recent literature is corrected. It is shown that the radiation resistance is the same whether consider or ignore the higher order terms of 1/r in the electric dipole electromagnetic field. That is to say, the higher order terms of 1/r in the electric dipole electromagnetic field energy flow density and the radiation resistance. textbooks is accurate. are bound wave, which do not contribute to the average In this sense, the formula Rr=2n/（3c0）（//R）2in the