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本文讨论两个问题:蝙蝠翼天线和蝙蝠翼振子的馈电方法。这两种馈电方法都是针对我国蝙蝠翼天线的现状提出的。我国蝙蝠翼天线一般是对东西和南北两组分别进行馈电,一组坏了,对服务范围影响较大,甚至造成停播。本文提出对蝙蝠翼天线分上、下两半馈电,上下两半互为备份,一半坏了,对服务范围影响较小,不会造成停播。我国蝙蝠翼振子一般采用等长度馈电法,常常由于分馈电缆打火影响图象的质量并使馈电系统气密遭到破坏。本文提出不等长度馈电法,消除了这种现象,提高了天线的可靠性。
This article discusses two issues: feeding methods for batwing antennas and batwing vibrators. Both feeding methods are proposed for the current situation of batwing antenna in our country. China’s batwing antenna is generally fed to the east-west and north-south groups, one of which is broken, which has a great impact on the service range and even stops broadcasting. In this paper, Batwing antenna is divided into upper and lower half feeding, the upper and lower halves backup each other, half broken, the impact on the service area is small, will not result in stop broadcasting. Bat batwing vibrators in China generally use the same length feed method, which often affects the quality of the image and causes the gas-tightness of the feed system to be damaged. This paper presents unequal length feed method to eliminate this phenomenon and improve the reliability of the antenna.