Portal de Periódicos da CAPES

The Shunt-Excited Antenna

1937; Institute of Electrical and Electronics Engineers; Volume: 25; Issue: 6 Linguagem: Inglês

10.1109/jrproc.1937.228173

2162-6634

Jim Morrison, Phillip H. Smith,

Lightning and Electromagnetic Phenomena

The paper describes an arrangement for exciting a vertical broadcast antenna with the base grounded. Construction economy results through the elimination of the base insulator, the tower lighting chokes, and the usual lightning protective devices. The coupling apparatus at the antenna end of the transmission line is reduced to an extent which may make unnecessary a separate building for its protection. Greater freedom from interruptions resulting from static discharges is expected. The performance of the design is substantially the same as that obtained from the antennas now in general use. The paper describes experimental work done, results obtained, and inferences to be drawn from them. A mathematical appendix is attached.