Evaluation of a Quarterwave Stub Antenna for TIROS Satellite Application

摘要

The TIROS-N quarterwave stub antenna communicated accurate position locations during low power level operations based on data processed by the Local User's Terminal (LUT) and Service ARGOS. This style of antenna is essential for use with a small, portable package, and is ideally suited for use on the marine mammal transmitter package. The antenna gain and radiation pattern and vertical polarization enhance the applicability. However, for marine mammal transmitter applications, a spring at the base of the antenna is required to provide flexibility and protection to the animal, and the antenna must serve as a seawater sensor requiring it to be insulated from the seawater environment except at the sensory location. These problems appear to have been solved for the NIMBUS system, and the TIROS system will be designed accordingly.