作者: James Blake Winter
DOI:
关键词:
摘要: A single antenna element with a switchable extension may be used to change the size of radiating surface and provide an that has two or more separate center frequencies. The range frequencies tuned by is enhanced, while maintaining relatively low complexity tuning matching circuitry. Switching for performed switching located at point connection element. control line supplies signal enable disable extension. positioned in close proximity enhance coupling between line.