A novel 10MHz-4GHz Wilkinson power divider using lumped compensation elements

[摘要] Future cable television (CATV) and satellite-television receiver systems require the development of wideband power dividers (PDs) covering a few megahertz to a few gigahertz. Conventional PDs designed using either distributed circuits or lumped elements cannot accomplish this purpose. In this paper, a novel ultrawideband wideband PD is developed with a combined design of both the distributed transmission line Wilkinson power divider (WPD) and the lumped compensation elements. The WPD is designed at 2.2GHz with a small configuration, while the loaded chip resistors and capacitors compensate its performance well at frequencies down to megahertz. The configuration and design method of the proposed divider is described, and a microstrip WPD is fabricated and measured. The simulated and measured responses of the WPD agree well over 10MHz∼4GHz, and both satisfy well the design specifications. To our knowledge, this is the first report of a WPD that covers an ultrawide frequency band from a few megahertz to a few gigahertz.

[学科分类] 电子、光学、磁材料

[关键词] Wilkinson power divider (WPD);ultra-wideband;megahertz;gigahertz;distributed transmission line;compensation element;lumped resistor and capacitor