Patent ID: 6601641
Filing Date: 2003-08-05
Classification: H01L

Abstract:
An oil-cooled high power amplifier system comprising:a high power amplifying device including a multistage depressed collector (MSDC) having a plurality of collector electrodes; a hollow fluid passageway thermally connected to one or more collector electrodes of the MSDC of the high power amplifying device; an oil-based fluid contained in the fluid passageway, wherein the oil-based fluid removes thermal energy from the collector electrodes of the MSDC of the high power amplifying device; an oil pump connected to the fluid passageway to circulate the oil-based fluid; and an oil heat-exchanger connected to the fluid passageway for removing the thermal energy from the oil-based fluid, said oil heat-exchanger including a cooling fluid passageway in thermal contact with said hollow fluid passageway; a cooling fluid within said cooling fluid passageway, wherein said cooling fluid absorbs thermal energy from said oil-based fluid; a cooling fluid heat exchanger connected to said cooling fluid passageway for removing thermal energy from said cooling fluid; a cooling fluid tank functioning as a reservoir and for accommodating thermal expansion of said cooling fluid; and a cooling fluid pump connected to said cooling fluid passageway for circulating said cooling fluid within said cooling fluid passageway.