Title :
Electro-thermal modelling and measurement of thermal time constants and natural convection in spatial power combining grid arrays
Author :
Batty, W. ; Panks, A.J. ; David, S. ; Johnson, R.G. ; Snowden, C.M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ., UK
Abstract :
The first theoretical study of thermal time constants in MMIC grid arrays is presented, indicating the significance of time dependent thermal effects for spatial power combining. Model validation against thermal images of passive grid arrays provides the first experimental demonstration of the impact of natural convection on grid array beam forming.
Keywords :
Arrays; MMIC; Modeling; Natural convection; Power combiners; Thermal analysis; MMIC grid arrays; electro-thermal measurement; electro-thermal modelling; grid array beamforming; model validation; natural convection; spatial power combining grid arrays; thermal images; thermal time constants; time dependent thermal effects; Electromagnetic heating; Impedance; Integrated circuit modeling; Laplace equations; MMICs; Millimeter wave technology; Power system modeling; Pulse modulation; Semiconductor process modeling; Time measurement;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.862362
