friends, i have got stuck in MOSFETs which we did today in class. i could not follow how MESFETS work- all i remember and my notes say is that i use a tungsten metal instead of metal oxide as we use in MOSFETS. but i could not detergent the mechanism. can anyone please help me a bit..... also, can anyone tell me what is impedance matching? i dont know if its related to this topic,sorry. but i found it in my notes. thanks a lot for any help.