My group had a design based on the http://www.analog.com/en/rfif-components/log-ampsdetectors/ad8302/products/product.html" [Broken] which was going to do our task of phase detection by use of what I can best tell was just some log amplifiers and . Well the AD8302 is a TSSOP package and I cannot fabricate my own board with a package so small. So I need to make this phase detector on my own. I have found a 433MHz log amplifier like the AD8302's but can someone explain the theory of a log amplifier phase detector? Or just tell me how to make a 433MHz phase detector?