A comparison of W-band MMIC mixers using InP HEMT technology
This paper compares the performance of three different W-band mixer designs in the same InP HEMT technology. A resistive HEMT mixer, an active HEMT mixer, and a rat-race diode mixer are designed and measured for conversion, intermodulation and noise performance for an LO frequency of 94 GHz and IF frequencies ranging from 0.5 to 5 GHz. This is the first direct comparison of three high-performance W-band mixers fabricated in the same InP HEMT technology.