Merkel, H. F., Khosropanah, P., Sigfrid Yngvesson, K., Cherednichenko, S., Kroug, M., Adam, A., et al. (2001). An active zone small signal model for hot-electron bolometric mixers. In _Proc. 12th Int. Symp. Space Terahertz Technol._ (55). San Diego, CA, USA.