Mini-Circuits ZDSS Suspended Coaxial Diplexers offer a DC to 40GHz frequency range, low insertion loss, and fast roll-off. These diplexers combine low insertion loss with wide stopband, good power handling, temperature stability, and a small form factor, making them ideal for harsh operating environments. Low pass, high pass, band pass, diplexer, and multiplexer designs can be formed with this technology with passband, stopband up to 40GHz, and stopband with greater than 6x cutoff frequency. Mini-Circuits ZDSS Suspended Coaxial Diplexers are suitable for wideband instruments and systems like ECCM, ECM, ELINT, and ultra-broad receivers.