The sintering temperatures of common microwave dielectric ceramics fall in the range between 1200 degrees and 1500 degrees C. In this study, prepared new microwave dielectric ceramics of Te-2(Mo1-xWx)O-7 showed a sintering temperature of 520 degrees C. Only monoclinic (P2(1)/c) Te-2(Mo1-xWx)O-7 phase was found in the X-ray diffraction patterns after sintering, an observation further confirmed by high-resolution transmission electron microscopy results. Microstructures were composed of angular grains in the sizes of 2-5 mu m. The microwave dielectric properties of pure Te2MoO7 and Te-2(Mo0.95W0.05)O-7 ceramics sintered at 520 degrees C can be summarized as epsilon(r)approximate to 13.6, Q x f approximate to 46 900 GHz, and tau(f)approximate to-36.0 ppm/degrees C and epsilon(r)approximate to 13.9, Q x f approximate to 25 820 GHz, and tau(f)approximate to-12.8 ppm/degrees C.