TY - JOUR
TI - Effect of antenna size on rock mass breaking efficiency under open-ended microwave treatment
AU - Xue Shou-Ning
AU - Zhang Yang
AU - Luo Jun
AU - Xu Fei-Long
AU - Yang Ben-Gao
JN - Thermal Science
PY - 2025
VL - 29
IS - 2
SP - 1259
EP - 1265
PT - Article
AB - Antenna size is a critical factor influencing the efficiency of open-ended  microwave rock-breaking. An electromagnetic-thermal-mechanical coupling  model was developed to systematically investigate the influence of antenna  size on the temperature distribution within the rock mass under microwave  treatment. Furthermore, the evolution of rock mass damage was analyzed based  on the stress filed induced by microwave treatment. The results demonstrate  that decreasing the antenna size can significantly enhance the  electromagnetic power loss density, thereby accelerating the rock-breaking  process. However, a moderate increase in antenna size can broaden the extent  of rock mass damage and improve the overall efficiency of microwave energy  utilization.