Based on Locally Resonant Metamaterials (LRMs), we present a tunable two-pole meta-filter for X/Ku-band power applications, demonstrating continuous reconfiguration from 9.6 to 12.3 GHz via a standard WR75 transition and an adjustable meta-port. Four tuning states yield relative bandwidths ranging from 6.7% to 13.2% with insertion loss ≤ 0.1 dB. Power handling capabilities were investigated using SPARK3D simulations, revealing thresholds rising from 64 kW at 9.6 GHz to 120 kW at 12.3 GHz. Experimental results will be presented during the conference.