-This work presents the experimental realization and the performances of a magnetostatic microwave straight edge tunable resonator (SER) placed on a silicon membrane. The aim of this approach is to study a miniaturised device, integrable in a planar micromachined microwave circuit. S 11 and S 21 parameters of this device are presented for different magnetic bias fields, exhibiting frequency tunability between 4.2 GHz and 7.25 GHz. The utilization of silicon membranes to support these devices offers important openings toward the integration of magnetostatic wave devices with micromachined structures.