A flat omni antenna with 3dBi gain is a type of antenna that transmits and receives radio signals equally well in all horizontal directions (omnidirectional) and has a gain of 3 decibels isotropic (3dBi). The 'flat' design often refers to a low-profile, planar structure, making it suitable for applications where aesthetics are important. The 3dBi gain indicates how effectively the antenna focuses signals compared to a theoretical isotropic antenna, offering a balance between wide coverage and moderate signal concentratio