An electronic device, for placement on an organic surface, includes a conductive sheet and a communication module. The conductive sheet has a corresponding first surface and second surface, wherein the second surface faces the organic surface. The communication module is disposed on the first surface, wherein surface area of the first surface is greater than surface area of the projection of the communication module onto the first surface. The communication module includes a cover body, a first radiating unit, and a circuit board. An accommodating space is formed in the cover body and has a first section and a second section, wherein the first radiating unit is disposed in the first section. The circuit board is disposed in the second section and has a signal processor unit that is electrically connected with the first radiating unit, wherein the signal processor unit drives the first radiating unit to form a first frequency mode.本發明提供一種電子裝置,供設置於生物體表上,包含:導電片體,具有相對之第一面及第二面,其中第二面朝向生物體表;以及通訊模組,設置於第一面上,第一面的面積大於通訊模組投影在第一面的面積。通訊模組包含:殼體,形成一容置空間,容置空間分別有第一區及第二區;第一輻射單元,設置於第一區內;以及電路板,設置於第二區中並且具有訊號處理單元與第一輻射單元電性連接;其中訊號處理單元驅動第一輻射單元以形成頻段模態。1‧‧‧導電片體1A‧‧‧第一面1B‧‧‧第二面2‧‧‧通訊模組3‧‧‧殼體4A‧‧‧第一輻射單元5‧‧‧電路板6‧‧‧訊號處理單元10‧‧‧電子裝置
