Lighting device with built-in rf antenna

摘要: A lighting device, such as a replacement comprising light source (LS), e.g. LEDs, for producing along an optical axis (OA). heat sink (HS) made of material with electrical resistivity being less than 0.01 Ωm, metallic part the housing, transports away from (LS). Radio Frequency (RF) communication circuit (CC) connected to antenna (A) serves enable RF signal communication, control device via remote control. Metallic components, including (HS), having extension larger 1/10 wavelength are arranged below virtual plane (VP) drawn orthogonal (OA) and going through (A). Hereby compact can be obtained, still satisfying radiation pattern obtained. The wire or PCB antenna, PIFA IFA type antenna. In special embodiment is formed on ring-shaped central hole allowing passage source. Preferably, positioned at least 2 mm in front (HS).