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{"id":1874,"date":"2019-02-11T14:51:01","date_gmt":"2019-02-11T14:51:01","guid":{"rendered":"http:\/\/www.akoriot.com\/?p=1874"},"modified":"2021-03-03T09:31:40","modified_gmt":"2021-03-03T09:31:40","slug":"certification-requirements","status":"publish","type":"post","link":"https:\/\/www.akoriot.com\/antenna\/certification-requirements\/","title":{"rendered":"Recertification requirements for an off-the-shelf module"},"content":{"rendered":"\n
Q: I have a question for you. It can be assumed that my new product contains a certified GSM module and is connected to a PCB antenna I developed. If my device is to receive CE certification, does it need to be fully re-tested? Will my custom PCB antenna cancel the wireless module certification?<\/p>\n\n\n\n
A: The CE (RED) certification only applies to the radio module and is not transferred to the complete circuit board and enclosure. CE +CE \u2260 CE. You will have to test the final configuation, but only a subset of the tests already passed by the GSM module on its own.<\/p>\n\n\n\n
With a badly designed antenna with a high Return Loss, harmonics can be generated quickly. Also, even a good chip antenna that is incorrectly integrated, for example with a ground plane that is too small or with a poor layout may also lead to harmonics.<\/p>\n\n\n\n
If you don\u2019t have any experience or measurement equipment (Vector Network Analyser), it is difficult to evaluate a self-made PCB antenna. If you are lacking experience then we recommend using an external antenna consultant. A consultation with report often costs only 3 to 4 hours working time and saves thousands of Euros in repeated attempts at radio certification.<\/p>\n\n\n\n
If you buy a certified off-the-shelf radio and use your own antenna to you need to re-certifiy it?<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"\n
Q: I have a question for you. It can be assumed that my new product contains a certified GSM module and is connected to a PCB antenna I developed. If my device is to receive CE certification, does it need to be fully re-tested? Will my custom PCB antenna cancel the wireless module certification?<\/p>\n\n\n\n
A: The CE (RED) certification only applies to the radio module and is not transferred to the complete circuit board and enclosure. CE +CE \u2260 CE. You will have to test the final configuation, but only a subset of the tests already passed by the GSM module on its own.<\/p>\n\n\n\n
With a badly designed antenna with a high Return Loss, harmonics can be generated quickly. Also, even a good chip antenna that is incorrectly integrated, for example with a ground plane that is too small or with a poor layout may also lead to harmonics.<\/p>\n\n\n\n
If you don\u2019t have any experience or measurement equipment (Vector Network Analyser), it is difficult to evaluate a self-made PCB antenna. If you are lacking experience then we recommend using an external antenna consultant. A consultation with report often costs only 3 to 4 hours working time and saves thousands of Euros in repeated attempts at radio certification.<\/p>\n\n\n\n