| công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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FXP830 bảng dữ liệu(PDF) 21 Page - Panasonic Semiconductor |
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FXP830 bảng dữ liệu(HTML) 21 Page - Panasonic Semiconductor |
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21 / 50 page ![]() PAN9019 / PAN9019A Wi-Fi and Bluetooth Module 5 RF Interface Module Integration Guide Rev. 1.0 Page 21 of 50 ➔ The measured return loss should look similar as shown: It ensures that the antenna is correctly tuned and thus the antenna radiates in the correct bands. Moreover, the effective impedance is close to 50 Ohm and the reflection towards the module is low, which is a precondition for the Tx power amplifier and Rx low noise amplifier to work as specified. 5.2.2 External Antennas Antenna Warning The PAN9019 / PAN9019A is tested with a standard MHF4(L) connector and with the antennas listed in the “PAN9019 / PAN9019A Product Specification”. When integrated into the OEM’s product, these fixed antennas require installation preventing end users from replacing them with non-approved antennas. Any antenna not listed in the “PAN9019 / PAN9019A Product Specification” must be tested to comply with FCC section 15.203 for unique antenna connectors and with section 15.247 for emissions. |
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