Wireless digital subscriber line device having reduced RF interference
View Patent ↗A system and method for wireless DSL routing without signal interference is disclosed herein. The system includes a DSL interface, a WLAN interface, and a power system. The WLAN interface is isolated from the rest of the system by various isolation and signal interference reduction techniques. The system can be implemented in a single printed circuit board.
1. An integrated circuit board, comprising:
a first sub layer including a test impedance strip;
a second sub layer including a first ground slot proximate to a broadband circuit, wherein the broadband circuit comprises an Asymmetric Digital Subscriber Line (ADSL) modem interface for providing a broadband Internet connection; and
a third sub layer including an isolation gap between a wireless circuit and the broadband circuit, wherein the second sub layer is positioned between the first and third sub layers, and wherein wireless circuit comprises a Wireless Local Area Network (WLAN) interface electrically coupled to the ADSL modem interface.
2. The integrated circuit board of claim 1 , further comprising:
a fourth sub layer including a first and second metal shields over a portion of the wireless circuit, wherein the fourth sub layer is positioned over the first sub layer.
3. A method for fabricating an integrated circuit board, comprising:
providing a test strip in a first sub layer;
providing a first ground slot proximate to a broadband connection circuit in a second sub layer, wherein the broadband connection circuit comprises an Asymmetric Digital Subscriber Line (ADSL) modem interface for providing a broadband Internet connection; and
providing an isolation gap between the broadband connection circuit and a wireless circuit in a third sub layer, wherein the second sub layer is positioned between the first and third sub layers, and wherein the wireless circuit comprises a Wireless Local Area Network (WLAN) interface electrically coupled to the ADSL modem interface.
4. The method of claim 3 , further comprising:
providing a second ground slot in the second sub layer.
5. An integrated circuit board, comprising:
a ground slot proximate to a broadband access circuit, the ground slot configured to be a multi-layer partitioning ground slot, wherein the broadband connection circuit comprises an Asymmetric Digital Subscriber Line (ADSL) modem interface for providing a broadband Internet connection; and
an isolation gap between a wireless circuit and the broadband access circuit, the isolation gap configured to a multi-layer isolation gap, and wherein the wireless circuit comprises a Wireless Local Area Network (WLAN) interface electrically coupled to the ADSL modem interface.
6. The integrated circuit board of claim 5 , further comprising metal shields over portions of the wireless circuit.
7. The integrated circuit board of claim 5 , further comprising a transceiver power supply circuit included within the wireless circuit.
8. The integrated circuit board of claim 5 , further comprising control test impedance strip.
9. The integrated circuit board of claim 8 , wherein the control test impedance strip is configured to measure impedance associated with the board before traces are laid down or during fabrication of the board.
10. The integrated circuit board of claim 5 , wherein a dimension of each of the ground slot and the isolation gap is at least approximately 0.025 inches.