http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html All about PCB Fri, 30 Jul 2010 04:31:57 +0000 http://wordpress.org/?v=2.7.1 hourly 1 http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html/comment-page-1#comment-152 Numbat Sun, 28 Jun 2009 21:43:53 +0000 http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html#comment-152 You should have a ground plane on your board for all RF earths. RF grounding is quite a bit different from digital and audio practice. You are mostly interested in removing all reactance from the ground connections. This means broad short connections. You should have a ground plane on your board for all RF earths. RF grounding is quite a bit different from digital and audio practice. You are mostly interested in removing all reactance from the ground connections. This means broad short connections.

]]> http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html/comment-page-1#comment-151 amanssci Sun, 28 Jun 2009 15:00:41 +0000 http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html#comment-151 You can not "filter" a digital ground. A digital ground is a return path for the supply currents of your digital logic. An analog ground is a reference point for all your analog voltages. In a well designed circuit there are no currents flowing through that ground connection. Analog ground and digital ground meet in a single point, usually where the power supply is connected to the board. That way none of the digital currents can flow through those analog ground nets. Please read up on the basics of mixed signal design. There are plenty of good books and application notes out there. You can not “filter” a digital ground. A digital ground is a return path for the supply currents of your digital logic. An analog ground is a reference point for all your analog voltages. In a well designed circuit there are no currents flowing through that ground connection. Analog ground and digital ground meet in a single point, usually where the power supply is connected to the board. That way none of the digital currents can flow through those analog ground nets.
Please read up on the basics of mixed signal design. There are plenty of good books and application notes out there.

]]> http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html/comment-page-1#comment-150 Claire<3 Sun, 28 Jun 2009 08:48:47 +0000 http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html#comment-150 idk idk

]]> http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html/comment-page-1#comment-149 allthewo Sun, 28 Jun 2009 05:45:38 +0000 http://www.pcb7.com/how-do-i-connect-a-sma-connector-on-the-pcb.html#comment-149 The correct way is to use a straight jacket SMA printed circuit board receptacle, part number 251-060-0040G. See: http://www.winchesterelectronics.com/pro... The correct way is to use a straight jacket SMA printed circuit board receptacle, part number 251-060-0040G. See: http://www.winchesterelectronics.com/pro...

]]>