Hi guys, I'm a newbie here. It's good to be here. I'm working on my final year project on impedance matching in NFC antennas, and I'll be working on both manual and automatic matching. I have constructed a circuit for the antenna and utilized a DIL switch for my CSA. The CSA has 8 capacitors. Ideally I should be using a DMOS switch but it is not available over here.
The CSA consists of 8 ceramic capacitors and it has the following configuration:
1 x 1 pF
2 x 2.2 pF
1 x 4.7 pF
4 x 10 pF
This arrangement allows me to select a range of capacitances from 0 to about 50 pF. I'd greatly appreciate it if you guys could offer me advice on how to get a CSA with a DIL switch working for this. In particular, how can I get this to switch for manual AND automatic impedance matching?
If you need any more info on my project, please let me know. Many thanks, guys![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
The CSA consists of 8 ceramic capacitors and it has the following configuration:
1 x 1 pF
2 x 2.2 pF
1 x 4.7 pF
4 x 10 pF
This arrangement allows me to select a range of capacitances from 0 to about 50 pF. I'd greatly appreciate it if you guys could offer me advice on how to get a CSA with a DIL switch working for this. In particular, how can I get this to switch for manual AND automatic impedance matching?
If you need any more info on my project, please let me know. Many thanks, guys