Categories
Statistics
Flag Counter
Since 08.08.2014
Counts only, if "DNT = disabled".

Your IP is 44.211.31.134
ec2-44-211-31-134.compute-1.
Info
Valid HTML 4.01 Transitional Creative Commons Lizenzvertrag
rss
เราจะทำแบบวิศวกรผู้ยิ่งใหญ่
We love the King
24. July 2024
Your valuable opinion :
5 stars

Avg. 6 from 2 votes.



RF-T-CoupledResonator-Bandpass.php    5971 Bytes    14-04-2021 07:12:52


Coupled Resonator L-C Bandpass


RF TOOLBOX 3599 EDITION






The assembled prototype




✈ Motivation




You can never have enough Power Supplies ... and Bandpass Filters. It is quite ususal, that the experiment demands for fast solutions. Finding a commercial solution is never fast. This kit allows our students to get a quick solution within one hour.




✈ Example #1, 5 MHz for Lithium




The component values have been calculated with the help of this calculator. We then verified the functionality with RFSim99. In a third step, the ideal inductors have been replaced with real world data, obtained from the datasheet. We used MLF2012 type from TDK. They are shielded and have a high Q. Formfactor is 0805 and Tolerance is 5 %. For the capacitors, we used VJ HIFREQ Series from VISHAY. The pictures below show how we did that, and what the circuit was expected to do.


Simulation Circuit ...
... and the calculated Frequency Response




And this is how this thing behaves when connected to a Network Analyser. (8753ES)



Real world performance. The upper slope is not that steep. This is caused by the capacitive coupling of the resonators.




✈ Share your thoughts



The webmaster does not read these comments regularely. Urgent questions should be send via email. Ads or links to completely uncorrelated things will be removed.


Your Browser says that you allow tracking. Mayst we suggest that you check that DNT thing ?

 
t1 = 6586 d

t2 = 188 ms

★ ★ ★  Copyright © 2006 - 2024 by changpuak.ch  ★ ★ ★

Impressum