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1 answer
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Is there a static capacitance between the metals in coaxial cables and other metals in the environment (or at infinity)?

In a coaxial cable, we are familiar with the capacitance per unit length between the two metal conductors, which is given by C=(2pi epsilon)/log(r/R). However, in my circuit design, the static mutual ...
8 votes
3 answers
2k views

How are RF filters constructed?

I want to know what filter circuits look like in the RF (MHz-GHz) frequency range. Are they just like low frequency LC filters, but with appropriately adjusted component values? For example the VLF-80+...
0 votes
0 answers
105 views

Can parasitic capacitances be decoupled?

I was working with some IC that has a bus that is really sensitive to trace capacitance and cannot be loaded with more than 8.5 pF. I have to bifurcate the trace to an ADC because I need to see what ...
0 votes
1 answer
94 views

Resistor-Capacitor-Resistor configuration and layout differences

How you can explain the R-C-R configuration? Goertz zobel link to the web-article This looks to be used as a RF audio cable terminating, I suppose. Which can be the electro-technical difference of ...
1 vote
3 answers
1k views

BJT Capacitance at RF limmitations

I am trying to design a simple RF signal buffer using a MPSH10 BJT transistor. This is to operate at ~90MHZ and simply buffer an input RF signal to lower the out impedance of my oscillator which feeds ...