Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi all,
I am going to be measuring a 5-port multiplexer in the future and wanted to confirm my process with the gurus.
I only have access to a 4-port network analyzer so my thoughts are to measure the DUT 5 times to get all possible combinations.
Then post-process the 5 files, combining into...
Hi gents,
When conductive metal layers are connected, the overall resitivity of the metals is small. Though during this process, an oxide will form between these layers.
A parasitic capacitance can be calculated by using the simple parallel plate model.
However I am having trouble determining...
Hey guys,
In an ADS schematic let's say I have two 2-port networks. A S parameter simulation would give a scattering matrix for a four port but ports 1&2 do not interact with ports 3&4.
Is there a way to tell ADS that I only want S11,S22, S21, S12 and S33,S44,S34,S43?
I think I got it, as the main lobe moves passed endfire, the grating also also starts to creep in which means an interferer can come through the grating lobe.
For the condition, if the array is steered past endfire the gain can actually increase a useful amount but I am wondering what does the additional gain “cost” in array performance?
It just came to my mind but what are the main reasons for using high frequency communication.
The only thing that comes to mind is more bandwidth which I think is probably the main driving point.
However, the distance traveled by a higher frequency signal would be less compared to a lower...
Doubt there might be one since simply listening to any engineering topic doesn't really work but does anyone know of any podcasts about LTE and its releases or other radio access technologies like WCDMA or GSM ?
:grin:
Hi guys,
I know conjugate matching provides maximum power transfer. I tried deriving it but am only able to get it for real values.
If Ri = Zi and Rl = Zl where Zi and Zl are complex, I don't see how I would get Zi = Zl*.
I know I am overlooking some simple complex number rule.
I'm wondering what the main reason is for having dual bands high and low ?
Can the phone use both high and low band at the same time, sort of like LTE carrier aggregation?
If so then there would be more BW so more data can be transferred?
I am having trouble understanding the limit established in the specification.
It is mentioned that the in-band emission limit is defined as the "higher of PRB - 30 dB and the power sum of all limit values (General, IQImage or Carrier leakage)".
I don't quite understand the power sum of all...
Hi,
I'm building a Wifi 2.4GHz receiver for class using a 0.13 um process operating at 1.2V.
I need some advice. I'm making a heterodyne receiver and somewhat finished my LNA design.
The next part after the LNA would be the Image Rejection Filter for the mixer and one of the
specifications...
I am referencing a LNA linearization technique paper:
https://www.jpier.org/PIERC/pierc17/03.10082411.pdf
It is mentioned on page 33 of the article that,
"It should be noted that the IIP3 is independent of varying capacitance (C1), because the C1 is for ac ground."
for Figure 1.
How is the...
Hi,
I am reading from Thomas Lee's book on RFIC about bandgap references. It uses an acronym TC and I can't seem to figure it out.
"The best we can do is achieve zero TC at one temperature. Further more, in order to achieve this zero TC condition at that one temperature ..."
TC= temperature...
Hi all,
I am referencing this paper:
Modified Derivative Superposition, Aparin and Larson
**broken link removed**
I am having trouble getting a plot like in Figure 7 where it displays the IMD3 components.
I can determine the ordered nonlinearity terms from (3) easily using a dc sweep of...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
