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2
votes
1answer
185 views
How should I write a feasibility study report?
I may be called upon to write a feasibility study report for consumer hardware (to be manufactured) and/or a service to be offered to clients in the near term. What is the proper technique here? ...
7
votes
4answers
770 views
MIMO: How Can Two Antennas So Close Together Receive Different Signals?
I'm trying to understand how MIMO (as used by 802.11n wi-fi and some upcoming cellular data standards) works in practice. I understand at least the gist of the theory of spatial multiplexing. What I ...
2
votes
1answer
296 views
Transfer Function of Non-Ideal Transformer
What is the mathematical relationship between primary and secondary windings?
It can be either in the s-domain, or a time domain expression.
This expression must contain all realistic parameters, ...
1
vote
3answers
2k views
Sample Application with LHI 778 PIR Sensor
For a motion detecting application I found a sensor with code LHI 778.
If you look at the datasheet in the link, the characteristics of its internal FET transistor is not specified and there is no ...
3
votes
3answers
1k views
Difference between configurations of unity gain buffer using op-amp
Is there any practical difference as to how a unity gain buffer using an op-amp might be configured? For example, the input signal can be connected to the noninverting input and the feedback to the ...
