How can signals be transmitted and received through a single antenna? What is it in the circuit that makes this happen? Just a simple switch?

 

What sort of device are you asking about?? There are a whole lot of different schemes around for different devices. Some devices transmit and receive at the same time, on different frequencies. Some systems constantly switch back and forth very rapidly. Some devices are push-to-talk and listen the rest of the time. And some systems use digital magic to send data in both directions at once.
SO, what kind of device is the TS asking about???

 

What sort of device are you asking about?? There are a whole lot of different schemes around for different devices. Some devices transmit and receive at the same time, on different frequencies. Some systems constantly switch back and forth very rapidly. Some devices are push-to-talk and listen the rest of the time. And some systems use digital magic to send data in both directions at once.
SO, what kind of device is the TS asking about???

Actually, my purpose in asking this question is to determine which of the types you wrote can be installed on my own system. I want to find the answer to the question of which one would be more suitable. I'm working on a backscatter system that will harvest energy and use ASK modulation. While energy harvest, I was thinking of using logic gates and RF switches to control the process to sending my modulated signal, but I have questions in my mind about how it will happen.

 

OK, now I see the application, sort of. What power level and frequency will it be transmitting, and what will the receive frequency be? It seems like it might be receiving and transmitting at the same time. Will that actually be the case?

 

The basic answer is that there is an impedance discontinuity. This is unavoidable in most cases, but the behavior can be characterized. A portion of the signal will pass through the discontinuity, and the rest will be reflected back to the source. Your job as a designer is to maximize the trnasmission and minimize the refelection.

 

Welcome to AAC.

Is this question related to coursework, such as a capstone project?

 

Welcome to AAC.

Is this question related to coursework, such as a capstone project?

yes,it does

 

High speed digital lines and wireless share the same frequency moving data faster but the RF design is completely different.
The RF design principals are not shared in common with digital. Most circuit board techs and some others are ignorant to these differences.
At the same time RF engineers have trouble designing high speed data lines. The frequency domain seen on a
spectrum analyzer differs from the time domain on an oscilloscope. A company purchasing more bandwidth
needs to make better use of that bandwidth. An RF engineer might put a stub design on a pcb but the Digital engineer
will run him off to his transceiver antenna because the method for handling impedances are very different.
Transceiver Antennas and PCB, what relationship? There are two conflicting aspects, faster microwaves in the time domain
and the other is faster microwaves in the frequency domain of newly allocated bandwidth. The schools have to play an active as the
number of specialty engineers have something in common. If you bring together Alumni graduate engineers 2023 from engineering fields, here is what they are saying.

 

We still have no clues as to frequencies, operation scheme, although now we can guess that the power level is low, and probably the operation is simplex, probably not polled.