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Antenna Receive signal on one side and Transmit on another side

by txd9087
Tags: antenna, receive, signal, transmit
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txd9087
#1
Apr17-13, 08:55 PM
P: 2
Hello everyone,

I'm currently working on a RF energy harvesting system. I need a transceiver like characteristic. But instead of transmitting and receiving into the same plane. I need the energy to be received on one side and then transmit on another side. Basically follow the diagram below: in a microstrip or stripline configuration. The Rx antenna receives the energy on one side and then

Rx >>>>>| conductor |dielectric |conductor >>>>>>Tx.

Please let me know if you don't understand.
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davenn
#2
Apr17-13, 10:28 PM
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P: 2,666
hi there
welcome to PF

Back to back antennas are sometimes used to get signals into difficult places ... say a valley shielded from a TV transmitter by the ridge. It can work, but the losses are significant.

I suspect tho that you are maybe dealing with short distances.

so explain clearly what you are trying to do and answer the below questions

signal source ?
distance from source to receive antenna?
receive and transmit antenna type and gain?
what is receiving the TX antenna output?
how far from the TX antenna is it?
What frequency are you wanting to use ?

cheers
Dave
txd9087
#3
Apr17-13, 11:12 PM
P: 2
Hi Davenn,

Yes i'm dealing with very short distances. Basically I want to use wave focusing mechanism to improve the efficiency of energy received at an antenna. But instead of converting RF energy into DC right after it is received by an antenna, I want to propagate that energy to another point by propagating the fields using dielectric material as a channel. But I will need to use another antenna to radiate the energy into that dielectric material (wave guided channel).

Signal source is simply any antenna- could be Dipole or plane wave in simulation.
Distance from source to the first antenna is about 30-50 mm
receive antenna would be a microstrip antenna (patch or fractal patch)
There are two targeted frequency that I'm currently using 5.5 GHz and 2.5 GHz.

berkeman
#4
Apr17-13, 11:22 PM
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Antenna Receive signal on one side and Transmit on another side

Quote Quote by txd9087 View Post
Hi Davenn,

Yes i'm dealing with very short distances. Basically I want to use wave focusing mechanism to improve the efficiency of energy received at an antenna. But instead of converting RF energy into DC right after it is received by an antenna, I want to propagate that energy to another point by propagating the fields using dielectric material as a channel. But I will need to use another antenna to radiate the energy into that dielectric material (wave guided channel).

Signal source is simply any antenna- could be Dipole or plane wave in simulation.
Distance from source to the first antenna is about 30-50 mm
receive antenna would be a microstrip antenna (patch or fractal patch)
There are two targeted frequency that I'm currently using 5.5 GHz and 2.5 GHz.
Can you just use a parabolic reflector? That would be the most efficient way to do this, if I understand your question.
the_emi_guy
#5
Apr18-13, 10:42 AM
P: 589
I may be wrong, but it sounds like txd9087 is trying to design the transition from antenna feedpoint to a transmission line. This is standard antenna matching, but at 5GHz would require a network analyzer.


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