What power?
There are RF power modules available for various frequency bands and power levels. Mitsubishi make a range. VHF modules are available up to about 30W output, UHF modules tend to be lower power up to about 10W.
Ebay quite often has them.
Beyond this, you will have to make something which is way OTT for this forum.
Frank
There are RF power modules available for various frequency bands and power levels. Mitsubishi make a range. VHF modules are available up to about 30W output, UHF modules tend to be lower power up to about 10W.
Ebay quite often has them.
Beyond this, you will have to make something which is way OTT for this forum.
Frank
Have a look through the modules here:
http://www.rfparts.com/module_m.html
It looks like they have a couple that are about that power/freq range.
http://www.rfparts.com/module_m.html
It looks like they have a couple that are about that power/freq range.
Now I am doing a circuit about 433 Mhz. I found suitable chip for my project. But when I do the power amplifier with IC : RF2126. It requires power input : 19dbm min. However my signal has only 5dbm. Can you have a circuit to amplify my signal to 19dbm. I do not have much knowledge about this problems so it is very difficult for me to calculate the value of the components. I wait for your advices and helps. Thanks
You might be able to find a MMIC that will give you that kind of gain.
http://en.wikipedia.org/wiki/Monolithic_Microwave_Integrated_Circuit
Some examples are the MiniCircuits MAR/MAV,etc ranges.
(Hum,perhaps those are now discontinued? I don't see them on the site.)
Here's a similar product;
http://www.minicircuits.com/cgi-bin/modelsearch?model=GVA-84+
Agilent also makes some MMIC amps..
http://en.wikipedia.org/wiki/Monolithic_Microwave_Integrated_Circuit
Some examples are the MiniCircuits MAR/MAV,etc ranges.
(Hum,perhaps those are now discontinued? I don't see them on the site.)
Here's a similar product;
http://www.minicircuits.com/cgi-bin/modelsearch?model=GVA-84+
Agilent also makes some MMIC amps..
Luckyboydtt said:
http://www.minicircuits.com/products/amplifiers_main.html Single chip, can be cascaded.
Luckyboydtt said:
RFM gives the circuit in the data sheet, cascading means putting two RF amps in series. To attenuate the signal from your source you need a T-resistor attenuator, the impedance should be based on looking into the T-network from either side. This is calculated by Z short circuit and Z open circuit.
If you are considering the mini-circuit solution, then the amp is a single chip with nothing else added. However, power supply decoupling is important, stray lumped elements could cause the circuit to oscillate.
It is not easy to build and performance test RF equipment without a spectrum analyser and signal generator.
Also this is not quite a forum for RF, I would say that you would get better information from a HAM radio forum.
You don't tell us much about the application either, but what you are doing is not quite nice because 433 MHz is the keyless entry band and with pushing 1 watt could jam other nearby users and preventing them from unlocking their cars.
This is a typical application for car-thieves running a 1 kHz AM signal jamming a user from locking his car in a car park and then....
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