need power amplifiers..

[wishbhonez]

hi,

im currently doing my a project right now and it's dealing with microwave frequencies. I NEED A POWER AMPLIFIER that will boost my output and the same time has a frequency response from 900Mhz to 2.5Ghz. is there an IC that will do the job??
i've searched the internet but i haven't found one yet..

please help me..

tnx

 

[stevez]

Monolithic Microwave Integrated Circuit (just google on MMIC) comes to mind though I have no skills/experience with them. I've seen relatively simple broadband amplifier designs using MMICs.

 

[audioguru]

you will cause interference with cell phones and you will cook yourself and anybody nearby.

 

[HiTech]

... not if he's looking for a very low level amp like a watt or so. Then again could we safely classify a 1 watt amp as a power amp? Typically the word power in that context is synonous with a substantial high output.

 

[RadioRon]

hi,

im currently doing my a project right now and it's dealing with microwave frequencies. I NEED A POWER AMPLIFIER that will boost my output and the same time has a frequency response from 900Mhz to 2.5Ghz. is there an IC that will do the job??
i've searched the internet but i haven't found one yet..

please help me..

tnx

Such amplifiers are common as dirt and some are even available through Digikey. Of course, I'm assuming you don't need a lot of power. Once your needs exceed about 15 dBm or so, your selection is reduced somewhat. Below 10 dBm there are many many to choose from. Try searching at companies like Anadigics, Avago Technologies (former Agilent semi), NXP Semiconductor (former Philips semi), RF Monolithics, NEC Semiconductor (via CEL), RF Microdevices, Mimix Broadband, M/ACom, Toshiba, Freescale, Texas Instruments, National Semiconductor, Infineon, Atmel, IBM, Maxim, Renesas, Rohm, ST Microelectronics, Analog Devices, and many more. I suspect I haven't even listed half of them.

But the key question is how much power do you want? There is a sudden drop in the number of suppliers as soon as you exceed about 15 dBm. It is much more difficult to find a single IC that does the job covering 900 MHz to 2.5 GHz when your power requirement exceeds about 33 dBm.

Many of these manufacturers are having such a good time selling to cellphone makers that they don't bother with small volumes through distribution and so some of these will be unavailable to the amateur or hobbyist. Deal with distributors to insure supply.


I did a search at Richardson Electronics (an RF specialist distributor) and found this high power product that might work for you:

AETHERCOMM SSPA 0.8-2.5-20 (and others in Aethercomm lineup)

Here is an example of a broadband amp in IC form that is puts out about 24 dBm : Anadigics AGB3301.


This might also be useful if you only need about 1 watt:
https://www.rfmd.com/pdfs/3809.pdf

 

[Sceadwian]

Keep in mind broadcasting at those power levels is likley illegal in your area.

 

[Hero999]

What power level do you require?

ICs will work up to a couple of Watts but if you want several hundereds of Watts then go for a kystron.

 

[Nigel Goodwin]

Post deleted and thread locked!

Cell phone jammers are highly illegal and NOT suitable for discussion on these forums.

Moderator.