Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014
Menu below is just a small sample of what is here!
 
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Require RF transceiver - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: Require RF transceiver
Posted: Thu Aug 19, 2010 8:36 am 
 
Lieutenant

Joined: Thu Aug 19, 2010 7:33 am
Posts: 3
Hi,
I am an RF design engineer. I am struck with one problem :( , hope you will help me out--

I am working for a wireless RF project for RF communication and customer needs the product in very harsh environment like operating temperature -80 to +140degC.

Please help me out in building RF communication circuitry for it. I would initially need RF transceiver which works at that temperature.

Looking forward for your valuable suggestions, thanks in advance

Vandana


 
   
 
 Post subject: Re: Require RF transceiver
Posted: Thu Aug 19, 2010 10:34 am 
 
Colonel

Joined: Tue Apr 11, 2006 8:13 pm
Posts: 44
Vandana,

It is probably going to be difficult finding components that work over that temperature range. Even if you do, you would have to go to MIL grade parts which will be prohibitively expensive.

You might look at some form of thermal control for the circuit to keep it within reasonable operating temperatures.

Karthik


 
   
 
 Post subject: Re: Require RF transceiver
Posted: Fri Aug 20, 2010 2:08 am 
 
Lieutenant

Joined: Thu Aug 19, 2010 7:33 am
Posts: 3
Thanks Karthik for your reply...
Even I am thinking same to use heat insulators to protect the circuitry, but i do not have much experience in it.
Can you please sugest some material and its usage application of heat insulators.

Regards,
Vandana


 
   
 
 Post subject: Re: Require RF transceiver
Posted: Fri Aug 20, 2010 12:33 pm 
 
Colonel

Joined: Tue Apr 11, 2006 8:13 pm
Posts: 44
Minco makes a variety of heat strips that can be used on a variety of surfaces. http://www.minco.com/

One way of doing this is to use a microcontroller to monitor temperature (ambient and/or board temp) and based on some pre-defined setpoint, turn on/off the heat strip.

You might also get some pre-configured thermal control unit - minco might have them as well.


 
   
 
 Post subject: Re: Require RF transceiver
Posted: Mon Aug 23, 2010 2:13 am 
 
Lieutenant

Joined: Thu Aug 19, 2010 7:33 am
Posts: 3
Thanks Karthik.

I will look in to it, but I am worried whether any microcontroller will work at this temperature?

If you know any of those then please let me know....

Thanks again for your response....

Vandana





Posted  11/12/2012
A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website