RIGOL Technologies (test equipment) - RF Cafe
Windfreak Technologies
 

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:

AirplanesAndRockets.com

Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes App Notes Calculators Education Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Homepage Thank you for visiting RF Cafe!
everythingRF RF & Microwave Parts Database (h1) - RF Cafe

mixer selection - RF Cafe Forums

RF Cafe Forums closed its virtual doors in 2012 mainly due to other social media platforms dominating public commenting venues. RF Cafe Forums began sometime around August of 2003 and was quite well-attended for many years. By 2010, Facebook and Twitter were overwhelmingly dominating online personal interaction, and RF Cafe Forums activity dropped off precipitously. If the folks at phpBB would release a version with integrated sign-in from the major social media platforms, I would resurrect the RF Cafe Forums, but until then it is probably not worth the effort. Regardless, there are still lots of great posts in the archive that ware worth looking at.

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

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

newcome
Post subject: mixer selection Posted: Sat Dec 24, 2005 12:40 am
Who can recommend a mixer which can convert RF 5.8GHz to IF 2.4GHz
Thanks


Top

IR
Post subject: Posted: Sat Dec 24, 2005 4:47 pm

Site Admin


Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello newcome,

Mixer is not being chosen only according to the freuquency range that in can convert, but according to additional other parameters as: LO power level, IP3, P1dB, Return Loss... You should define these parameters in order that one can help you choose the suitable device.

_________________
Best regards,

- IR


Top

newcome
Post subject: mixerPosted: Sat Dec 24, 2005 7:07 pm
Thank your reply. I look for SMT package mixer from RFIC companies such as mini-circuits, not mixer module. It looks not easy to find this kind of mixer which can cover the needed frequency band. Of course, IP3 high is better. Could you recommend any SMT type?( module type too enpensive)


Top

IR
Post subject: Posted: Sun Dec 25, 2005 3:38 am

Site Admin


Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello again newcome,

I was looking for the type of mixer you need, it is indeed a bit non-trivial to find such mixer. Anyway, I found couple of models from Hittite:

http://www.hittite.com/product_info/pro ... hmc129.pdf
http://www.hittite.com/product_info/pro ... 219ms8.pdf

Hope this helps, they have several other models like you need in their website.

www.hittite.com

Good luck!

_________________
Best regards,

- IR


Top

RK
Post subject: Posted: Mon Dec 26, 2005 2:44 am
Of course it depends on you performance requirments, but you can drive the IF port with a 1.7GHz @ say 10dBm. Put 5.8GHz into the LO and take the IF from the "RF" port. The harmonic of 1.7GHz will mix with 5.8GHz.

For example the MCA1-60 from Minicircuits may work. Probably a few from Hittitie too.

You can swap the LO and RF, there will be a trade between IIP3 and Conversion Loss.


Top

newcome
Post subject: thanksPosted: Mon Dec 26, 2005 1:55 pm
Thank IR and RK, HMC129 is chip type, not convenient, HMC219MS8
LO data availabe only down 4GHz, how about 3.3GHz operating?

For harmonic mixing, it is novel idea, but it only with harmonic type (anti-parallel diode) may work well.

MCA1-60 is my first choice, IF data only 2.0GHz, but may extend to 2.5GHz . Do you have better choice? Thanks again. Happy New Year


Top

newcome
Post subject: Posted: Mon Dec 26, 2005 11:39 pm
IR,
I think your recommended HMC219 may work. It doesn't offer IL below 4GH and IL down quickly from 5GHz to 4Ghz, but for LO VSWR data, it may work.


Top

RK
Post subject: Posted: Tue Dec 27, 2005 1:02 am
At the frequencies you've mentioned, I've personally had the most luck with Hititte mixers. Especially the cost versus performance factor.


Top

Guest
Post subject: Posted: Tue Dec 27, 2005 10:26 am
RK,
Thanks for sharing your experience


Top

Guest
Post subject: Hittite Applications GroupPosted: Tue Dec 27, 2005 12:24 pm
If you have specific requirements, you may consider calling the Hittite Appplications Group. They many times have data that is not shown in the data sheet and Hittite ususally come out with 75-100 new parts a year, so there may be Mixer that will better fit your requirements. I use Hittite parts whenever I can just because of the great support I get from them.


Top

IR
Post subject: Posted: Tue Dec 27, 2005 5:16 pm

Site Admin


Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello newcome,

You welcome! But for the next time, please be more specific concerning the parameters of the deivce you are looking for. I t will make it easier to help you

Hope you will find your suitable mixer!

Happy New Year!!

_________________
Best regards,

- IR


Top

newcome
Post subject: Posted: Tue Dec 27, 2005 7:35 pm
Thanks all for your suggestion and advice



Posted  11/12/2012
Copper Mountain Technologies - RF Cafe
EMC Directory
LOTUS Communications Systems Modular RF Component Building Blocks - RF Cafe
 

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free