freescale f antenna
can two diffrence frequency antenna (2.45GHz and 433MHz) design on a some pcb?
please advise....
you'll find here some F antenna examples:
h**p://www.freescale.com/files/rf_if/doc/app_note/AN2731.pdf
hope this helps,
//a
what is your design spec for 2.4 GHz antenna ?
Actually i dun have any specify design spec, what kind of design spec should i have? please advise... what i want is the smallest size F-antenna which can transmit at 2.45GHz (bluetooth range)...
Any good antenna software which can simulate F-antenna easily?
For bluetooth you can use even a piece of wire....!
The range is so short that does not matter the antenna...does not have
to be eficcient or matched....just joking.
I even found people saling antennas without being tested for pattern or
even return loss....
There are a lot of software for electromagnetics field simulation: HFSS, I3ED,
CST, XFDTD, NEC, etc.........etc......
Usually antennas are outside the applications...you know as in old police radios...
nowdays, they want internal(embedded) antennas....is a big problem for antennas
and rf engineers since some companies believe that all you need to do is design
the digital part and all that and stick an antenna in there and zap..."must work".
That is not true, the whole device becomes the antenna, there is ground planes
and plastic(dielectrics) sorrounding the antenna that the antenna is shorted
must of the time or least de-tunned....
So, my advice is ...be careful...and test...and test...and test....
The size of the antennas for 2.4 and 433 are so disimilar than is not even worthy
to try to make a dual design, if that is what you want....
For 2.4 band the size is small and can be even smaller using techniques for size
reduction....even using the techniques for size reduction for 433 MHz the size
may be considerable...of course depends on the size of the device itself..
I am totally new in this "Antanna Design" and I had downloaded H/F/S/S sduent version but don't know how to use it....can anyone help me on this....? any tutorial pdf out there?
Sorry, the one that i downloaded is Ansoft Designer SV...not HFSS, any different between this two software? can i design F Antenna using Ansoft Designer SV? and how to use it? please advise...
Hi everybody! :
I'm trying to design an inverted-F printed dual-band antenna (2.4Ghz - 5.5 Ghz) for a PCMCIA card. My problem is that it's my first experience and I don't know which are the dimensions to start simulating. Any help will be useful. Thanks in advance