Michael wrote:

Hi - I'm using some Laipac "easy link" modules in a custom remote
control/home automation device for my house. I'm using the 433.92mhz
models, datasheet he http://www.laipac.com/Downloads/Easy/TLPRLP434A.pdf
Can anyone give me any advice about how to design an antenna for this? The
reciever will be embedded in an outside wall - so the antenna can be as big
as it needs to be. The transmitter's antenna will be in a hand held device
- so the smaller the better. Can anyone give me any tips as to how to
design this antenna? And sorry for cross posting - I wasn't sure which of
these two newsgroups this question fit best. Thanks, and happy holidays!

A simple 1/4 wave antenna should do for starters - just cut a piece of
wire to about 70/4 = 17.5 cm.

Leon
--
Leon Heller, G1HSM
Email:
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Leon Heller wrote in
:



Michael wrote:

Hi - I'm using some Laipac "easy link" modules in a custom remote
control/home automation device for my house. I'm using the 433.92mhz
models, datasheet he
http://www.laipac.com/Downloads/Easy/TLPRLP434A.pdf Can anyone give
me any advice about how to design an antenna for this? The reciever
will be embedded in an outside wall - so the antenna can be as big
as it needs to be. The transmitter's antenna will be in a hand held
device - so the smaller the better. Can anyone give me any tips as to
how to design this antenna? And sorry for cross posting - I wasn't
sure which of these two newsgroups this question fit best. Thanks,
and happy holidays!

A simple 1/4 wave antenna should do for starters - just cut a piece of
wire to about 70/4 = 17.5 cm.

Leon

OK - that sounds very manageable for the reciever - but what about the
transmitter? I was hoping to make it the size of the typical keyless entry
keyfob. Is that even remotely possible? Thanks,

Michael

Michael wrote:

Leon Heller wrote in
m:
Hi - I'm using some Laipac "easy link" modules in a custom remote
control/home automation device for my house. I'm using the 433.92mhz
models, datasheet he
http://www.laipac.com/Downloads/Easy/TLPRLP434A.pdf Can anyone give
me any advice about how to design an antenna for this? The reciever
will be embedded in an outside wall - so the antenna can be as big
as it needs to be. The transmitter's antenna will be in a hand held
device - so the smaller the better. Can anyone give me any tips as to
how to design this antenna? And sorry for cross posting - I wasn't
sure which of these two newsgroups this question fit best. Thanks,
and happy holidays!

A simple 1/4 wave antenna should do for starters - just cut a piece of
wire to about 70/4 = 17.5 cm.

OK - that sounds very manageable for the reciever - but what about the
transmitter? I was hoping to make it the size of the typical keyless entry
keyfob. Is that even remotely possible? Thanks,

A loop antenna is the most compact, either a loop of wire or a PCB
track. Some info on designing them he

http://www.nvlsi.no/files/Product/ap...tesallnRFn.pdf


Tim
--
The .sig is dead.