Help me with calculating the loop area of an antenna

[halee awan]

antenna calc

hi to everyone
iam using the following RF(FM-RRF1 433c) module of www.okwelectronics.com

for our telemetry project....
the antenna specification that is mentioned in datasheet
by manufacturer for RX and TX
is as

1_ 34 Turns of enamelled copper wire diameter 0.5mm
close wound on 2.5mm diameter former
for helical antenna

2- Loop Antenna Area
4 To 10cm2 for loop antenna

3- 17.3cm @ 433MHz for wipe antenna

my question is that by which formula and conditions
Q1-the loop area (4_10cm^2) of antenna is calculated
as we know that the area of loop antenna S = N*pi*row^2 loop area
Q2-
By which factor 34 turn of 0.5mm diameter of copper wire is selected

 

[itsfanidotcom]

mno sadiko+microwave

i dont know...try to send simple questions

 

[jallem]

antenna calc

The size of an antennna always is proportional to
the frequency. So the area of the loop determine
the frequency at which the antenna will work.
Q2: usually the number of turns has to deal with
impedance of the antenna.

 

[halee awan]

Re: antenna calc

The size of an antennna always is proportional to
the frequency. So the area of the loop determine
the frequency at which the antenna will work.
Q2: usually the number of turns has to deal with
impedance of the antenna.

thx for reply but
dear as i have mentioned above the tx frequency is 433M then u calculate the area of loop antenna ,
more over i have read the book "element of electromegntic " by mno sadiko 2nd edition , about antenna topic ..iam fail to find out the exact area of the Loop antenna that is above mentoned at this frequncy 433M