Antenna on 430 MHz

[Admin 2425]

The antenna is made of aluminum. traverse square tube with a side of 15mm, the 3xDirector and the dipole - rod diameter 5mm, cable reduction inside of the lower beam and the braid is attached to the lower dipole arm.

The three  elements directors, must be isolated from the support beams who are made of tubular aluminum rectangular(15x15x1mm)

[Admin 2425]

A good yagi antenna with 11 elements..

 

[Admin 2425]

Yagi UHF 433MHz 5el 10 dBi overview

 

And an antenna with 4 stack set on the vertical plane,20el-16dBi

 

sketch insulateed thru square boomm small

[Admin 2425]

Antenna Nova 433МHz out the window

1) name the type of cardioid. To the wall or window to hang. 
2) At-3dB level, the angle of the horizon 90...130° 
3) vertically pressed to the ground.. 
4), the bar 30...60 MHz for reception. On the transmission...420 446 with an acceptable SWR.

 

[RonTrids 0]

Hi,
May I ask you if you know where I can find information about how to design ideally an DIY rectangular antenna approx 35 mm X 10 mm or even a circular one diameter less than 20 mm please ?
Thank you very much for your help
Have a nice day
Skappy

[Admin 2425]

,,,,ok, but these dimensions are not for the 430 MHz frequency ... !!!

[BryRah 0]

Dont remember a brand. Its a standard wire antenna with a bend of around 45 deg. I riveted a 4" dia. piece of .040 aluminum to the belly skin to strengthen the mounting point.